Resource-rich African nations risk missing out on the investment needed to extract and refine their mineral wealth into high-value products for the clean energy transition because they lack accurate information on what they have, experts are warning.

African countries have attracted huge interest as the world scrambles to access the minerals and metals needed for the energy transition and digital and military technologies, with investors from the US, China, the United Arab Emirates and Europe jostling to secure access to the continent’s resources. 

But any knowledge of Africa’s mineral wealth is, at best, an estimate based on century-old-mapping and haphazard geological data, policy experts and investors told Climate Home News. 

The United Nations says Africa is home to 30% of the world’s mineral reserves, including cobalt, copper, lithium and manganese, which are needed to manufacture batteries and other clean energy technologies.

But experts like Bright Simons, who tracks natural resource spending in Africa for the Ghana-based IMANI Centre for Policy and Education, said the 30% number is not backed by any “empirical, evidence-based assessment” of the continent’s mineral wealth. While some analysts like Simons think the figure could be an overestimate, others argue it is likely an underestimate of the continent’s mineral reserves.

Up-to-date and accurate data is critical for governments to negotiate better deals with prospecting mining companies and to help drive investment in mineral extraction and processing facilities that can add value to the continent’s resources.

But the lack of good mapping has negatively impacted the continent’s efforts to capture the economic benefits of booming mineral demand and to create jobs by extracting and processing raw materials into higher-value products before export, experts said.

Colonial maps

Under-exploration and scant information about Africa’s resources have made it challenging for states to attract investment and develop their resources, said Pritish Behuria, a political economist at the Global Development Institute at the UK’s University of Manchester.

“In many cases, former colonial powers retain more current knowledge of the kinds of mineral deposits that exist in African countries – and often, this has proven difficult to access for African governments,” he told Climate Home News.

Thabit Jacob, a researcher of extractive and energy resources at Roskilde University in Denmark, said many African countries “still rely on colonial maps”. 

“There’s a growing realisation that Africa must know its true value in mineral richness and investment in geological mapping is crucial,” he added.

Mapping inequality

However, mapping investment is falling short. Africa’s share of global exploration investment has fallen in the last two decades, data shows.

In 2024 alone, both Canada and Australia received significantly more investment in geological mapping than the whole of Africa, even though the continent’s landmass is three times the size of the two countries combined, according to the Center for Strategic and International Studies. 

Even in South Africa, a major mining destination, only 12% of the country has been mapped at a detailed level “which compares poorly with other popular mining destinations such as Canada and Australia where there is near complete coverage at similar scales”, explained Tania Marshall, of the Geological Society of South Africa.

Nigeria’s push to cash in on lithium rush gets off to a rocky start

To address the dearth in data, multinational institutions like the World Bank have provided African countries with finance for mapping, but have simultaneously encouraged them to liberalise and privatise their mining industries.

As a result, international investors prioritising project development have come to dominate the continent’s mining sector, crowding out state-sponsored initiatives with stronger incentives to invest in data-gathering, researchers have found.

Digging blind

Orina Chang, an investor leading geological mapping across Somaliland, which has reserves of copper and zinc ore, said she was surprised to find out that even countries attracting huge interest from institutional miners, such as the Democratic Republic of the Congo (DRC), do not have systematic up-to-date mapping.

Instead, mining firms rely on artisanal mining and surface signs, like exposed ores on the ground – and crossing their fingers, she told Climate Home News.

The mapping deficit means there is little certainty on the size and quality of mineral deposits and provides few incentives for miners to invest in processing plants, Chang explained. 

“Without mapping, everyone is blindly digging and you just get people who are not interested in really investing in your country,” she said. “With mapping, you’re able to attract much better players and build plants, create jobs, drive economic growth, help the GDP.”

The rise of AI-driven exploration tools

Today, AI-driven mapping tools have created new opportunities to obtain high-precision information with less on-the-ground investment. Geophysical data and satellite imagery are fed into a model that creates a geological map which can help point to high-potential deposits.

Last year, California-based KoBold Metals, which is backed by US billionaires Jeff Bezos and Bill Gates, discovered a massive copper deposit in Zambia using AI-driven exploration. In July, the firm signed an agreement with the DRC to lead critical mineral exploration there. 

But the technology is expensive and not widely available to governments.

Instead, in its 2024 Green Minerals Strategy, the African Union called for some of the revenues from mineral rents to be reinvested into mapping using low-cost techniques such as satellite imagery and drones, which are less precise.

