There is a “mismatch” between the importance of peatlands and their current level of protection, a new study warns.
The paper, published in Conservation Letters, combines maps showing global peatlands, protected areas and human impact in the year 2020, to provide a snapshot of the current level of global peatland protection.
The authors stress that peatlands are crucial carbon stores, holding more carbon than all the world’s forest biomass combined.
However, they find that only 17% of peatlands fall within protected areas – a “substantially lower” proportion than other “high-value ecosystems”, such as mangroves, saltmarshes and tropical forests, they say.
The study finds that 22% of global peatlands are under “high human pressure”, with regions in Europe and the east coast of the US under particular threat.
Furthermore, one-third of the global peatlands in protected areas and Indigenous people’s lands still experience “medium to high human pressure”, the paper finds.
‘Disproportionate’ carbon stores
Despite peatlands’ relatively small footprint – they cover only 3% of the Earth’s land surface – the ecosystems store a “disproportionate amount” of carbon.
Research has shown that there is more carbon contained in peatlands than in all of the world’s forests combined – around 600bn tonnes (GtC).
They also provide myriad other “ecosystem services”, such as regulating air temperatures, storing water and creating habitat for many species.
Peatlands are wetland ecosystems that form slowly over time. When plant matter in one of these habitats dies, the high water content of the soils prevents it from decomposing completely.
As a result, plant matter accumulates, building up as carbon-rich peat over time. Peatlands are found on every inhabited continent, primarily in the high latitudes of the northern hemisphere and in the tropics.
The degradation and destruction of peatlands is a significant carbon source, contributing 2-4% of human-driven greenhouse gas emissions each year. Peatlands are often drained or degraded during use for agriculture, and about 16% of peatlands globally have been drained to date. In some places, peat is intentionally removed to be used as fuel or fertile soil.
Prof Chris Evans, a biogeochemist at the UK Centre for Ecology & Hydrology, who was not involved in the study, tells Carbon Brief:
“Peatland degradation is second only to tropical deforestation as a source of greenhouse gas emissions from land use, yet peatlands are often overlooked in conservation and climate policy.”
At the same time, climate change itself is putting peatlands at risk.
Increased temperatures are causing permafrost thaw, allowing the once-frozen peat to decompose and release CO2 into the atmosphere. Warmer temperatures also increase microbial activity, leading to faster rates of decomposition, while warmer, drier peatlands are more susceptible to fires.
Losing peatlands has “cascading effects on local water supplies, agriculture and fisheries, disproportionately affecting Indigenous and rural communities”, says Dr Michelle Kalamandeen, a geospatial scientist at McMaster University in Ontario, who was not involved in the study.
Protected areas
This study centres on an existing map of global peatland. The map divides the world into grid cells and, using a machine learning model trained on data collected on the ground, estimates the proportion of each cell that contains peatland at least 30cm deep.
The map identifies around 4m square kilometres (km2) of peatland globally. More than 60% of this is “boreal peatland” – found in the high-latitude northern regions, such as Canada, Russia and Scandinavia – and the rest is found in temperature or tropical regions, according to the study.
The authors then cross-reference the map with a database of global protected areas. The database encompasses both “strict” protection areas, such as national parks and nature reserves, as well as less strict land-management regimes where some human activity is permitted.
The database also shows Ramsar sites, a subset of protected areas designated to be of international importance under the Ramsar convention – also known as the “Convention on Wetlands”. (The convention seeks to promote “the wise use of all wetlands” in participating countries and encourage international co-operation with other countries.)
The authors find that only 17% of peatlands are located in protected areas. This is “substantially lower than other high-value ecosystems such as mangroves, 42% of which are within official protected areas globally, saltmarshes (50%) and tropical forests (38%)”, the study says.
Dr Kemen Austin is the director of science at the Wildlife Conservation Society‘s forests and climate change programme, and lead author of the new study. In a press release, she says that the study “reveals that these vital ecosystems don’t have anywhere near the level of protection they need”.
The authors also present case studies of individual countries. For example, they find that nearly 90% of peatland in the Republic of the Congo is protected. However, they warn that “most of this falls within a designated Ramsar site that has not yet been backed-up by strong government commitments”.
The study identifies a large body of literature showing that “Indigenous land rights and community-based management result in positive environmental outcomes, such as reduced deforestation and forest degradation”. The authors analyse data on Indigenous stewardship and find that one-quarter of global peatlands sit on land owned by Indigenous groups.
