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The year of 2023 was the second-warmest on record for the UK, narrowly behind the record set as recently as 2022.

It was also the warmest year on record for Wales and Northern Ireland, second-warmest for England and third-warmest for Scotland.

In this review, we look back at the UK’s climate in 2023, the significant climate events that shaped the year and how human-caused climate change influenced them. We find:

  • Eight of the 12 months of the year were warmer than average.
  • Somewhat unusually, the warmest periods were in June and September, with the high summer months of July and August generally cooler and wetter.
  • June was the hottest month of the year for the first time since 1966 and was the hottest June on record by a large margin.
  • Through a climate attribution analysis, we show that a year as warm as 2023 has been made around 150 times more likely due to human-caused climate change.
  • We would expect to reach or exceed the 2023 annual temperature in around 33% of years in the current climate.
  • 2023 was relatively wet with 1,290mm of rainfall, making it the UK’s 11th wettest year in a series going back to 1836.
  • The few wintery cold spells of the year were relatively short-lived.
  • 2023-24 has seen the most active start to the storm season since naming storms began in 2015.

(See our previous annual analysis for 2022, 2021, 2020, 2019 and 2018.)

The year in summary

The Met Office produces the HadUK-Grid dataset for monitoring the UK climate. Using geostatistical methods, we combine UK observational data from land-based stations across the country into a gridded, geographically complete dataset.

There is enough coverage of observational data in our digital archives for national coverage of monthly temperature since 1884, rainfall since 1836 and sunshine since 1910. These are used to define long-running climate series and climatological averages, which provide context for variability and change in the UK’s climate through time.

The maps below show the average anomalies compared to 1991-2020 for temperature (left), rainfall (middle) and sunshine duration (right) across the UK during 2023. The darkest shading shows the areas of the country that saw the warmest (red), driest (brown) and sunniest (yellow) conditions relative to the baseline climate.

The maps show that 2023 was, for most of the country, a warm and wet year compared to average, with close to average sunshine overall. The exception to this being western Scotland which saw drier and sunnier conditions.

Maps showing anomalies relative to a 1991-2020 reference period
Maps showing anomalies relative to a 1991-2020 reference period for (left) temperature (C), (middle) precipitation (%) and (right) sunshine (%). The darker shading indicates the greater departure from average. Credit: Met Office

The UK annual average temperature was 9.97C for 2023, which is just 0.06C below the record high of 10.03C in 2022. This continues an observed warming of the UK climate since the 1960s.

The hottest year in the UK during the whole of the 20th century was 1997, with an average temperature of 9.41C. So far in the 21st century, 13 years have exceeded this value, meaning that the majority of years so far in the 21st century have exceeded what was the hottest year of the 20th century.

In contrast, the coldest year of the 21st century so far was 2010 (7.94C) which was more than 0.5C warmer than the coldest year of the 20th century in 1963 (7.40C).

While 2010 is an extreme-cold year in the context of the current UK climate, it would have been much closer to the average for the late 19th and early 20th century. Climate change has significantly reduced the occurrence and severity of cooler conditions in the UK.

Looking regionally, the map below colour-codes UK counties by the ranking of annual average temperature.

The darkest shade of red identifies those counties that recorded their warmest year in 2023. It was the warmest year on record for all of Northern Ireland and Wales, and also for counties in western England and south-west Scotland.

The year 2022 retains the record for the majority of England and Scotland, with the exception of far north Scotland (for which the warmest year on record was 2014), Western Isles (2006), Orkney (2003) and Shetland (2014).

In addition, 2023 is also provisionally the warmest year on record for Ireland in the 124 year national series maintained by Met Eireann.

Map showing the relative ranking of average 2023 temperature for UK counties.
Map showing the relative ranking of average 2023 temperature for UK counties. Darker red shading indicates warmer temperatures. Credit: Met Office

Central England Temperature record

The year of 2023 was also the second-warmest year in the Met Office Central England Temperature series (CET), marginally behind 2022. The CET represents a region bounded by Hertfordshire, Worcestershire and Lancashire.

The chart below compares the records for the CET (black) and whole UK (red) for annual average temperature.

While there are inevitable differences in the precise ranking and anomalies of individual years between UK and CET, the series show the strong overall level of agreement. It also highlights how unusual the temperature of 2022 and 2023 are in the context of more than 360 years of observational data.  

Timeseries of annual mean temperature anomaly relative to a 1961-90 baseline
Timeseries of annual mean temperature anomaly relative to a 1961-90 baseline for (red) UK and (black) Central England Temperature. Dashed horizontal lines represent the 1991-2020 climatology for each series (which is 0.8C warmer than 1961-90 for both series). Credit: Met Office

Extremes and rainfall

The UK climate monitoring network records both daily maximum and daily minimum temperatures.

Last year was the record highest for the annual average daily minimum temperature for the UK, England, Wales and Northern Ireland, and fourth highest for Scotland.

It was the highest annual average daily maximum temperature for Northern Ireland, second-highest for the UK, England and Wales, and third-highest for Scotland.

The year of 2023 was relatively wet with 1,290mm of rainfall, equivalent to 111% of UK average rainfall and putting it just outside the top 10 as the 11th wettest year in a series going back to 1836.

It was the sixth wettest March and July, seventh wettest October and ninth wettest December. In addition, 2023 is the only year that has four individual months within the top 10 wettest on record for the respective month.

The wet spells of March and July followed dry spells during February and June, but it was the higher-than-average rainfall through the autumn and into December that pushed up the annual accumulation for the year overall.

As the chart below shows, there has been an observed increase in UK annual rainfall over recent decades, with 2023 joining a cluster of notably wet years that have occurred since the late 1990s.

The lines show the annual rainfall (dark blue) and trend (black dashes), along with the 1991-2020 average (pink), 2023 total (brown) and the highest (red dashes) and lowest (blue dashes) annual totals on record.