The case for co-operation

For Gerald Arhin, a research fellow at University College London, greater regional collaboration and pooling resources could also help reduce the costs of mapping for individual governments. Last year, for example, South Africa signed an agreement with South Sudan to co-operate on mineral exploration.

“The sharing of data, industrial intelligence and technical expertise across borders could be transformative for African countries, as well as for developing countries in other regions,” Clovis Freire, who heads the Extractive Commodities Section at UN Trade and Development (Unctad), told Climate Home News.

Mapping, however, is only one element of a complicated equation when it comes to developing minerals for the energy transition, said Eszter Szedlacsek, who researches climate justice in the context of the green transition at the Vrije Universiteit Amsterdam.

“In the race for Africa’s critical minerals, deals hinge only partly on where resources are found, and more on geopolitics, investment conditions and longstanding trade ties,” she said.

The post Outdated geological data limits Africa’s push to benefit from its mineral wealth appeared first on Climate Home News.

Outdated geological data limits Africa’s push to benefit from its mineral wealth

I write with a bittersweet announcement. I am moving on from Climate Generation at the end of December. It has been an honor to share my thoughts with you each month here.

For 19 years, Climate Generation has been supporting educators, young people and communities to build climate change literacy and ignite action to arrive at a just and abundant world beyond the climate crisis. This critical and powerful work is essential and will continue with the current team and new leadership.

My time with Climate Generation has been an amazing three years. I have appreciated each of you and the solidarity we built to continue the work despite unprecedented threats from the federal administration, entrenched climate change denialism and the erasure of critical resources. Climate Generation has persevered in spite of those challenges, filling a critical need in the climate justice movement. I am so proud of the work we have accomplished together in this time. Some of the highlights include:

• Increasing the quality and impact of YEA! (Youth Environmental Activists!) programming with adoption of the Youth Program Quality Assessment tool and experiential learning frameworks.

• Retooling our Window into COP program by leveraging relationships to send locally based, intergenerational, and mostly BIPOC delegations to the COPs (Conference of the Parties, also known as the United Nations Climate Talks)

• Launching the Schools As Solutions Fellowship to support educators in becoming climate justice changemakers.

• Adding two youth seats to our Board of Directors.

• Helping to pass groundbreaking legislation, including the 100% Clean Energy bill, the Cumulative Impacts Bill (protecting environmental justice communities), and Ethnic Studies (bringing the experiences of ALL Minnesotans, especially those that have been marginalized, into our curriculum).

Climate Generation has put together a Transition Committee with board and staff representation and is working with Mighty Consulting to bring in an Interim Executive Director. I deeply trust this leadership team and am confident that they will chart the path to carry Climate Generation forward.

I am excited about the work that Climate Generation will continue doing to ignite and sustain the ability of educators, youth, and community to take action on the systems perpetuating the climate crisis. Together we are building a movement.

In solidarity,

Susan Phillips
Executive Director

The post Bittersweet appeared first on Climate Generation.

https://climategen.org/blog/bittersweet/

Greenland is closing in on three decades of continuous annual ice loss, with 1995-96 being the last year in which the giant ice sheet grew in size.

With another melt season over, Greenland lost 105bn tonnes of ice in 2024-25.

The past year has seen some notable events, including ongoing ice melt into the month of September – well beyond the end of August when Greenland’s short summer typically draws to a close.

In a hypothetical world not impacted by human-caused climate change, ice melt in Greenland would rarely occur in September – and, if it did, it would generally be confined to the south.

In this article, we explore how Greenland’s ice sheets fared over the 12 months to August 2025, including the evidence that the territory’s summer melting season is lengthening.

(For our previous analyses of Greenland’s ice cover, see coverage in 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016 and 2015.)

Surface mass balance

The seasons in Greenland are overwhelmingly dominated by winter.

The bitterly cold, dark winter lasts up to ten months, depending on where you are. In contrast, the summer period is generally rather short, starting in late May in southern Greenland and in June in the north, before ending in late August.

Greenland’s annual ice cycle is typically measured from 1 September through to the end of August.

This is because the ice sheet largely gains snow on the surface from September, accumulating ice through autumn, winter and into spring.

Then, as temperatures increase, the ice sheet begins to lose more ice through surface melt than it gains from snowfall, generally from mid-June. The melt season usually continues until the middle or end of August.

