Global warming of 2C would see “extensive, long-term [and] essentially irreversible” losses from the Earth’s ice sheets and glaciers, warns a new report.
It would also lead to polar oceans that are “ice-free” in summer and suffering “essentially permanent corrosive ocean acidification”, the report says.
The 2023 “state of the cryosphere” report from the International Cryosphere Climate Initiative (ICCI) lays out the impacts on Earth’s frozen land and seas from sustained warming at 2C and the “catastrophic global damage” that would result.
These impacts would include “potentially rapid, irreversible sea level rise from the Earth’s ice sheets”, the report says, with a “compelling number of new studies” all pointing to thresholds of sustained ice loss for both Greenland and parts of Antarctica at well-below 2C.
This would commit the world to “between 12 and 20 metres” of sea level rise “if 2C becomes the new constant”.
Holding global warming of 2C would also not be enough to “prevent extensive permafrost thaw”, the authors say, bringing additional warming from the resulting CO2 and methane emissions. A 2C world would also see “widespread negative impacts on key fisheries and species” in polar and near-polar oceans.
First published in 2021, the focus of this year’s annual review on how 2C of warming is “too high” shows that the aspirational limit of 1.5C in the Paris Agreement “is not merely preferable to 2C”, but “the only option”, the report says.
The ICCI’s Dr James Kirkham, chief science advisor at the Ambition on Melting Ice high-level group, tells Carbon Brief that the conclusion that 2C is too high for the cryosphere “won’t come as a surprise at all” to most scientists.
With COP28 in Dubai coming later this month, Kirkham says it is time to make “crystal clear” that “2C must now be seen as an unacceptable outcome for the world because of the impacts from the cryosphere”.
In this Q&A, Carbon Brief unpacks the report’s findings for the world’s ice sheets, mountain glaciers, permafrost, sea ice and polar oceans.
- How can ‘very low’ emissions slow impacts on the cryosphere?
- Is the ‘true guardrail’ for preventing dangerous sea level rise actually 1C?
- Is today’s climate already too warm to preserve some mountain glaciers?
- What impact could permafrost emissions have on the carbon budget?
- What are the prospects for sea ice at the Earth’s poles?
- What do rising temperatures and CO2 mean for the polar oceans?
How can ‘very low’ emissions slow impacts on the cryosphere?
Past emissions of CO2 and other greenhouse gases (GHGs) have “pushed the planet into a risk zone”, the report warns, with very visible impacts on the cryosphere:
“Today’s 1.2C above pre-industrial already has caused massive drops in Arctic and Antarctic sea ice; loss of glacier ice in all regions across the planet; accelerating loss from both the Greenland and Antarctic ice sheets; extensive permafrost thaw; and rising polar ocean acidification.”
The implications of these changes stretch beyond the Earth’s poles and mountain regions, the authors note, from accelerating sea level rise and disturbed ocean currents to declining water resources and greater carbon emissions.
Nearly all of these changes “cannot be reversed on human timescales”, the authors warn, and they will continue to grow with each additional 10th of a degree of temperature rise.
Kirkham likens the way the cryosphere responds to warming to a “bowling ball once thrown”. He tells Carbon Brief:
“The changes will continue to roll on long after its initial climatic push because the system has momentum.
“[This means] that many of the long-term challenges associated with the cryosphere are on the cusp of being locked in by decisions made by policymakers in the next few years, and the awareness in the policy world of this ‘lock in’ appears lost right now.”
While the aim of restricting global warming to “well-below” 2C is set out in the Paris Agreement, the report says the “physical reality” of the cryosphere’s response to warming means these changes “would become devastating” well before 2C is reached.
However, warming of 2C is not a “predetermined outcome”, the authors say, arguing that “only a strong, emergency scale course-correction towards 1.5C…can avert higher temperatures, to slow and eventually halt these cryosphere impacts within adaptable levels”.
A “very low” future emissions pathway that would keep warming within, or very close to, 1.5C – the more stringent part of the Paris goal – remains “physically, technologically and economically feasible”, the report says.
This is the “SSP1-1.9” pathway from the set of Shared Socioeconomic Pathways (SSPs) used in the sixth assessment report (AR6) of the Intergovernmental Panel on Climate Change (IPCC).
Under this pathway (see table below), fossil fuel emissions decline 40% by 2030 and global warming peaks at 1.6C before declining to around 1.4C by the end of the century.
| Emissions pathway | Pathway name | Median global warming in 2100 | CO2 levels in 2100 (parts per million) |
|---|---|---|---|
| Very low | SSP1-1.9 | 1.4C (after brief 1.5C overshoot) | 440 ppm |
| Low | SSP1-2.6 | 1.8C (and declining) | 450 ppm |
| Intermediate | SSP2-4.5 | 2.7C (and rising) | 650 ppm |
| High | SSP3-7.0 | 3.6C (and rising) | 800 ppm |
| Very high | SSP5-8.5 | 4.4C (and rising) | 1,000+ ppm |
IPCC AR6 emissions pathways. Credit: ICCI (2023)
Under very low emissions, the Earth’s cryosphere would “generally [begin] to stabilise in 2040-80”, the report says:
“Slow CO2 and methane emissions from permafrost continue for one-two centuries, then cease. Snowpack stabilises, though at lower levels than today. Steep glacier loss continues for several decades, but slows by 2100; some glaciers still will be lost, but others begin to show regrowth. Arctic sea ice stabilises slightly above complete summer loss. Year-round corrosive waters for shelled life are limited to scattered polar and near-polar regions for several thousand years.”