The drivers of annual rainfall trends are complex as the annual total masks distribution of rainfall throughout the year and will respond to a multitude of factors, which will include human-caused climate change but also contributions from natural climate variability.

Timeseries of annual UK rainfall amount from 1836 to 2023 with the trend represented by a black dashed line.
Timeseries of annual UK rainfall amount from 1836 to 2023 with the trend represented by a black dashed line. The 1991-2020 average is shown in pink and the highest and lowest values in the series are shown by the red and blue dashed lines, respectively. The 2023 value (latest) is represented by the horizontal brown line (1290mm). Credit: Met Office

Attribution of UK annual mean temperature in 2023

Met Office scientists conducted an attribution study to quantify the influence of human-caused climate change on the likelihood of reaching a UK annual average temperature at or above that recorded in 2023.

The method uses an established Met Office system for rapid attribution of extreme events. The analysis uses observed values of the UK annual temperature and temperature data for the UK drawn from 14 climate model simulations from the sixth – and most recent – phase of the global Coupled Model Intercomparison Project.

The models are evaluated against the observational data across the period 1884-2014 using approaches commonly adopted for attribution studies. This determines whether they are suitable for use in the assessment and provide adequate representations of UK annual average temperature trends and variability.

One set of model simulations uses only natural climate forcings (“NAT”) for the period 1850-2020, while another set uses all natural and human-caused forcings (“ALL”) for the historical period and the SSP2-4.5 emissions scenario, often described as a “medium” emissions scenario, out to 2100.

These simulations are then able to provide estimates of the likelihood of the UK annual temperature exceeding the observed 2023 value for the following scenarios:

  • A natural climate without human-caused greenhouse gases.
  • The current climate taken as a 20-year period centred on 2023.
  • An end-of-century climate under a medium emissions scenario taken as the period 2081-2100.

A reference baseline for all the experiments is the period 1901-30.

The estimated return period for a UK annual average temperature exceeding 9.97C in the NAT simulations is once every 460 years (with a range of 82 to 587). For the ALL simulations in the present day, this drops to once every three years (with a range of 2.86 to 3.17). For the ALL simulations in the future, this falls further and could see temperatures warmer than 2023 being exceeded more frequently than every other year.

Human-caused climate change is, therefore, estimated to have increased the likelihood of a year as warm as 2023 by a factor of more than 150.

These results are, unsurprisingly, very similar to an equivalent study conducted a year ago in relation to the record-breaking annual mean temperature of 10.03C set in 2022. Regarding that study, we stated:

“A warming climate means that an event that would have been exceptionally unlikely in the past has become one that we will increasingly see in the coming decades.”

Importantly, this analysis also indicates that 2022 and 2023 are not necessarily that extreme in the context of our current climate. This means that there is the potential for a far higher UK annual average temperature extreme even in the present-day climate. In addition, by the end of the 21st century, most years will be warmer than 2023.

Weather through the year

Temperature

The chart below tracks UK average temperatures through the year, with orange highlighting periods that were warmer than the 1991-2020 average for the time of year and blue were cooler than average.

Timeseries of daily UK average temperature during 2023.
Timeseries of daily UK average temperature during 2023. Orange shading are periods of above average temperature, blue shading is below average, and the solid black line is the 1991-2020 climatology by day of the year. The grey shading reflects the 5th, 10th, 90th and 95th percentiles of the temperature distribution and the red and blue lines are the highest and lowest values for each day of the year based on a dataset of daily data from 1960 to 2022. Credit: Met Office

Overall, 66% of days (240 days) were warmer than the 1991-2020 average for the time of year and 34% (125 days) were colder. The most notable warm spells were in June, September and December.

The highest maximum temperature of the year was 33.5C at Faversham (Kent) on 10 September, which is only the fifth time a highest maximum has been recorded in September. This is equal to the 1991-2020 average annual maximum temperature, so it is close to what we would expect as the highest UK temperature for a typical year. However, it is 2.3C higher than the average maximum during the earlier period of 1961-90 (31.2C).

In September, there was also a run of seven consecutive days with temperatures somewhere in the UK exceeding 30C, which is the longest such run in September on record.

The lowest temperature of the year was -16.0C, recorded at Altnaharra (Sutherland) on 9 March during a spell of wintry weather. This is 0.5C below the 1991-2020 average (-15.5C), but 3C above the 1961-90 average (-19.0C) for the year’s coldest day.

In 2023, both the hottest and coldest weather of the year occurred outside of the climatological summer and winter season, a reminder of the variable nature of the UK climate.

Both the highest maximum and lowest minimum temperature of the year for the UK have been increasing at a faster rate than the UK average temperature, reflecting that heat extremes are becoming more severe while cold extremes are becoming less severe in our warming climate.

Rainfall

For rainfall, the wettest periods were seen in March, July, October and December.

In the chart below, the rainfall accumulation is tracked through the course of the year. The solid black line is the 1991-2020 average, the grey shading reflects the variability across years with the red and blue marking the highest and lowest on record. Brown shading highlights points in the year where the total rainfall since the start of the year was below average, and blue regions are where it is above average.

The chart highlights that a dry spell in February was compensated by the wet March, and the dry spell through May and June was followed by a wet July, returning the year to near-average by the start of autumn.

Timeseries showing rainfall accumulation through 2023 for the UK.
Timeseries showing rainfall accumulation through 2023 for the UK. Brown shading represents a deficit in rainfall compared to average for that point in the year, and blue shading is an excess of rainfall compared to average. The solid line represents the 1991-2020 average, grey shading shows the 5th, 10th, 90th and 95th percentiles of the distribution, and blue and red the lowest and highest values based on a dataset of daily rainfall from 1891 to 2022. Credit: Met Office

Western Scotland was an exception to this rainfall pattern, with a somewhat drier autumn in particular, although wetter conditions in the east, including some extreme rainfall such as during storm Babet in October, meant that Scotland overall was still wetter than average. For England it was the sixth wettest year on record, third wettest for Northern Ireland, 12th for Wales and 32nd for Scotland.