Over this 12-month period, scientists track the “surface mass balance” (SMB) of the ice sheet. This is the balance between ice gains and losses at the surface.

To calculate ice gain and losses, scientists use data collected by high-resolution regional climate models and Sentinel satellites.

The SMB does not consider all ice losses from Greenland – we will come to that later – but instead provides a gauge of changes at the surface of the ice sheet.

According to our calculations, Greenland ended the year 2024-25 with an overall SMB of about 404bn tonnes. This is the 15th highest SMB in a dataset that goes back 45 years, exceeding the 1981-2010 average by roughly 70bn tonnes.

This year’s SMB is illustrated in the maps and charts below, based on data from the Polar Portal.

The blue line in the upper chart shows the day-to-day SMB. Large snowfall events become visible as “spikes”. The blue line in the lower chart depicts the accumulated SMB since 1 September 2024. In grey, the long-term average and its variability are shown. For comparison, the red line shows the record-low year of 2011-12.

The map shows the geographic spread of SMB gains (blue) and losses (red) for 2024-25, compared to the long-term average.

It illustrates that southern and north-western Greenland had a relatively wet year compared to the long-term average, while there was mass loss along large sections of the coast, in particular in the south-west. The spikes of snow and melt are clearly visible in the graphs on the right.

Lengthening summer

Scientists have traditionally pinned the start of the “mass balance year” in Greenland to 1 September, given that this is when the ice sheet typically starts to gain mass.

However, evidence has started to emerge of a lengthening of the summer season in Greenland – as predicted some time ago by climate models.

The start of the 2024-25 mass balance year in Greenland saw ice melt continuing into September. This included a particularly unusual spike in ice melt in the northern part of the territory in September as well as all down the west coast.

In a world without human-caused climate change, ice melt in September would be very rare – and generally confined to the south.

Greenland also saw an early start to the summer melt season in 2025. The onset of the melting season, defined as the first of at least three days in a row with melting over more than 5% of the ice sheet, was on 14 May. This is 12 days earlier than the 1981-2025 average.

The maps below show the extent of melt (red shading) across the ice sheet on 24 September 2024 (left) and 20 May 2025 (right). The blue lines in charts beneath show the percentage melt in 2024 (left) and 2025 (right), up to these dates, compared to the 1981-2010 average (grey).

The melt season began with a significant spike of melting across the southern part of the ice sheet. This happened in combination with sea ice breaking up particularly early in north-west Greenland, allowing the traditional narwhal hunt to start much earlier than usual.

Surface melt

The ablation season, which covers the period in the year when Greenland is losing ice, started a little late. The onset of the season – defined as the first of at least three days in a row with an SMB below -1bn tonnes – began on 15 June, which is two days later than the 1981-2010 average.

Overall, during the 2025 summer, a remarkably large percentage of the ice sheet was melting at once. This area was larger than the 1981-2010 average for three and a half months (mid-June to end of September).

In mid-July, melting occurred over a record area. For three days in a row, melting was present over more than 80% of the area of the ice sheet – peaking at 81.2%. This is the highest value in our dataset, which started in 1981.

The red shading in the maps below shows the extent of melting across Greenland on 19 July (left) and 30 September (right) 2025. The charts beneath show the daily extent of melting through 2025 (blue line), up to these dates, compared to the 1981-2010 average.

Snowfall

However, the SMB is not just about ice melt.

There was a lack of snowfall in the early winter months (September to January), particularly in south-east Greenland, which is typically the wettest part of the territory. The months that followed then saw abundant snow, which brought snowfall totals up closer to average by the start of summer.

A cold period at the end of May and in June protected the ice sheet from excessive ice loss. Melt then continued rather weakly until mid-July.

This was followed by strong melting rates in the second half of July and again in mid-August.

Overall, with both ice melt and snowfall exceeding their historical averages for the year as a whole, the SMB of the Greenland ice sheet ended above the 1981-2010 average.

These increases in snowfall and melt are in line with what scientists expect in a warming climate. This is because air holds more water vapour as it warms – leading to more snowfall and rain. Warmer temperatures also lead to more ice melt.

Total mass balance

The surface mass balance is just one component of the “total” mass balance (TMB) of the Greenland ice sheet.

The total mass balance of Greenland is the sum of the SMB, the marine mass balance (MMB) and basal mass balance (BMB). In other words, it brings together calculations from the surface, sides and base of the ice sheet.