Human impact
The authors assess human pressures on peatland using the Human Impact Index (HII). This metric quantifies the “cumulative anthropogenic pressures” on a region, using a scale of 0-50 that incorporates factors such as accessibility, land use and population density.
The map below shows human pressure in areas that contain more than 5% peatland by area. Light pink shows “low-pressure” regions, medium pink shows “medium-pressure” regions and dark pink shows “high-pressure” regions.
The top map shows the whole planet, while the three inset maps below highlight chosen case studies in Peru, the Congo Basin and Indonesia.
The authors find that globally, 22% percent of peatlands are under high human pressure, 12% are under medium pressure and 61% are under low pressure. The remaining 5% are in areas without reported HII data.
The authors find that almost half of peatlands in temperate regions are facing high human pressure, adding that Europe and the US east coast are under particular stress. At the other end of the scale, they estimate that human pressure is low in Brazil, the lowlands of Peru, the Republic of the Congo and eastern Indonesia.
The study says that, as expected, human pressure is “somewhat higher” in unprotected peatlands than protected peatlands. However, it adds:
“Nearly one-third of global peatlands, and nearly half of temperate and tropical peatlands in protected areas and Indigenous people’s lands, still experience medium-to-high human pressure.”
The chart below shows the area of peatland in protected and unprotected boreal, temperate and tropical regions that is facing high (black) medium (grey) and low (light grey) human pressure.
Kalamandeen tells Carbon Brief that the study “underscores a fundamental disconnect between conservation priorities and real-world climate needs”.
However, she notes that there are some limitations to the methodology. For example, she tells Carbon Brief that the underlying peatland map “performs well in data-rich regions”, but says that “its accuracy drops where ground-truth data is lacking, notably in Africa, South America and boreal regions”.
Furthermore, the map only recognises peatlands deeper than 30cm, meaning that “shallower, but still ecologically valuable peatlands, are ignored”.
She continues:
“This study is an excellent starting point, but if we are serious about peatland protection, countries need to invest in better mapping and monitoring technologies such as using Earth observations and improving ground surveys to help refine conservation strategies.”
Peatland conservation
The new research “quantifies an issue that was previously known: that peatlands are under-protected when compared to other critical ecosystem types”, Dr Julie Loisel, a palaeoecologist at the University of Nevada, Reno, tells Carbon Brief. Loisel, who was not involved in the study, adds:
“In the face of rapid environmental change, ensuring that peatlands can ‘do their job’ of storing CO2 into their soils for the next few thousands of years is very important and any policy or land management effort that is enabling this simple goal should be put forth and prioritised.”
The study notes that several international policy frameworks, such as the global stocktake process under the Paris Agreement and the Kunming-Montreal Global Biodiversity Framework, can be applied to further the protection of wetlands.
For example, the authors note that Peru’s nationally determined contribution includes strategies for improving peatland management, such as establishing new conservation areas and recognising Indigenous peoples’ knowledge about peatlands.
However, Peru is one of the few countries with plans for the preservation of peatlands, alongside the UK, according to the study. Austin adds:
“Based on the nationally determined contributions countries have submitted to date, the continued disturbance and damage to global peatlands is getting very little attention as a significant and avoidable source of greenhouse gas emissions.”
In addition to protection of intact peatlands, peatland restoration “will be necessary for managing peat fires and meeting climate targets nationally”, the study says. Restoration typically involves altering the wetland’s water flows to “rewet” drained peat. It can also encompass controls on pollution, protection from burning and grazing and regrowing plants.
But while restoration can slow the release of CO2 and promote some ecosystem services, it is not an adequate substitute for peatland protection. The study notes:
“Notably, once emitted to the atmosphere, the carbon lost from peatlands cannot be restored on timescales that matter for preventing dangerous climate change.”
Promoting Indigenous peoples’ land rights is one way to support the protection of peatlands, Loisel says. She tells Carbon Brief:
“Conservation efforts do not necessarily imply ‘protection from use’, but are rather meant to ensure their ‘proper use’, or ‘sustainable use’. Indigenous community uses of peatlands have been known to be sustainable.”
Kalamandeen tells Carbon Brief that, while legal protections are “crucial”, their impact “depends on enforcement, management capacity and local engagement”. Meanwhile, she says that “Indigenous and community-managed lands, even without formal protection, often demonstrate strong conservation outcomes”.
Dr Adam Todd Hastie is the leader of the carbon and wetlands group at Charles University, and was not involved in the study. He agrees, calling Indigenous stewardship “often the best and most simple solution” to protecting peatlands.