Storms

The Met Office storm naming, first launched in 2015, provides a storm name list for the period from 1 September to 31 August each year in collaboration with Met Eireann and KNMI, the Irish and Dutch national weather services, respectively.

The 2022-23 storm season was rather notable for the relative absence of storms, with the only storms to be named under this scheme both occurring right at the end of the season in August – storms Antoni (5 August) and Betty (18-19 August).

In contrast, the 2023-24 season has experienced a much more active start with seven named storms from September to December, and the eighth (storm Henk) in early January 2024, which is the most active start to the named storm season since its inception in 2015.

Storm Name Dates affected UK Maximum wind gust Number of observing sites recording wind gusts over 50 knots
2022-23 names
Otto 17 February (named by Danish Meteorological Service) 72 Kt (83mph) Inverbervie, Kincardineshire 31
Noa 12 April (named by Meteo-France) 83 Kt (96mph) Needles, Isle of Wight 25
Antoni 5 August 68 Kt (78mph) Berry Head, Devon 2
Betty 18-19 August 57 Kt (66mph) Capel Curig, Conwy 5
2023-24 names
Agnes 27-28 September 73 Kt (84mph) Capel Curig, Conwy 15
Babet 18-21 October 67 Kt (77mph) Inverbervie, Kincardineshire 16
Ciarán 1-2 November 68 Kt (77mph) Langdon Bay, Kent 11
Debi 13 November 67 Kt (77mph) Aberdaron, Gwynedd 21
Elin 9 December 70 Kt (81mph) Capel Curig, Conwy 13
Fergus 10 December 64 Kt (74mph) Aberdaron, Gwynedd 11
Gerrit 27-28 December 77 Kt (89mph) Fair Isle, Shetland 42
Henk 2 January 2024 82 Kt (94mph) Needles, Isle of Wight 35

List of named storms for the 2022-23 and 2023-24 storm seasons

Overall, 2023 was calmer than average. This reflects a long-term decline in average wind speed, as illustrated in the chart below. This shows average UK wind speeds for each year since 1969 (dark blue line), the trend (black dashes), 1991-2020 average (pink), 2023 total (brown) and the highest (red dashes) and lowest (blue dashes) annual averages on record.

This long-term trend should be interpreted with some caution as it is possible that changes in instrumentation and exposure of the observing network through time may influence these trends. However, the decline is consistent with a widespread global slowdown termed “global stilling”.

More recently, global and UK data have shown that since 2010 the decline has stopped or even reversed.

Timeseries showing UK annual average wind speed over 1969-2023 (dark blue line) with the trend represented by a black dashed line.
Timeseries showing UK annual average wind speed over 1969-2023 (dark blue line) with the trend represented by a black dashed line. The 1991-2020 average is shown in pink and the highest and lowest values in the series are shown by the red and blue dashed lines, respectively. The 2023 value (latest) is represented by the horizontal brown line. Credit: Met Office

Winter

After a notably wet spell at the start of the year – resulting in flooding across south Wales and Midlands on the 12 January – the late winter period was characterised by a very sunny January and very dry February overall.

It was the driest February since 1993 with much of central and southern England, which received less than 20% of the normal monthly rainfall.

The climatological winter season (1 December 2022 to 28 February 2023) was drier than average and – as discussed above – relatively calm with just one named storm (Otto) occurring in an otherwise dry February.

The chart below depicts UK winter rainfall per year (dark blue line) since 1836. While 2023 was relatively, but not exceptionally, dry in the context of recent decades, it is closer to the average for earlier in the series. The winter of 2022-23 had 83% of the 1991-2020 average rainfall, but 94% compared to the earlier period of 1961-90.

Timeseries of winter (Dec-Feb) UK rainfall amount from 1836 to 2023 with the trend represented by a black dashed line.
Timeseries of winter (Dec-Feb) UK rainfall amount from 1836 to 2023 with the trend represented by a black dashed line. The 1991-2020 average is shown in pink and the highest and lowest values in the series are shown by the red and blue dashed lines respectively. Credit: Met Office

Comparing 1991-2020 to 1961-90, winter rainfall for the UK has risen by 14%. The increase is not uniform across the UK, however, with the greatest increases in excess of 20% across north and west Scotland, and smaller rises below 10% for central and southern England.

It is notable that, in a series stretching back to 1836, the five wettest winters have all occurred since 1990. The record wettest winter of 2013-14 had approximately double the rainfall of 2023, highlighting the large interannual variability in UK rainfall.

In contrast, at the time of writing, wet weather through the first half of the 2023-24 winter has resulted in widespread flooding across the country.

Climate variability is a critical driver in recent extremes of winter rainfall, while the emerging climate change signal resulting from increased moisture in the atmosphere is an important secondary factor contributing to the risk of wetter winters.

UK climate projections indicate a clear shift to higher probability of wet winters over the UK. This is caused by an increase in the number of wet days, an increase in intensity of rainfall, and a decrease in the proportion of winter precipitation falling as snow.

Spring

The first half of March was generally cold and resulted in some of the lowest temperatures of the year.

By the middle of the month, the situation became milder and wetter. March was exceptionally wet for many regions except for northern Scotland. It was the sixth-wettest March for the UK, third-wettest for England and Northern Ireland and fifth-wettest for Wales.

April saw temperature and rainfall statistics near-average, although Storm Noa was one of the most significant April storms since 2013, with hundreds of homes across south-west England and Wales left without power.

A maximum wind gust of 83 Kt (96mph) at Needles on the Isle of Wight was the highest wind gust on record for England during the month of April. This particular site is located at the top of a cliff exposed to westerly winds so is representative of a very exposed coastal location. Inland winds were lower, but still sufficient to cause some disruption.