The MMB measures the impact of the breaking off – or “calving” – of icebergs, as well as the melting of the front of glaciers where they meet the warm sea water. The MMB is always negative and has increased towards more negative values over the last decades.

BMB refers to ice losses from the base of the ice sheet. This makes a small negative contribution to the TMB.

(The only way for the ice sheet to gain mass is through snowfall.)

The continued mass loss observed in Greenland is primarily due to a weakening of the SMB – caused by rising melt combined with insufficient compensation of lost ice through snowfall.

The figure below shows how much ice the Greenland ice sheet has lost (red) going back to 1987, which includes the SMB (dark blue), MMB (mid blue) and BMB (light blue). The analysis, which uses data from three models, is based on 2021 research published in Earth System Science.

Despite a relatively high SMB, high calving rates meant that Greenland lost 105bn tonnes of ice over the 12-month period.

This means that 2024-25 was the 29th year in a row with a Greenland ice sheet overall mass loss. As the chart shows, Greenland last saw an annual net gain of ice in 1996.

Satellite data

The mass balance of the Greenland ice sheet can also be measured by looking at the Earth’s gravitational field, using data captured by the Grace and Grace-FO satellite missions – a joint initiative from NASA and the German Aerospace Center.

The Grace satellites are twin satellites that follow each other closely at a distance of about 220km, which is why they are nicknamed “Tom and Jerry”. The distance between the two depends on gravity – which is, in turn, related to changes in mass on Earth, including ice loss.

Therefore, the distance between the two satellites, which can be measured very precisely, can be used to calculate loss of mass from the Greenland ice sheet.

Overall, the satellite data reveals that Greenland’s ice sheet lost around 55bn tonnes of ice over the 2024-25 season.

There is reasonably good agreement between the Grace satellite data and the model data, which, as noted above, finds that 105bn tonnes of ice was lost in Greenland over the same period.

However, the alignment of the two datasets – which are fully independent of each other – becomes more clear once a longer time period is considered.

In the 22-year period between April 2002 and May 2024, the Grace data shows that Greenland lost 4,911bn tonnes of ice. The modelling approach, on the other hand, calculates that 4,766bn tonnes of ice was lost.

The figure below shows gain and loss in the total mass of ice of the Greenland ice sheet, calculated using Grace satellite measurements. It reveals that, over the past 23 years, there has been mass loss in the order of several metres along the coasts of Greenland, with the most significant losses seen on the western coast. Over the central parts of the ice sheet, there has been a small mass gain.

The lower figure shows the contribution of Greenland mass change to sea level rise over the last 23 years, according to the satellite data. It illustrates that more than 5,000bn tonnes of ice have been lost over the time period – contributing to roughly 1.5cm of sea level rise.

Warm over Europe and North America, cool over Greenland

As always, the weather systems across the northern hemisphere play a key role in the melt and snowfall that Greenland sees each year.

As in previous years, multiple heatwaves were observed in southern Europe and North America over the summer of 2025.

And, just like in 2024, there was only modest heat in northern Europe – with the notable exception of Arctic Scandinavia – with a comparably cool and rainy July followed by a warmer and sunnier August.

The high-pressure weather systems that bring heatwaves have a wide-ranging impact on weather extremes across the northern hemisphere.

Strong blocking patterns over North America and Europe were repeatedly present in the course of the summer of 2025. In such a blocked flow, the jet stream – fast-moving winds that blow from west to east high in the atmosphere – is shaped like the Greek capital letter Omega (Ω).

The jet stream bulged up to the north over Canada and northern Europe. West and east of these ridges, low pressure troughs were found at both “feet” of the Omega. One of these troughs was located over Greenland (top left panel in next figure).

This resulted in widespread heat near the cores of these high-pressure systems, fuelling fires in several countries, including large wildfires in Canada. Smoke from these wildfires reached Greenland and Europe in late May.

Unlike in previous years, no heavy precipitation events were observed near the “feet” of the Omega.

If the Omega pattern is displaced by half a wavelength, the opposite – warm over Greenland, with cool continents – is also possible.

This circulation pattern occurred in August 2025 and is shown in the top right panel of the figure below. The bottom panel depicts the large temperature variability in May 2025.

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The post Guest post: How the Greenland ice sheet fared in 2025 appeared first on Carbon Brief.

Guest post: How the Greenland ice sheet fared in 2025