However, he adds that global-north countries “need to be thoughtful in our calls for less economically developed countries to protect their peatlands”. He tells Carbon Brief:
“If we want less economically developed countries to take a different path of protecting their peatlands – and peat carbon – and to forgo short-term economic benefits, such as revenue from plantations or mining, we (especially Europe and North America) must contribute in real terms to developing alternative sustainable solutions, both environmentally and economically.”
The post Just 17% of world’s peatlands are protected, new study warns appeared first on Carbon Brief.
Just 17% of world’s peatlands are protected, new study warns
N.C. Gov. Josh Stein wants state lawmakers to rethink tax breaks for data centers. The industry’s opacity makes it difficult to evaluate costs and benefits.
Tax breaks for data centers in North Carolina keep as much as $57 million each year into from state and local government coffers, state figures show, an amount that could balloon to billions of dollars if all the proposed projects are built.
The Global Environment Facility (GEF), a multilateral fund that provides climate and nature finance to developing countries, has raised $3.9 billion from donor governments in its last pledging session ahead of a key fundraising deadline at the end of May.
The amount, which is meant to cover the fund’s activities for the next four years (July 2026-June 2030), falls significantly short of the previous four-year cycle for which the GEF managed to raise $5.3bn from governments. Since then, military and other political priorities have squeezed rich nations’ budgets for climate and development aid.
The facility said in a statement that it expects more pledges ahead of the final replenishment package, which is set for approval at the next GEF Council meeting from May 31 to June 3.
Claude Gascon, interim CEO of the GEF, said that “donor countries have risen to the challenge and made bold commitments towards a more positive future for the planet”. He added that the pledges send a message that “the world is not giving up on nature even in a time of competing priorities”.
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Donors under pressure
But Brian O’Donnell, director of the environmental non-profit Campaign for Nature, said the announcement shows “an alarming trend” of donor governments cutting public finance for climate and nature.
“Wealthy nations pledged to increase international nature finance, and yet we are seeing cuts and lower contributions. Investing in nature prevents extinctions and supports livelihoods, security, health, food, clean water and climate,” he said. “Failing to safeguard nature now will result in much larger costs later.”
At COP29 in Baku, developed countries pledged to mobilise $300bn a year in public climate finance by 2035, while at UN biodiversity talks they have also pledged to raise $30bn per year by 2030. Yet several wealthy governments have announced cuts to green finance to increase defense spending, among them most recently the UK.
As for the US, despite Trump’s cuts to international climate finance, Congress approved a $150 million increase in its contribution to the GEF after what was described as the organisation’s “refocus on non-climate priorities like biodiversity, plastics and ocean ecosystems, per US Treasury guidance”.
The facility will only reveal how much each country has pledged when its assembly of 186 member countries meets in early June. The last period’s largest donors were Germany ($575 million), Japan ($451 million), and the US ($425 million).
The GEF has also gone through a change in leadership halfway through its fundraising cycle. Last December, the GEF Council asked former CEO Carlos Manuel Rodriguez to step down effective immediately and appointed Gascon as interim CEO.
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New guidelines
As part of the upcoming funding cycle, the GEF has approved a set of guidelines for spending the $3.9bn raised so far, which include allocating 35% of resources for least developed countries and small island states, as well as 20% of the money going to Indigenous people and communities.
Its programs will help countries shift five key systems – nature, food, urban, energy and health – from models that drive degradation to alternatives that protect the planet and support human well-being by integrating the value of nature into production and consumption systems.
The new priorities also include a target to allocate 25% of the GEF’s budget for mobilising private funds through blended finance. This aligns with efforts by wealthy countries to increase contributions from the private sector to international climate finance.
Niels Annen, Germany’s State Secretary for Economic Cooperation and Development, said in a statement that the country’s priorities are “very well reflected” in the GEF’s new spending guidelines, including on “innovative finance for nature and people, better cooperation with the private sector, and stable resources for the most vulnerable countries”.
Aliou Mustafa, of the GEF Indigenous Peoples Advisory Group (IPAG), also welcomed the announcement, adding that “the GEF is strengthening trust and meaningful partnerships with Indigenous Peoples and local communities” by placing them at the “centre of decision-making”.
The post GEF raises $3.9bn ahead of funding deadline, $1bn below previous budget appeared first on Climate Home News.