May was warmer and drier overall, although heavy thunderstorms over 7-11 May caused surface-water flooding across parts of southern and eastern England. Drier weather from the middle of the month, however, resulted in a shift to wildfire reports across parts of Wales, the south-west and west Yorkshire by the end of the month.

Summer

It was the warmest June on record for the UK with an average temperature of 15.8C, beating the previous record of 14.9C that was set in the Junes of 1940 and 1976 by 0.9C. Previously, the top three warmest Junes were separated by just 0.1C.

The highest daily temperature reached in the month was 32.2C (on 10 and 25 June), which did not challenge the June temperature record of 35.6C, recorded on 28 June 1976. What was unusual about June 2023 was the persistence of the warmth rather than its severity. Temperatures exceeded 25C for at least a fortnight with peaks in excess of 30C.

A long-standing curious statistical quirk of UK climatology was that 13 June was the only June date that had never previously recorded temperatures in excess of 30C in meteorological records spanning over 100 years. This quirky fact was finally broken this year, reaching 30.8C on 13 June.

The chart below shows a comparison of the 2023 June heatwave with 1976, the previous joint record warmest June. This shows the UK-average daily maximum temperature through June and July for 1976 (dotted line and grey shading) and 2023 (blue line and orange shading).

The 1976 heatwave was certainly more severe than 2023, but occurred slightly later in the season, peaking in early July. In contrast, the persistent warmth in 2023 fell within the calendar month of June.

Timeseries showing UK averaged daily maximum temperature from 1t June to 31 July for 2023 and 1976.
Timeseries showing UK averaged daily maximum temperature from 1t June to 31 July for 2023 and 1976. The shaded regions show UK average maximum temperature above 15C for 2023 (orange) and 1976 (grey).

A significant contributing factor to the exceptional and persistent warmth was a major North Atlantic marine heatwave, which brought record-breaking temperatures in the North Atlantic and around the UK. A severe marine heatwave was declared in mid-June, which further amplified temperatures over the UK land.

An attribution study by the Met Office found that the likelihood of beating the UK land June temperature record had at least doubled compared to when it was first set in 1940. We estimated there was around a 3% chance of beating the record in a 1991-2020 climate and, by the 2050s, a record could be occurring around every other year on average under a high-emissions scenario.

Unsurprisingly, the June warmth was associated with a persistent high-pressure system resulting in plenty of clear skies and dry conditions. The month was, therefore, also the fourth sunniest June on record, and the sunniest June since 1957, but not as sunny as the exceptionally sunny month of May 2020.

Some more unsettled weather at the end of the month meant that while recording only around 68% of average rainfall, June was not dry enough to trouble any records.

A more unsettled situation then took over for the remainder of the summer, with conditions turning cooler, duller and windier.

It was the sixth-wettest July on record with 140.1mm and the wettest since 2009 (145.5mm). It was the wettest July on record for Northern Ireland and for parts of north-west England including Merseyside, Lancashire and Greater Manchester.

August continued the unsettled theme with a distinct lack of summery weather – however, it was not as wet as July.

A key driver of the wet high summer was a displacement in the jet stream to a more southerly track across the UK. The map below shows anomalies in wind speed at 250hPa, relative to a 1991-2020 average. (250hPa is a level of equal pressure and is equivalent to a height of around 10.5km.)

The purple regions show where the wind is stronger than average and orange they are weaker – highlighting a strengthening of the upper-level wind across southern England and a weakening in the more typical summer jet stream to the north of Scotland. This resulted in low-pressure weather systems from the Atlantic being directed on a more southerly track over the UK.

Map showing anomalies (ms-1) in 250hPa wind speed.
Map showing anomalies (ms-1) in 250hPa wind speed. Arrows show the direction of the anomaly. Image created by Met Office using ERA5 data from the Copernicus Climate Change Service Climate Data Store (CDS)

Despite being relatively wet during the high summer (July through August), the average temperature averaged across July (14.9C) and August (15.3C) was 15.1C. This was cooler than June (15.8C), but close to the 1991-2020 average for Jul-Aug (15.2C).

Another indicator of the influence of climate change on UK climate is that a wet summer such as that of 2023 is approximately 1C warmer than equivalently wet summers from the past.

Autumn (and December)

In early September, the jet stream shifted north and high pressure returned. Consequently, the UK experienced another heatwave bringing some of the hottest weather of the year, peaking at 33.5C at Faversham, Kent on 10 September.

A new high-temperature record was also set for the month for Northern Ireland with 28C at Castlederg, County Tyrone on the 8 September.

It was the longest run of days reaching 30C somewhere in the country during September on record at seven consecutive days (4-10 September). It is only the fourth time on record that the highest temperature of the year has occurred in September, with the other years being 2016, 1954, 1949 and 1919. High temperatures were not confined to the daytime and some locations also recorded “tropical nights” when the minimum temperatures do not drop below 20C.

The month concluded with Storm Agnes kicking off the 2023-24 storm season. But the early warmth contributed to it becoming the joint-warmest September on record for the UK (with 2006). An average temperature of 15.2C was warmer than July and only marginally behind August.

A rapid attribution conducted at the time showed that a September this warm would be exceptionally unlikely in a natural climate, but in our current climate there is approximately a 3% chance of reaching or exceeding it. A September this warm does still require the right combination of factors, but climate change is making such late-season warmth more likely.

The remainder of the autumn season and December continued the generally mild, wet and – at times – stormy theme, with the joint-sixth wettest October and joint-eighth wettest December on record. It was the sixth-warmest autumn for the UK and third-warmest for both England and Wales.

Reviewing 2023 demonstrates how the UK is subject to the combined influences of the variability in the weather, but also the influence of human-caused climate change. This is affecting both our climate statistics and also the likelihood of some types of extreme events.

The post Met Office: A review of the UK’s climate in 2023  appeared first on Carbon Brief.

Met Office: A review of the UK’s climate in 2023 

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The 2026 budget test: Will Australia break free from fossil fuels?