In addition, while “ice sheet loss and sea level rise will continue for several hundred to thousands of years due to ocean warming”, the authors say, it will “likely not exceed three metres globally and occur over centuries”.
All other emissions pathways, including “low” emissions where warming peaks at 1.8C, would “result in far greater committed global loss and damage from [the] cryosphere, continuing over several centuries”, the report warns.
Is the ‘true guardrail’ for preventing dangerous sea level rise actually 1C?
The Earth’s ice sheets on Greenland and Antarctica together hold enough ice to raise global sea levels by 65 metres. The risks of significant amounts of this ice being lost irreversibly on human timescales “increase as temperature and rates of warming rise”, the authors say.
When the ice sheets are in equilibrium, melting ice and the breaking off of icebergs are balanced by mass gain through snowfall. However, “observations now confirm that this equilibrium has been lost” on Greenland, West Antarctica, the Antarctic Peninsula and potentially for portions of East Antarctica, the report says.
This is illustrated in the maps below, which show the gain (blue) and loss (red) in ice on Greenland (left) and Antarctica (right) between 2003 and 2019.
Today, the loss of ice from Greenland is “three times what it was 20 years ago”, the report notes, while Antarctica’s contribution to sea level rise is “six times greater than it was 30 years ago”.
The report paints a bleak picture for the future of both ice sheets. It notes that a “compelling number of new studies” all point to thresholds where irreversible melt becomes inevitable for both Greenland and parts of Antarctica at well below 2C of warming.
This means that were 2C of warming to become “the new constant Earth temperature”, the planet would be committed to between 12 and 20 metres of sea level rise.
For example, evidence from proxy data suggests that, in Earth’s distant past, such thresholds have occurred at around 1C for West Antarctica and the Antarctic Peninsula and between 1.5C and 2C for Greenland, the report says. (These contain enough ice to raise sea levels by around five and seven metres, respectively.) It adds:
“It should be noted that changes around past thresholds were driven by slow increases in atmospheric greenhouse gases, but were paced by slow changes in Earth’s orbit – unlike today’s rapid, human-caused rates of change.”
As a result, “many ice sheet scientists now believe that by 2C, nearly all of Greenland, much of West Antarctica, and even vulnerable portions of East Antarctica will be triggered to very long-term, inexorable sea level rise”.
This occurs because a warmer ocean “will hold heat longer than the atmosphere”, in addition to “a number of self-reinforcing feedback mechanisms, so that it takes much longer for ice sheets to regrow (tens of thousands of years) than to lose their ice”.
This means that “once ice sheet melt accelerates due to higher temperatures, it cannot be stopped or reversed for many thousands of years” – even if temperatures stabilise or even decrease should the world reduce carbon emissions to net-zero, the authors warn.
Lowering sea level rise from newly reached highs would thus “not occur until temperatures go well below pre-industrial, initiating a slow ice sheet regrowth”, the report says:
“Overshooting the Paris Agreement [goal] would therefore cause essentially permanent loss and damage to the Earth’s ice sheets, with widespread impacts that are not reversible on human timescales.”
The report includes the chart below from a 2023 study, which highlights the long-term consequences of global warming. It shows projected global temperature change (top) and the implications for sea level rise (bottom) out to 2150 under four different SSPs.
Under “intermediate” emissions (SSP2-4.5, pink line), which most closely matches the path that the world is on today, sea levels continue to rise. Only “very low” emissions (SSP1-1.9, blue line) would slow and stabilise sea level rise, the report says, “preserving many coastal communities and giving others time to adapt”.
In the face of this evidence, “for a growing number of ice sheet experts”, the true “guardrail” to prevent dangerous levels and rates of sea level rise is “not 2C or even 1.5C, but 1C above pre-industrial”, the report concludes.
Staying as close as possible to the 1.5C limit will “allow us to return more quickly to the 1C level”, the authors say, “drastically slowing global impacts from ice sheet loss and especially West Antarctic ice sheet collapse”.
This would “reduce the risk of locking in significant amounts of long-term, irreversible sea level rise”, the report says. It would also “provide low-lying nations and communities more time to adapt through sustainable development, although some level of managed retreat from coastlines in the long-term is tragically inevitable”.
For world leaders, not committing to reducing emissions in line with the 1.5C limit is “de facto making a decision to erase many coastlines, displacing hundreds of millions of people – perhaps much sooner than we think”, the authors warn.
Is today’s climate already too warm to preserve some mountain glaciers?