GEF raises $3.9bn ahead of funding deadline, $1bn below previous budget
Tropical cyclones that rapidly intensify when passing over marine heatwaves can become “supercharged”, increasing the likelihood of high economic losses, a new study finds.
Such storms also have higher rates of rainfall and higher maximum windspeeds, according to the research.
The study, published in Science Advances, looks at the economic damages caused by nearly 800 tropical cyclones that occurred around the world between 1981 and 2023.
It finds that rapidly intensifying tropical cyclones that pass near abnormally warm parts of the ocean produce nearly double – 93% – the economic damages as storms that do not, even when levels of coastal development are taken into account.
One researcher, who was not involved in the study, tells Carbon Brief that the new analysis is a “step forward in understanding how we can better refine our predictions of what might happen in the future” in an increasingly warm world.
As marine heatwaves are projected to become more frequent under future climate change, the authors say that the interactions between storms and these heatwaves “should be given greater consideration in future strategies for climate adaptation and climate preparedness”.
‘Rapid intensification’
Tropical cyclones are rapidly rotating storm systems that form over warm ocean waters, characterised by low pressure at their cores and sustained winds that can reach more than 120 kilometres per hour.
The term “tropical cyclones” encompasses hurricanes, cyclones and typhoons, which are named as such depending on which ocean basin they occur in.
When they make landfall, these storms can cause major damage. They accounted for six of the top 10 disasters between 1900 and 2024 in terms of economic loss, according to the insurance company Aon’s 2025 climate catastrophe insight report.
These economic losses are largely caused by high wind speeds, large amounts of rainfall and damaging storm surges.
Storms can become particularly dangerous through a process called “rapid intensification”.
Rapid intensification is when a storm strengthens considerably in a short period of time. It is defined as an increase in sustained wind speed of at least 30 knots (around 55 kilometres per hour) in a 24-hour period.
There are several factors that can lead to rapid intensification, including warm ocean temperatures, high humidity and low vertical “wind shear” – meaning that the wind speeds higher up in the atmosphere are very similar to the wind speeds near the surface.
Rapid intensification has become more common since the 1980s and is projected to become even more frequent in the future with continued warming. (Although there is uncertainty as to how climate change will impact the frequency of tropical cyclones, the increase in strength and intensification is more clear.)
Marine heatwaves are another type of extreme event that are becoming more frequent due to recent warming. Like their atmospheric counterparts, marine heatwaves are periods of abnormally high ocean temperatures.
Previous research has shown that these marine heatwaves can contribute to a cyclone undergoing rapid intensification. This is because the warm ocean water acts as a “fuel” for a storm, says Dr Hamed Moftakhari, an associate professor of civil engineering at the University of Alabama who was one of the authors of the new study. He explains:
“The entire strength of the tropical cyclone [depends on] how hot the [ocean] surface is. Marine heatwave means we have an abundance of hot water that is like a gas [petrol] station. As you move over that, it’s going to supercharge you.”
However, the authors say, there is no global assessment of how rapid intensification and marine heatwaves interact – or how they contribute to economic damages.
Using the International Best Track Archive for Climate Stewardship (IBTrACS) – a database of tropical cyclone paths and intensities – the researchers identify 1,600 storms that made landfall during the 1981-2023 period, out of a total of 3,464 events.
Of these 1,600 storms, they were able to match 789 individual, land-falling cyclones with economic loss data from the Emergency Events Database (EM-DAT) and other official sources.
Then, using the IBTrACS storm data and ocean-temperature data from the European Centre for Medium-Range Weather Forecasts, the researchers classify each cyclone by whether or not it underwent rapid intensification and if it passed near a recent marine heatwave event before making landfall.
The researchers find that there is a “modest” rise in the number of marine heatwave-influenced tropical cyclones globally since 1981, but with significant regional variations. In particular, they say, there are “clear” upward trends in the north Atlantic Ocean, the north Indian Ocean and the northern hemisphere basin of the eastern Pacific Ocean.
‘Storm characteristics’
The researchers find substantial differences in the characteristics of tropical cyclones that experience rapid intensification and those that do not, as well as between rapidly intensifying storms that occur with marine heatwaves and those that occur without them.
For example, tropical cyclones that do not experience rapid intensification have, on average, maximum wind speeds of around 40 knots (74km/hr), whereas storms that rapidly intensify have an average maximum wind speed of nearly 80 knots (148km/hr).
Of the rapidly intensifying storms, those that are influenced by marine heatwaves maintain higher wind speeds during the days leading up to landfall.