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In 2026, the dangers of fossil fuel dependence have been laid bare like never before. The illegal invasion of Iran has brought pain and destruction to millions across the Middle East and triggered a global energy crisis impacting us all. Communities in the Pacific have been hit especially hard by rising fuel prices, and Australians have seen their cost-of-living woes deepen.

Such moments of crisis and upheaval can lead to positive transformation. But only when leaders act with courage and foresight.

There is no clearer statement of a government’s plans and priorities for the nation than its budget — how it plans to raise money, and what services, communities, and industries it will invest in.

As we count down the days to the 2026-27 Federal Budget, will the Albanese Government deliver a budget for our times? One that starts breaking the shackles of fossil fuels, accelerates the shift to clean energy, protects nature, and sees us work together with other countries towards a safer future for all? Or one that doubles down on coal and gas, locks in more climate chaos, and keeps us beholden to the whims of tyrants and billionaires.

Here’s what we think the moment demands, and what we’ll be looking out for when Treasurer Jim Chalmers steps up to the dispatch box on 12 May.

1. Stop fuelling the fire
2. Make big polluters pay
3. Support everyone to be part of the solution
4. Build the industries of the future
5. Build community resilience
6. Be a better neighbour
7. Protect nature

1. Stop fuelling the fire

Action Calls for a Transition Away From Fossil Fuels in Vanuatu. © Greenpeace
The community in Mele, Vanuatu sent a positive message ahead of the First Conference on Transitioning Away from Fossil Fuels. © Greenpeace

In mid-April, Pacific governments and civil society met to redouble their efforts towards a Fossil Fuel Free Pacific. Moving beyond coal, oil and gas is fundamental to limiting warming to 1.5°C — a survival line for vulnerable communities and ecosystems. And as our Head of Pacific, Shiva Gounden, explained, it is “also a path of liberation that frees us from expensive, extractive and polluting fossil fuel imports and uplifts our communities”.

Pacific countries are at the forefront of growing global momentum towards a just transition away from fossil fuels, and it is way past time for Australia to get with the program. It is no longer a question of whether fossil fuel extraction will end, but whether that end will be appropriately managed and see communities supported through the transition, or whether it will be chaotic and disruptive.

So will this budget support the transition away from fossil fuels, or will it continue to prop up coal and gas?

When it comes to sensible moves the government can make right now, one stands out as a genuine low hanging fruit. Mining companies get a full rebate of the excise (or tax) that the rest of us pay on diesel fuel. This lowers their operating costs and acts as a large, ongoing subsidy on fossil fuel production — to the tune of $11 billion a year!

Greenpeace has long called for coal and gas companies to be removed from this outdated scheme, and for the billions in savings to be used to support the clean energy transition and to assist communities with adapting to the impacts of climate change. Will we see the government finally make this long overdue change, or will it once again cave to the fossil fuel lobby?

2. Make big polluters pay

Activists Disrupt Major Gas Conference in Sydney. © Greenpeace
Greenpeace Australia Pacific activists disrupted the Australian Domestic Gas Outlook conference in Sydney with the message ‘Gas execs profit, we pay the price’. © Greenpeace

While our communities continue to suffer the escalating costs of climate-fuelled disasters, our Government continues to support a massive expansion of Australia’s export gas industry. Gas is a dangerous fossil fuel, with every tonne of Australian gas adding to the global heating that endangers us all.

Moreover, companies like Santos and Woodside pay very little tax for the privilege of digging up and selling Australians’ natural endowment of fossil gas. Remarkably, the Government currently raises more tax from beer than from the Petroleum Resource Rent Tax (PRRT) — the main tax on gas profits.

Momentum has been building to replace or supplement the PRRT with a 25% tax on gas exports. This could raise up to $17 billion a year — funds that, like savings from removing the diesel tax rebate for coal and gas companies, could be spent on supporting the clean energy transition and assisting communities with adapting to worsening fires, floods, heatwaves and other impacts of climate change.

As politicians arrive in Canberra for budget week, they will be confronted by billboards calling for a fair tax on gas exports. The push now has the support of dozens of organisations and a growing number of politicians. Let’s hope the Treasurer seizes this rare window for reform.

3. Support everyone to be part of the solution

As the price of petrol and diesel rises, electric vehicles (EVs) are helping people cut fuel use and save money. However, while EV sales have jumped since the invasion of Iran sent fuel prices rising, they still only make up a fraction of total new car sales. This budget should help more Australians switch to electric vehicles and, even more importantly, enable more Australians to get around by bike, on foot, and on public transport. This means maintaining the EV discount, investing in public and active transport, and removing tax breaks for fuel-hungry utes and vans.

Millions of Australians already enjoy the cost-saving benefits of rooftop solar, batteries, and getting off gas. This budget should enable more households, and in particular those on lower incomes, to access these benefits. This means maintaining the Cheaper Home Batteries Program, and building on the Household Energy Upgrades Fund.

4. Build the industries of the future

Protest of Woodside and Drill Rig Valaris at Scarborough Gas Field in Western Australia. © Greenpeace / Jimmy Emms
Crew aboard Greenpeace Australia Pacific’s campaigning vessel the Oceania conducted a peaceful banner protest at the site of the Valaris DPS-1, the drill rig commissioned to build Woodside’s destructive Burrup Hub. © Greenpeace / Jimmy Emms

If we’re to transition away from fossil fuels, we need to be building the clean industries of the future.

No state is more pivotal to Australia’s energy and industrial transformation than Western Australia. The state has unrivaled potential for renewable energy development and for replacing fossil fuel exports with clean exports like green iron. Such industries offer Western Australia the promise of a vibrant economic future, and for Australia to play an outsized positive role in the world’s efforts to reduce emissions.

However, realising this potential will require focussed support from the Federal Government. Among other measures, Greenpeace has recommended establishing the Australasian Green Iron Corporation as a joint venture between the Australian and Western Australian governments, a key trading partner, a major iron ore miner and steel makers. This would unite these central players around the complex task of building a large-scale green iron industry, and unleash Western Australia’s potential as a green industrial powerhouse.