Nearly all glaciers in the north Andes, east Africa and Indonesia – along with most mid-latitude glaciers outside the Himalaya and polar regions – could disappear if the 2C warming threshold is breached, the report warns.
Many of these glaciers are “disappearing too rapidly to be saved” even in the present climate and could be gone by 2050, while those large enough to survive the century have “already passed a point of no return”, according to the report’s latest projections.
The figure below shows projections of how much ice glaciers in tropical regions would retain, on average, over the next few centuries under different warming levels in 2100. The lines show the impact of warming by 10ths of a degree between 1.4C and 3C.
At 2C, even the Himalayas are slated to lose around half of today’s ice on average, the report estimates. In a very high emissions scenario, 70-80% of the current glacier volume in the Hindu Kush Himalaya could disappear by 2100, the report says, while low emissions would limit glacier loss to 30%.
Without human-induced warming, glaciers in the northern Andes could have served as a reliable source of water for “hundreds of thousands” of years, the report states. Their loss stands to particularly impact villages in northern Peru, Chile and Bolivia and major cities such as La Paz.
This threat to water security is “one of the greatest challenges posed by a melting cryosphere in a 2C world”, Dr Kirkham tells Carbon Brief, “especially in Asia where freshwater sourced from snow and ice provides a lifeline to over 2 billion people”. He adds:
“This loss of water will even impact some downstream countries that do not contain any snow and ice at all, such as Bangladesh, especially in years when the timing of the monsoon is unreliable.”
Mid-latitude glaciers in the Alps, the Rockies, the southern Andes, Patagonia, Scandinavia and New Zealand are also seeing severe losses.
The report quotes new findings in 2023 showing that the Swiss Alps lost 10% of its glacial ice in just two years over 2022-23, attributed especially to heatwaves, while the Andes witnessed “what may have been the most extreme heatwave on the planet in 2023” in winter.
Warmer temperatures at higher altitudes mean what should be snow is now falling as hazardous extreme rainfall, while other mountain areas face “snow droughts”.
The report finds that most glacier-covered regions outside the Himalaya and the poles have already passed a period of “peak water”, a point at which water availability will only decline each season.
Recovering lost glaciers could take hundreds to thousands of years and temperatures well below the records being set today, the authors note.
However, a low emissions scenario could limit glacier loss in the Himalaya to 30%, with steeper emission cuts stabilising high mountain Asia’s snowpack and glaciers. Some glaciers could eventually even begin to return, the report says.
Rapid cuts consistent with 1.5C of warming could preserve twice as much ice in Central Asia and the southern Andes, the report estimates.
This could benefit vulnerable communities that depend most on glacial water runoff for drinking water and subsistence agriculture while buying them time to adapt to dangerous climate impacts. For instance, one study cited by the report estimates that 15 million people across the world and especially in high mountain Asia and Peru are at risk of glacial lake outburst floods (GLOFs).
A very low emissions pathway could have benefits for cities and economies beyond agriculture, the report notes. The megacities of Delhi, Los Angeles, Marrakech and Kathmandu are all dependent on meltwater, to a degree, while new research shows growing climate-driven threats to hydropower projects in high mountain Asia due to retreating glaciers, thawing permafrost, GLOFs, avalanches and landslides.
Dealing with the changing water supply from glaciers and snow “may render many of these investments defunct before some of the projects are completed”, warns Kirkham.
Countries including Japan, the US and Switzerland also stand to lose significant revenues from snow-based tourism, while also being exposed to increased risk of wildfires and mudslides linked to the lack of snow cover.
The figure below contrasts the state of Switzerland’s Great Aletsch glacier today – the largest glacier in the Alps – with projections under current emissions and very low emissions scenarios in 2060 and 2100.
However, if warming were limited to 1.5C, the annual snowpack could stabilise – even if at a lower average amount than today. It adds:
“This visible snow and ice preservation, and its benefits for freshwater resources, may be one of the earliest and visible signs to humanity that steps towards low emissions have meaningful results.”
Dr Miriam Jackson, senior cryosphere specialist at the International Centre for Integrated Mountain Development (ICIMOD) and author on the mountain glaciers chapter of the report, tells Carbon Brief:
“This latest cryosphere report shows, more clearly than ever, that we have a choice. We can continue as we are now and see 80% of glacier loss by the end of this century. Or we can follow a very low emissions pathway, where glaciers and snow cover in high mountain Asia stabilise and eventually begin to return. Millions of people’s livelihoods depend on us making the second choice.”
What impact could permafrost emissions have on the carbon budget?
A global temperature rise of 2C – “and even 1.5C” – is too high to prevent the widespread thawing of an icy layer spread across more than one-fifth of the northern hemisphere’s land, the report says.
Permafrost is a mixture of soil, rock and other materials on or under the Earth’s surface that has been frozen for at least two years. It stores a huge amount of ancient, organic carbon.
Research shows that permafrost areas are rapidly warming and, as a result, thawing. This process releases some of the stored carbon into the atmosphere as CO2 and methane, further fuelling global warming. This is known as a “positive feedback”.