Although the wind speeds are very similar between the two groups once the storms make landfall, the pre-landfall difference still has an impact on a storm’s destructiveness, says Dr Soheil Radfar, a hurricane-hazard modeller at Princeton University. Radfar, who is the lead author of the new study, tells Carbon Brief:
“Hurricane damage starts days before the landfall…Four or five days before a hurricane making landfall, we expect to have high wind speeds and, because of that high wind speed, we expect to have storm surges that impact coastal communities.”
They also find that rapidly intensifying storms have higher peak rainfall than non-rapidly intensifying storms, with marine heatwave-influenced, rapidly intensifying storms exhibiting the highest average rainfall at landfall.
The charts below show the mean sustained wind speed in knots (top) and the mean rainfall in millimetres per hour (bottom) for the tropical cyclones analysed in the study in the five days leading up to and two days following a storm making landfall.
The four lines show storms that: rapidly intensified with the influence of marine heatwaves (red); those that rapidly intensified without marine heatwaves (purple); those that experienced marine heatwaves, but did not rapidly intensify (orange); and those that neither rapidly intensified nor experienced a marine heatwave (blue).
Dr Daneeja Mawren, an ocean and climate consultant at the Mauritius-based Mascarene Environmental Consulting who was not involved in the study, tells Carbon Brief that the new study “helps clarify how marine heatwaves amplify storm characteristics”, such as stronger winds and heavier rainfall. She notes that this “has not been done on a global scale before”.
However, Mawren adds that other factors not considered in the analysis can “make a huge difference” in the rapid intensification of tropical cyclones, including subsurface marine heatwaves and eddies – circular, spinning ocean currents that can trap warm water.
Dr Jonathan Lin, an atmospheric scientist at Cornell University who was also not involved in the study, tells Carbon Brief that, while the intensification found by the study “makes physical sense”, it is inherently limited by the relatively small number of storms that occur. He adds:
“There’s not that many storms, to tease out the physical mechanisms and observational data. So being able to reproduce this kind of work in a physical model would be really important.”
Economic costs
Storm intensity is not the only factor that determines how destructive a given cyclone can be – the economic damages also depend strongly on the population density and the amount of infrastructure development where a storm hits. The study explains:
“A high storm surge in a sparsely populated area may cause less economic damage than a smaller surge in a densely populated, economically important region.”
To account for the differences in development, the researchers use a type of data called “built-up volume”, from the Global Human Settlement Layer. Built-up volume is a quantity derived from satellite data and other high-resolution imagery that combines measurements of building area and average building height in a given area. This can be used as a proxy for the level of development, the authors explain.
By comparing different cyclones that impacted areas with similar built-up volumes, the researchers can analyse how rapid intensification and marine heatwaves contribute to the overall economic damages of a storm.
They find that, even when controlling for levels of coastal development, storms that pass through a marine heatwave during their rapid intensification cause 93% higher economic damages than storms that do not.
They identify 71 marine heatwave-influenced storms that cause more than $1bn (inflation-adjusted across the dataset) in damages, compared to 45 storms that cause those levels of damage without the influence of marine heatwaves.
This quantification of the cyclones’ economic impact is one of the study’s most “important contributions”, says Mawren.
The authors also note that the continued development in coastal regions may increase the likelihood of tropical cyclone damages over time.
Towards forecasting
The study notes that the increased damages caused by marine heatwave-influenced tropical cyclones, along with the projected increases in marine heatwaves, means such storms “should be given greater consideration” in planning for future climate change.
For Radfar and Moftakhari, the new study emphasises the importance of understanding the interactions between extreme events, such as tropical cyclones and marine heatwaves.
Moftakhari notes that extreme events in the future are expected to become both more intense and more complex. This becomes a problem for climate resilience because “we basically design in the future based on what we’ve observed in the past”, he says. This may lead to underestimating potential hazards, he adds.
Mawren agrees, telling Carbon Brief that, in order to “fully capture the intensification potential”, future forecasts and risk assessments must account for marine heatwaves and other ocean phenomena, such as subsurface heat.
Lin adds that the actions needed to reduce storm damages “take on the order of decades to do right”. He tells Carbon Brief:
“All these [planning] decisions have to come by understanding the future uncertainty and so this research is a step forward in understanding how we can better refine our predictions of what might happen in the future.”
The post Marine heatwaves ‘nearly double’ the economic damage caused by tropical cyclones appeared first on Carbon Brief.
Marine heatwaves ‘nearly double’ the economic damage caused by tropical cyclones
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