5. Build community resilience

Believe it or not, our Government continues to spend far more on subsidising fossil fuel production — and on clearing up after climate-fuelled disasters — than it does on helping communities and industries reduce disaster costs through practical, proven methods for building their resilience.

Last year, the Government estimated that the cost of recovery from disasters like the devastating 2022 east coast floods on 2019-20 fires will rise to $13.5 billion. For contrast, the Government’s Disaster Ready Fund – the main national source of funding for disaster resilience – invests just $200 million a year in grants to support disaster preparedness and resilience building. This is despite the Government’s own National Emergency Management Agency (NEMA) estimating that for every dollar spent on disaster risk reduction, there is a $9.60 return on investment.

By redirecting funds currently spent on subsidising fossil fuel production, the Government can both stop incentivising climate destruction in the first place, and ensure that Australian communities and industries are better protected from worsening climate extremes.

No communities have more to lose from climate damage, or carry more knowledge of practical solutions, than Aboriginal and Torres Strait Islander peoples. The budget should include a dedicated First Nations climate adaptation fund, ensuring First Nations communities can develop solutions on their own terms, and access the support they need with adapting to extreme heat, coastal erosion and other escalating challenges.

6. Be a better neighbour

The global response to climate change depends on the adequate flow of support from developed economies like Australia to lower income nations with shifting to clean energy, adapting to the impacts of climate change, and addressing loss and damage.

Such support is vital to building trust and cooperation, reducing global emissions, and supporting regional and global security by enabling countries to transition away from fossil fuels and build greater resilience.

Despite its central leadership role in this year’s global climate negotiations, our Government is yet to announce its contribution to international climate finance for 2025-2030. Greenpeace recommends a commitment of $11 billion for this five year period, which is aligned with the global goal under the Paris Agreement to triple international climate finance from current levels.
This new commitment should include additional funding to address loss and damage from climate change and a substantial contribution to the Pacific Resilience Facility, ensuring support is accessible to countries and communities that need it most. It should also see Australia get firmly behind the vision of a Fossil Fuel Free Pacific.

7. Protect nature

Rainforest in Tasmania. © Markus Mauthe / Greenpeace
Rainforest of north west Tasmania in the Takayna (Tarkine) region. © Markus Mauthe / Greenpeace

There is no safe planet without protection of the ecosystems and biodiversity that sustain us and regulate our climate.

Last year the Parliament passed important and long overdue reforms to our national environment laws to ensure better protection for our forests and other critical ecosystems. However, the Government will need to provide sufficient funding to ensure the effective implementation of these reforms.

Greenpeace has recommended $500 million over four years to establish the National Environment Agency — the body responsible for enforcing and monitoring the new laws — and a further $50 million to Environment Information Australia for providing critical information and tools.

Further resourcing will also be required to fulfil the crucial goal of fully protecting 30% of Australian land and seas by 2030. This should include $1 billion towards ending deforestation by enabling farmers and loggers to retool away from destructive practices, $2 billion a year for restoring degraded lands, $5 billion for purchasing and creating new protected areas, and $200 million for expanding domestic and international marine protected areas.

Conclusion

This is not the first time that conflict overseas has triggered an energy crisis, or that a budget has been preceded by a summer of extreme weather disasters, highlighting the urgent need to phase out fossil fuels. What’s different in 2026 is the availability of solutions. Renewable energy is now cheaper and more accessible than ever before. Global momentum is firmly behind the transition away from fossil fuels. The Albanese Government, with its overwhelming majority, has the chance to set our nation up for the future, or keep us stranded in the past. Let’s hope it makes some smart choices.

The 2026 budget test: Will Australia break free from fossil fuels?

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Climate Change

What fossil fuels really cost us in a world at war

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Anne Jellema is Executive Director of 350.org.

The war on Iran and Lebanon is a deeply unjust and devastating conflict, killing civilians at home, destroying lives, and at the same time sending shockwaves through the global economy. We, at 350.org, have calculated, drawing on price forecasts from the International Monetary Fund (IMF) and Goldman Sachs, just how much that volatility is costing us. 

Even under the IMF’s baseline scenario – a de facto “best case” scenario with a near-term end to the war and related supply chain disruptions – oil and gas price spikes are projected to cost households and businesses globally more than $600 billion by the end of the year. Under the IMF’s “adverse scenario”, with prolonged conflict and sustained price pressures, we estimate those additional costs could exceed $1 trillion, even after accounting for reduced demand.

Which is why we urgently need a power shift. Governments are under growing pressure to respond to rising fuel and food costs and deepening energy poverty. And it’s becoming clearer to both voters and elected officials that fossil dependence is not only expensive and risky, but unnecessary. 

People who can are voting with their wallets: sales of solar panels and electric vehicles are increasing sharply in many countries. But the working people who have nothing to spare, ironically, are the ones stuck with using oil and gas that is either exorbitantly expensive or simply impossible to get.

Drain on households and economies

In India, street food vendors can’t get cooking gas and in the Philippines, fishermen can’t afford to take their boats to sea. A quarter of British people say that rising energy tariffs will leave them completely unable to pay their bills. This is the moment for a global push to bring abundant and affordable clean energy to all.

In April, we released Out of Pocket, our new research report on how fossil fuels are draining households and economies. We were surprised by the scale of what we found. For decades, governments have reassured people that energy price spikes are unfortunate but unavoidable – the result of distant conflicts, market forces or geopolitical shocks beyond anyone’s control. But the numbers tell a different story. 

    What we are living through today is not an energy crisis. It is a fossil fuel crisis. In just the first 50 days of the Middle East conflict, soaring oil and gas prices have siphoned an estimated $158 billion–$166 billion from households and businesses worldwide. That is money extracted directly from people’s pockets and transferred, almost instantly, into fossil fuel company balance sheets. And this figure only captures the immediate impact of price spikes, not the permanent economic drain of fossil dependence. Fossil fuels don’t just cost us once, they cost us over and over again.