“These emissions are irreversibly set in motion”, the report says, and will not slow for one-to-two centuries even if permafrost re-freezes at a later point.
This means that permafrost emissions can further diminish the remaining global “carbon budget” – the amount of CO2 that can still be released while keeping warming below global limits of 1.5 or 2C.
The report says that carbon budget calculations “must take these indirect human-caused emissions from permafrost thaw into account…not just through [to] 2100, but well into the future”. It adds:
“Permafrost emissions today and in the future are on the same scale as large industrial countries, but can be minimised if the planet remains at lower temperatures.”
The chart below shows the impact of permafrost emissions (pink shaded areas) on the remaining carbon budget (red bars) to stay within 1.5C and 2C of warming. Taking permafrost emissions into account significantly reduces the budget estimates, the report says.
Prof Julie Brigham-Grette, the geosciences graduate programme director at the University of Massachusetts Amherst and author on the report, says she is “very concerned” about permafrost thaw. She tells Carbon Brief:
“The bottom line is that we must reduce fossil fuel use urgently to slow down the demise of glaciers, ice sheets, permafrost, snow cover, sea ice…The climate crisis is real and it’s a threat-multiplier to social and political systems around the world.”
Currently, at 1.2C of warming, the annual emissions from permafrost are about the same as Japan – the sixth largest emitting country, based on 2019 figures, the report says.
Keeping temperatures below 1.4C would prevent “most additional new thaw”, the report says. But even at 1.5C, scientists predict a 40% loss of near-surface permafrost areas by 2100.
At a 2C global temperature rise, permafrost thawing and associated emissions would continue to climb.
At temperatures of 3C or higher by the end of this century, “much of the Arctic, and nearly all mountain” permafrost would reach the “thawed state”, where it would produce the equivalent of the combined annual GHG emissions of the US and the EU in 2019, for centuries, the report says.
As much as half of recent permafrost thaw occurred during extreme temperature events that were up to 12C above average, the authors say.
But the report notes that current global climate models do not include these “abrupt thaw” processes in their predictions. Scientists are “still working on these phenomena and what it means for emission rates”, Brigham-Grette says.
Studies analysed in the report found that, overall, permafrost thaw will have a number of “cascading impacts” with “severe” effects already being felt in the Arctic. The report adds:
“Thawing permafrost is causing the loss of Arctic lands, threatening cultural and subsistence resources, and damaging infrastructure, like roads, pipelines and houses, as the ground sinks unevenly beneath them.”
The “only means available” to reduce the problem is to “keep as much permafrost as possible in its current frozen state” and limiting global warming to 1.5C, according to the report.
What are the prospects for sea ice at the Earth’s poles?
Sea ice at the Earth’s poles undergoes an annual cycle of melting and regrowth. In the Arctic, sea ice melts during the warmer summer months towards its September minimum, before regrowing in the colder winter months. However, as the planet warms, sea ice extent at the September minimum is declining.
The area of Arctic sea ice that “survives” the summer has declined by at least 40% since 1979, the report says. Furthermore, it says, the Arctic ocean has “become dominated by a thinner, faster moving covering of seasonal ice, which typically doesn’t survive the summer”, as opposed to thick, multiyear sea ice.
The authors add:
“Ninety percent of Arctic sea ice loss can be directly attributed to anthropogenic emissions. A threshold has now been crossed in which ice-free conditions in the month of September will occur at times even with very low emissions, and with much slower and later surface freeze-up.”
There is widespread public and scientific interest in when the Arctic might see its first “ice-free” summer. The report highlights a recent study that suggests Arctic sea ice is more sensitive to GHG emissions than was described in the IPCC AR6 report.
The figure below shows projections of September Arctic sea ice area for different emissions scenarios. The different coloured lines indicate different models and the horizontal red line shows the threshold for a “practically ice-free” Arctic, which is one million square kilometres of ice. The lowest emission scenario is shown on the left and the highest emission scenario on the right.
The graphic shows that only the SSP1-1.9 scenario results in “sea ice recovery above ice-free conditions”. At 2C warming, the Arctic Ocean will be sea ice-free in summer “almost every year”, the report says.
The report concludes that the occurrence of the first ice-free Arctic summer is “unpredictable”, but “inevitable”, adding that it is likely to occur at least once before 2050 even under a “very low” emissions scenario.
Dr Zachary Labe is a postdoctoral research associate at the NOAA Geophysical Fluid Dynamics Laboratory and the Atmospheric and Oceanic Sciences Program at Princeton University, and was not involved in writing the report.
He praises the report, but adds:
“There are countless studies that have evaluated future Arctic sea ice trajectories using models and emergent constraint-like methods, so I advise caution in overly relying on mostly one new study.”
At the Earth’s other pole, Antarctic sea ice saw record-breaking melt in 2023 setting a summer minimum in February 2023. “The unprecedented reduction in Antarctic sea ice extent since 2016 represents a regime shift to a new state of inevitable decline caused by ocean warming,” the authors say.