    First, through our bills. Every time there is a war, an embargo or a supply disruption, fossil fuel prices surge. For ordinary people, this means higher costs for energy, transport and food. Many Global South countries have little or no fiscal space to buffer the shock; instead, workers and families pay the price.

    Second, through our taxes. Governments around the world continue to pour vast sums of public money into fossil fuel subsidies. These are often justified as a way to protect the most vulnerable at the petrol pump or in their homes. But in reality, the benefits are overwhelmingly captured by wealthier households and corporations. The poorest 20% receive just a fraction of this support, while public finances are drained.

    Third, through climate impacts. New research across more than 24,000 global locations gives a granular account of the true costs of extreme heat, sea level rise and falling agricultural yields. Using this data to update IMF modelling of the social cost of carbon, we found that fossil fuel impacts on health and livelihoods amount to over $9 trillion a year. This is the biggest subsidy of all, because these massive and mounting costs are not charged to Big Oil – they are paid for by governments and households, with the poorest shouldering the lion’s share. 

    Massive transfer of wealth to fossil fuel industry

    Adding up direct subsidies, tax breaks and the unpaid bill for climate damages, the total transfer of wealth from the public to the fossil fuel industry amounts to $12 trillion even in a “normal” year without a global oil shock. That’s more than 50% higher than the IMF has previously estimated, and equivalent to a staggering $23 million a minute.

    The fossil fuel industry has become extraordinarily adept at profiting from instability. When conflict drives up prices, companies do not lose, they gain. In the current crisis, oil producers and commodity traders are on track to secure tens of billions of dollars in additional windfall profits, even as households face rising bills and governments struggle to manage the fallout.

    Fossil fuel crisis offers chance to speed up energy transition, ministers say

    This growing disconnect is impossible to ignore. Investors are advised to buy into fossil fuel firms precisely because of their ability to generate profits in times of crisis. Meanwhile, ordinary people are told to tighten their belts.

    In 2026, unlike during the oil shocks of the 1970s, clean energy is no longer a distant alternative. Now, even more than when gas prices spiked due to Russia’s invasion of Ukraine in 2022, renewables are often the cheapest option available. Solar and wind can be deployed quickly, at scale, and without the volatility that defines fossil fuel markets.

    How to transition from dirty to clean energy

    The solutions are clear. Governments must implement permanent windfall taxes on fossil fuel companies to ensure that extraordinary profits generated during crises are redirected to support households. These revenues can be used to reduce energy bills, invest in public services, and accelerate the rollout of clean energy.

    Second, we must shift subsidies away from fossil fuels and towards renewable solutions, particularly those that can be deployed quickly and equitably, such as rooftop and community solar. This is not just about cutting emissions. It is about building a more stable, fair and resilient energy system.

    Finally, we need binding plans to phase out fossil fuels altogether, replacing them with homegrown renewable energy that can shield economies from future shocks. Because what the current crisis has made clear is this: as long as we remain dependent on fossil fuels, we remain vulnerable – to conflict, to price volatility and to the escalating impacts of climate change.

    The true price of fossil fuels is no longer hidden. It is visible in rising bills, strained public finances and communities pushed to the brink. And it is being paid, every day, by ordinary people around the world.

    It’s time for the great power shift

    Full details on the methodology used for this report are available here.

    The Great Power Shift is a new campaign by 350.org global campaign to pressure governments to bring down energy bills for good by ending fossil fuel dependence and investing in clean, affordable energy for all

    Logo of 350.org campaign on “The Great Power Shift”

    Logo of 350.org campaign on “The Great Power Shift”

    The post What fossil fuels really cost us in a world at war appeared first on Climate Home News.

    What fossil fuels really cost us in a world at war

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    Climate Change

    Traditional models still ‘outperform AI’ for extreme weather forecasts

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    Computer models that use artificial intelligence (AI) cannot forecast record-breaking weather as well as traditional climate models, according to a new study.

    It is well established that AI climate models have surpassed traditional, physics-based climate models for some aspects of weather forecasting.

    However, new research published in Science Advances finds that AI models still “underperform” in forecasting record-breaking extreme weather events.

    The authors tested how well both AI and traditional weather models could simulate thousands of record-breaking hot, cold and windy events that were recorded in 2018 and 2020.

    They find that AI models underestimate both the frequency and intensity of record-breaking events.

    A study author tells Carbon Brief that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    AI weather forecasts

    Extreme weather events, such as floods, heatwaves and storms, drive hundreds of billions of dollars in damages every year through the destruction of cropland, impacts on infrastructure and the loss of human life.

    Many governments have developed early warning systems to prepare the general public and mobilise disaster response teams for imminent extreme weather events. These systems have been shown to minimise damages and save lives.

    For decades, scientists have used numerical weather prediction models to simulate the weather days, or weeks, in advance.

    These models rely on a series of complex equations that reproduce processes in the atmosphere and ocean. The equations are rooted in fundamental laws of physics, based on decades of research by climate scientists. As a result, these models are referred to as “physics-based” models.

    However, AI-based climate models are gaining popularity as an alternative for weather forecasting.

    Instead of using physics, these models use a statistical approach. Scientists present AI models with a large batch of historical weather data, known as training data, which teaches the model to recognise patterns and make predictions.

    To produce a new forecast, the AI model draws on this bank of knowledge and follows the patterns that it knows.

    There are many advantages to AI weather forecasts. For example, they use less computing power than physics-based models, because they do not have to run thousands of mathematical equations.

    Furthermore, many AI models have been found to perform better than traditional physics-based models at weather forecasts.

    However, these models also have drawbacks.

    Study author Prof Sebastian Engelke, a professor at the research institute for statistics and information science at the University of Geneva, tells Carbon Brief that AI models “depend strongly on the training data” and are “relatively constrained to the range of this dataset”.