According to the report, sea ice projections around Antarctica are “considerably less certain” than those in the Arctic. However, the authors say the record-low conditions in 2023 “indicate that its threshold for complete summer sea ice loss might be even lower than for the Arctic”.
The authors also highlight recent research that found thousands of emperor penguin chicks died because of the early breakup of Antarctic sea ice in 2022.
“Perhaps more so than for any other part of the cryosphere, 2C is far too high to prevent extensive sea ice loss at both poles, with severe feedbacks to global weather and climate,” the authors conclude.
What do rising temperatures and CO2 mean for the polar oceans?
The world’s oceans absorb around one-quarter of all human-produced CO2, which reacts with seawater to produce a weak acid in a process called ocean acidification.
Rates of ocean acidification are currently faster than they have been at any point in the past 300m years, the report finds. Polar waters in the Arctic and Southern oceans have absorbed up to 60% of the carbon taken up by the world’s oceans so far, because colder and fresher waters can hold more carbon, it notes, adding:
“The Arctic Ocean appears to be most sensitive: already today, it has large regions of persistent corrosive waters.”
In 2008, a group of scientists identified atmospheric CO2 levels of 450 parts per million (ppm) as an important threshold for “serious global ocean acidification”, according to the report. This atmospheric CO2 threshold corresponds to around 1.5C warming, it says.
However, it says that current national pledges to reduce emissions under the Paris Agreement – even if completely fulfilled – will result in CO2 levels above 500ppm, resulting in temperatures of around 2.1C.
The maps below show ocean acidification in scenarios of 3-4C (top) and a 1.5C (bottom) of warming by 2100. Red shading shows “undersaturated aragonite conditions” – a measure of ocean acidification meaning that shelled organisms have difficulty building or maintaining their shells. Darker red indicates greater levels of ocean acidification.
“There is currently no practical way for humans to reverse ocean acidification,” the authors warn, adding that it will take some 30-70,000 years to bring acidification and its impacts back to pre-industrial levels.
As polar oceans become more acidic, they are also warming at an “unusually rapid” rate, the report warns. The authors note that since 1982, summer surface water temperatures in the Arctic have increased by around 2C – mainly due to sea-ice loss that allows the sun’s rays to hit the water, and an inflow of warmer water from lower latitudes.
The map below shows the change in sea surface temperature over 1993-2021. Red indicates warming and blue indicates cooling, while the white at the highest polar latitudes is due to incomplete data for this period.
The map shows that near-polar waters such as the Barents Sea have warmed “extensively” over the past two decades. The colder patch in the south of Greenland is an exception which is partly due to cold freshwater being added as the Greenland ice sheet melts, it adds.
The authors add that increased run-off from glaciers, ice sheets and rivers is also affecting global ocean circulation, which could stall ocean currents such as the Atlantic Meridional Overturning Circulation (AMOC).
The report also warns that the dual impacts of ocean acidification and warming could have severe impacts for polar biodiversity, adding that “polar waters contain some of the world’s richest fisheries and most diverse marine ecosystems”.
Over the past decade, many polar species have experienced “lethal” temperatures which have caused mass-die offs, the report warns.
It also highlights the dangers of ocean acidification, including harm to key ocean-dwelling organisms which could “cascade” up the food chain. “Compound events combining marine heatwaves and extreme acidification have already caused population crashes even at today’s 1.2C,” the authors say.
The report concludes:
“2C will result in year-round, essentially permanent corrosive conditions in extensive regions of Earth’s polar and some near-polar seas; with widespread negative impacts on key fisheries and species.”
The post Q&A: Warming of 2C would trigger ‘catastrophic’ loss of world’s ice, new report says appeared first on Carbon Brief.
Q&A: Warming of 2C would trigger ‘catastrophic’ loss of world’s ice, new report says
Layers of red dust coat South Africa’s Saldanha Bay, a legacy of the one billion-plus tonnes of iron ore exported from what was once a quiet coastal fishing town in the 1970s. Now the government wants to turn this area into the “oil and gas hub of South Africa”, but opposition from local communities and civil society could force a change of plan.
Since 2014 South Africa has developed a strategy for taking “full advantage” of its marine resources, known as Operation Phakisa. It has resulted in the mapping of more than 95% of the country’s nearly 3,000-kilometre coastline for offshore oil and gas exploration.
The plan seeks to “drill 30 exploration wells in 10 years”, which it estimates could lead to the production of an average of 370,000 barrels of oil and gas per day over 20 years, with Saldanha Bay earmarked as a key logistics hub. It also aims to develop other marine sectors like aquaculture, maritime transport and ocean tourism.
However, two major court cases against the government and oil giants Shell and TotalEnergies have challenged those plans, as coastal residents, allied with national civil society groups, have pushed back against oil concessions held by the multinationals, arguing they were not consulted, and that towns like Saldanha Bay could face social and environmental harms from the fossil fuel extraction.
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Melissa Groenink-Groves, programme manager at legal nonprofit Natural Justice, said the cases in South Africa could set a precedent for the whole region. “When communities win in the courts, the successes serve as inspiration for other communities to advocate [for] their rights in their own contexts,” she explained.
She added that the legal challenges to Operation Phakisa also develop climate litigation in the African context, and could impact how environmental impact assessments are conducted going forward.
Globally, as the oil and gas industry sets its sights on the ocean, with over 85% of new discoveries in 2024 made offshore, scientists and activists warn it could threaten marine life and coastal communities, and weaken the ocean’s ability to trap excess heat from the atmosphere, fuelling planetary warming further.
Taking oil companies to court
About 300 kilometres north of Saldanha Bay, the Aukotowa Fisheries Cooperative, backed by nonprofits The Green Connection and Natural Justice, has taken TotalEnergies to court over its plans to drill for oil and gas in a 30,000-square-kilometre block off South Africa’s west coast.
The oil exploration block is in a biodiverse marine area bordering Namibia and South Africa known as the Orange Basin, which is a “highly relevant” sanctuary for endangered species, according to Nelson Mandela University’s Institute for Coastal and Marine Research.
Among other grievances, the cooperative maintains that the company’s environmental impact assessment was flawed, failing to consider the project’s contribution to climate change, and that the government “placed the profits of a multinational corporation above the livelihoods of vulnerable coastal communities”. The Western Cape High Court concluded hearings in late March and is expected to deliver a ruling later this year.
Walter Steenkamp, chairperson of the Aukotowa Cooperative, is concerned that the oil and gas drilling will lead to increased inequality, asking “for whom is the development? Definitely not for us.”
In a written statement, TotalEnergies told Climate Home News that it “is a responsible operator fully committed to complying with all applicable South African legislation”.
Southeast Asia’s fragile grids threaten billions in clean energy investment
Communities and climate impacts at stake
On the other side of the country, along South Africa’s eastern coastline, community-based nonprofit Sustaining the Wild Coast and partner organisations challenged Shell and Impact Africa’s exploration permit, arguing that the firms had failed to consult impacted communities – a legal requirement under South African law.
Co-plaintiff Sinegugu Zukulu also said in 2022 that “oil and gas will lead to more emissions, and in the face of climate change, this is wholly irresponsible”.
Following two rulings against the companies by lower courts, the case is now before South Africa’s highest Constitutional Court, which has reserved judgment since September 2025. A ruling against the companies would be final, effectively ending the exploration permit.
Legal expert Groenink-Groves said oil exploration applications under Operation Phakisa have been “granted largely without properly assessing the devastating impact an oil spill could have on small-scale fishers, the risks of drilling in ultra-deep waters, [and] without accounting for climate change impacts associated with oil and gas exploitation”.
She added that exploration applications have often failed to consider coastal management laws and in some cases, cross-border and regional environmental risks.
Shell and South Africa’s Department of Mineral and Petroleum Resources did not respond to written requests for comment.
South Africa’s offshore oil ambitions
Fishers around South Africa, many of whom have for generations relied on marine resources for survival, say the country’s offshore oil and gas push is sacrificing their livelihoods for profit.
“Why do they want to destroy our heritage? We can’t afford to say yes to oil and gas because the ocean is our source of life,” said Carmelita Mostert, a member of advocacy group Coastal Links and third-generation Saldanha Bay fisher.
Yet with unemployment above 30%, alongside high levels of poverty and wealth inequality, the government sees Operation Phakisa as a vehicle for socioeconomic development.
South Africa’s Minister of Mineral and Petroleum Resources Gwede Mantashe has described the court cases as “anti-development”, and claimed that the environmental organisations are funded by the CIA.
Sifiso Dladla, a campaigner with human rights organisation groundWork, argued that the close relationship between the government and the fossil fuel industry – including its 3% contribution to gross tax revenue – limits the potential success of movements pushing for an inclusive energy system. Politicians “need money to win elections. Mining companies need the government to protect them,” he said.
Patrick Bond, a political economist and sociology professor at the University of Johannesburg, said Operation Phakisa only makes economic sense if its social and environmental harms are ignored, adding that “if a genuine social cost of carbon analysis were done in any African fossil fuel project, there would be few – if any – able to justify the projects economically”.
At a global scale, Bond said oil multinationals have the financial backing of European governments – including France’s $2.8 billion stake in TotalEnergies – which can help make local resistance more effective where it has international allies to amplify the messages.
For Saldanha Bay fisher Mostert, the fight is about protecting the livelihoods of coastal communities. “It is my hope that we can stand strong and protest,” she said. “If oil and gas is not allowed, our lives will be much easier and better – but if oil and gas goes ahead we will be in absolute agony.”
The post South Africa’s offshore oil push meets grassroots resistance in court appeared first on Climate Home News.