    In other words, AI models struggle to simulate brand new weather patterns, instead tending forecast events of a similar strength to those seen before. As a result, it is unclear whether AI models can simulate unprecedented, record-breaking extreme events that, by definition, have never been seen before.

    Record-breaking extremes

    Extreme weather events are becoming more intense and frequent as the climate warms. Record-shattering extremes – those that break existing records by large margins – are also becoming more regular.

    For example, during a 2021 heatwave in north-western US and Canada, local temperature records were broken by up to 5C. According to one study, the heatwave would have been “impossible” without human-caused climate change.

    The new study explores how accurately AI and physics-based models can forecast such record-breaking extremes.

    First, the authors identified every heat, cold and wind event in 2018 and 2020 that broke a record previously set between 1979 and 2017. (They chose these years due to data availability.) The authors use ERA5 reanalysis data to identify these records.

    This produced a large sample size of record-breaking events. For the year 2020, the authors identified around 160,000 heat, 33,000 cold and 53,000 wind records, spread across different seasons and world regions.

    For their traditional, physics-based model, the authors selected the High RESolution forecast model from the Integrated Forecasting System of the European Centre for Medium-­Range Weather Forecasts. This is “widely considered as the leading physics-­based numerical weather prediction model”, according to the paper.

    They also selected three “leading” AI weather models – the GraphCast model from Google Deepmind, Pangu-­Weather developed by Huawei Cloud and the Fuxi model, developed by a team from Shanghai.

    The authors then assessed how accurately each model could forecast the extremes observed in the year 2020.

    Dr Zhongwei Zhang is the lead author on the study and a researcher at Karlsruhe Institute of Technology. He tells Carbon Brief that many AI weather forecast models were built for “general weather conditions”, as they use all historical weather data to train the models. Meanwhile, forecasting extremes is considered a “secondary task” by the models.

    The authors explored a range of different “lead times” – in other words, how far into the future the model is forecasting. For example, a lead time of two days could mean the model uses the weather conditions at midnight on 1 January to simulate weather conditions at midnight on 3 January.

    The plot below shows how accurately the models forecasted all extreme events (left) and heat extremes (right) under different lead times. This is measured using “root mean square error” – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy.

    The chart on the left shows how two of the AI models (blue and green) performed better than the physics-based model (black) when forecasting all weather across the year 2020.

    However, the chart on the right illustrates how the physics-based model (black) performed better than all three AI models (blue, red and green) when it came to forecasting heat extremes.

    Accuracy of the AI models
    Accuracy of the AI models (blue, red and green) and the physics-based model (black) at forecasting all weather over 2020 (left) and heat extremes (right) over a range of lead times. This is measured using “root mean square error” (RMSE) – a metric of how accurate a model is, where a lower value indicates lower error and higher accuracy. Source: Zhang et al (2026).

    The authors note that the performance gap between AI and physics-based models is widest for lower lead times, indicating that AI models have greater difficulty making predictions in the near future.

    They find similar results for cold and wind records.

    In addition, the authors find that AI models generally “underpredict” temperature during heat records and “overpredict” during cold records.

    The study finds that the larger the margin that the record is broken by, the less well the AI model predicts the intensity of the event.

    ‘Warning shot’

    Study author Prof Erich Fischer is a climate scientist at ETH Zurich and a Carbon Brief contributing editor. He tells Carbon Brief that the result is “not unexpected”.

    He adds that the analysis is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    The analysis, he continues, is a “warning shot” against replacing traditional models with AI models for weather forecasting “too quickly”.

    AI models are likely to continue to improve, but scientists should “not yet” fully replace traditional forecasting models with AI ones, according to Fischer.

    He explains that accurate forecasts are “most needed” in the runup to potential record-breaking extremes, because they are the trigger for early warning systems that help minimise damages caused by extreme weather.

    Leonardo Olivetti is a PhD student at Uppsala University, who has published work on AI weather forecasting and was not involved in the study.

    He tells Carbon Brief that “many other studies” have identified issues with using AI models for “extremes”, but this paper is novel for its specific focus on extremes.

    Olivetti notes that AI models are already used alongside physics-based models at “some of the major weather forecasting centres around the world”. However, the study results suggest “caution against relying too heavily on these [AI] models”, he says.

    Prof Martin Schultz, a professor in computational earth system science at the University of Cologne who was not involved in the study, tells Carbon Brief that the results of the analysis are “very interesting, but not too surprising”.

    He adds that the study “justifies the continued use of classical numerical weather models in operational forecasts, in spite of their tremendous computational costs”.

    Advances in forecasting

    The field of AI weather forecasting is evolving rapidly.

    Olivetti notes that the three AI models tested in the study are an “older generation” of AI models. In the last two years, newer “probabilistic” forecast models have emerged that “claim to better capture extremes”, he explains.

    The three AI models used in the analysis are “deterministic”, meaning that they only simulate one possible future outcome.

    In contrast, study author Engelke tells Carbon Brief that probabilistic models “create several possible future states of the weather” and are therefore more likely to capture record-breaking extremes.

    Engelke says it is “important” to evaluate the newer generation of models for their ability to forecast weather extremes.

    He adds that this paper has set out a “protocol” for testing the ability of AI models to predict unprecedented extreme events, which he hopes other researchers will go on to use.

    The study says that another “promising direction” for future research is to develop models that combine aspects of traditional, physics-based weather forecasts with AI models.

    Engelke says this approach would be “best of both worlds”, as it would combine the ability of physics-based models to simulate record-breaking weather with the computational efficiency of AI models.

    Dr Kyle Hilburn, a research scientist at Colorado State University, notes that the study does not address extreme rainfall, which he says “presents challenges for both modelling and observing”. This, he says, is an “important” area for future research.

    The post Traditional models still ‘outperform AI’ for extreme weather forecasts appeared first on Carbon Brief.

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