South Africa’s offshore oil push meets grassroots resistance in court
Climate Change
Millions of kilograms of marine life taken from Australia’s marine protected areas every year, FOI finds
SYDNEY, Tuesday 11 August 2026 — New data obtained by Greenpeace Australia Pacific has found millions of kilograms of marine life are being taken from Australian marine parks by commercial fishers annually, as the government begins its review of the country’s Marine Parks Network.
The data, released to Greenpeace in response to a Freedom of Information request, relates to 18 of Australia’s 60 Commonwealth marine parks, and shows almost 2.2 million kg of marine life is being fished each year, raising concerns about the true catch numbers across all marine protected areas.
Greenpeace is calling for the Labor government to use the once-in-a-decade Marine Parks Network review, announced last fortnight, to ban industrial activities, including bottom trawling, longlining and oil and gas mining, from Australia’s Marine Parks Network, and increase fully-protected ocean sanctuaries within the network.
Elle Lawless, Senior Campaigner at Greenpeace Australia Pacific, said:
“It’s chilling to think of the true scale of destruction happening inside all of Australia’s marine parks, and how much of our precious ocean wildlife, like dolphins, turtles or seabirds, could be pulled out of protected areas as bycatch.
“We’re talking about 6,600 kilograms of wildlife in one day, and that does not include what’s caught in the other 42 marine parks, many of which allow destructive fishing like longlining.
“Australia has made significant progress in securing 52% of its oceans in marine parks; however, this intent is undermined by zones that allow damaging industrial fishing activities, such as bottom trawling and longlining. The review of Australia’s Marine Parks Network is a critical opportunity to fix what isn’t working and finally give our oceans the real protection they deserve.
You wouldn’t expect someone to bulldoze a national park on land, so why should they be allowed to trawl in a marine park?”
“Greenpeace Australia Pacific welcomes the Albanese Government’s review of the Commonwealth Marine Parks Network as a rare opportunity to strengthen our marine parks and ban industrial fishing in Australia’s marine protected areas.”
The documents reveal that the south-west network has the largest catch volume, at 887,160kg per year, followed by the Coral Sea network, which extends out from the Great Barrier Reef, losing significant wildlife at 808,840kg annually.
—ENDS—
Notes:
- More than half of Australia’s Marine Parks Network allow extractive industries, including industrial fishing and oil and gas mining.
- The data, supplied by the Department of Agriculture, Fisheries and Forestry, does not specify how much of the catch is fish or bycatch, like non-target fish, turtles or seabirds, and is available on request.
- Read Greenpeace’s new report: Trawling the Bottom Line
Australia’s network of marine parks is the largest in the world, covering more than half (52%) of Australia’s Commonwealth waters. You could be forgiven for assuming that a marine park is much like a national park on land: a highly protected place where people can enjoy nature while conservation efforts help habitats recover and wildlife thrive. You wouldn’t expect someone to bulldoze a national park, so why should they be allowed to bottom trawl in a marine park?
The reality is that not all marine parks are equally protected. Australia’s Marine Parks Network is divided into different zoning categories, with each zone determining which activities are permitted and the level of protection provided.
More than half of the Commonwealth Marine Parks Network allows industrial activities like oil and gas mining, and industrial fishing.
Our survival, and the survival of our planet, depends on the ocean. The ocean produces more oxygen than all of our forests combined, sustains communities and regulates the earth’s temperature. It’s home to wondrous wildlife and important ecosystems like coral reefs and kelp forests.
We love our big blue backyard
Australia’s ocean is teeming with life that is found nowhere else on earth. Schools of colourful fish, vibrant coral reefs, endemic shark nurseries, pods of dolphins, families of whales, playful seal pups and threatened Jurassic-era turtles call Australian waters home.
Since time began, from the turquoise waves to the deep blue, the ocean has connected our shorelines and communities, fed us, guided us and grounded us. We are intrinsically connected to our big blue backyard – more than 85% of us live within 50km of the shoreline. For tens of thousands of years, people have lived in harmony with the ocean and the wildlife within it, caring for and being sustained by its rich waters. Australia’s waters are some of the most unique and abundant places on Earth but our Marine Parks Network is falling short to properly protect them.
Australia’s marine parks aren’t living up to their name
The Australian Commonwealth Marine Parks Network covers commonwealth waters 5.5km from the coast. The network is divided into 7 regional management areas, overall the network contains 60 marine parks. Zoning types determine what activities are allowed in each area. Over half of the network allows industrial activities, risking our most precious and threatened ocean wildlife.
Within many of our marine parks, destructive industries are allowed to fish, trawl, dig and mine using barbaric and cruel methods. Here are some of the zones explained:
- Bottom Trawling: Special Purpose (trawl) zones allow bottom trawling. This covers 10 marine parks totalling almost 13 million hectares. Bottom trawlers bulldoze the seafloor with weighted nets, deforesting our underwater forests; a cruel, indiscriminate and inefficient way to fish.
- Other Industrial Fishing: Includes “Habitat Protection Zones, ““Multi Use Zones” and “Special Purpose Zones.” Fishing methods vary from park to park but many marine parks in these zones allow industrial fishing like longlining. Longlining involves setting lines that can be 100km long, bristling with deadly hooks designed to catch a specific fish species. But longlining is not a selective method of fishing – significant numbers of sharks, rays, turtles, dolphins and seabirds can be harmed or killed as bycatch in the process.
- Oil and Gas Mining: Many “Special Purpose” and “Multi Use” zones allow seismic blasting and oil and gas mining. 30 marine parks or 65 million hectares of Australia’s highest conservation value areas for ocean wildlife are open for mining and exploration of oil and gas.
- Ocean Sanctuaries: National Park and Sanctuary zones are fully and highly protected marine parks designed to conserve wildlife and their habitat, where fishing, mining, and other industrial activities are not allowed.
Industrial fishing is one of the biggest threats to the ocean
In May, Greenpeace Australia Pacific sailed our campaigning vessel Oceania through some of Australia’s most beautiful and threatened marine parks. Our crew visited Jervis and Hunter marine parks to document their beauty, showcase what’s at risk and aim to expose the industrial fishing activities in these protected waters. Both of these marine parks allow bottom trawling and longlining methods of industrial fishing.
Industrial fishing is ripping the ocean apart across the planet. Longlining, also known as longline fishing, is an industrial fishing method that involves the use of a fishing line with thousands of baited hooks. These fishing lines can stretch over 100 kilometers in length and are set to capture a fish species, often tuna or billfish species. But it is not a selective method of fishing and often results in significant bycatch. This includes a range of non-target species like sharks, rays, sea turtles, marine mammals, and seabirds which are often injured or killed as bycatch.
Bottom trawling involves dragging heavy weighted nets along the ocean floor. This fishing method is popular with commercial fishing companies, because it makes it easy to catch large quantities of fish in one go. But it also damages the seafloor, releasing carbon and can kill or injure non-target ocean life like coral, fur seals, dolphins and seabirds. You may have watched the reality of bottom trawling (and the benefits of ocean sanctuaries) in Ocean with David Attenborough, if not, add it to your watch list!
Fully protected ocean sanctuaries that ban industrial fishing and mining can protect ocean wildlife and underwater wonderlands for generations to come. Vast, robust sanctuaries create blue havens where ocean wildlife are safe from nets and hooks, and can truly rest, recover, thrive and replenish out into the surrounding waters. Ocean sanctuaries ensure a healthy ocean full of life.
A once-in-a-decade chance to fix what’s falling short
We have a unique opportunity to turn the tide.
The Australian Government is asking for your feedback on how our Commonwealth Marine Parks Network is managed. This is our once-in-a-decade chance to protect ocean wildlife, ban industrial fishing and create more ocean sanctuaries.
As part of the review the Government is asking for submissions from the public to hear from you on what improvements are needed to better protect our vast network of marine parks. Writing a submission is a powerful way to influence government decisions and create real change.
This is the moment to ban industrial activities like bottom trawling and oil and gas mining. But only if they hear from YOU. Add your name!
Greenpeace is calling on the Australian government to:
1. Ban industrial activities from Australia’s Marine Parks Network: Ban industrial activities, such as industrial fishing, seismic blasting and oil and gas mining, from Australia’s marine parks.
2. Create more ocean sanctuaries: Increase fully protected sanctuaries in Australia’s marine parks based on science principles.
3. Connect Australia’s Marine Parks Network to the High Seas: mCreate seascape connectivity by linking Australian marine parks to new high seas ocean sanctuaries.
References
Substantiation that more than half of the Marine Parks Network permits industrial activity comes from a peer-reviewed systematic literature review (Phillips et al. 2025, PLOS One, https://doi.org/10.1371/journal.pone.0307324). The study found that within the Commonwealth Marine Parks Network specifically, “all zones are considered partially protected areas, meaning areas where extractive activities are permitted, except ‘Pink zones’ (Preservation Zones; IUCN Ia) and ‘Green Zones’ (IUCN II).” In other words, every Commonwealth marine park zone type other than the network’s strict no-take sanctuary and national park zones (IUCN Ia and II) permits some form of extractive industrial activity. Since no-take zones are the minority zone type across the network by area, this supports the conclusion that the majority of the network’s area is zoned to permit industrial activity.
DCCEEW Australian Marine Parks spatial dataset (https://fed.dcceew.gov.au/datasets/erin::australian-marine-parks/explore), filtered by zone type. This confirms that 38.43% of the network’s area is zoned as Sanctuary or National Park zones (IUCN Ia and II). These are the no-take categories excluded from the peer-reviewed study’s definition of partially protected/industrial-permitting zones. The remaining 61.57% of the network falls within the zone categories the study classifies as permitting industrial activity (per The MPA Guide definition of “industrial” applied in Phillips et al. 2025), directly corroborating the peer-reviewed finding with current Commonwealth-specific spatial data.
For further information on activities permitted within the Marine Parks Network Zoning, you can refer to the Management Plans zoning and rules for each Marine Parks Network area, for example: Temperate East, Coral Sea, North.
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