In an increasingly unstable world of “strong arms and trade wars”, climate action is the “not-so-secret weapon” that can deliver security, the UN climate chief said in his first speech of the year.

Speaking in Istanbul alongside Turkiye’s COP31 president on Thursday, Simon Stiell warned that, while security is on most leaders’ lips at the moment, “many cling to a definition that is dangerously narrow”.

“For any leader who is serious about security, climate action is mission critical, as climate impacts wreak havoc on every population and economy,” he added. “Climate cooperation is an antidote to the chaos and coercion of this moment, and clean energy is the obvious solution to spiralling fossil fuel costs, both human and economic.”

Stiell’s remarks aim to reframe the global security debate at a time when climate change has slipped down the global political agenda.

Climate dropping down priority list

In much of the Western world, governments’ attention has shifted towards geopolitical tensions and spending redirected towards defence build-up following Russia’s invasion of Ukraine and, more recently, US President Donald Trump’s military action in Venezuela and renewed pursuit of Greenland.

Climate change has also fallen sharply in public risk perception among advanced economies, according to the Munich Security Conference’s annual survey on national threats, released ahead of the annual gathering of leaders – including those of most European nations – which starts on Friday.

In 2021, respondents in the G7 industrialised nations ranked climate change as the top risk facing their countries. This year, it has slipped to sixth place, overtaken by worries about cyberattacks, financial crises and disinformation.

By contrast, climate-related threats continue to dominate risk perceptions in major emerging economies. In China, India, Brazil and South Africa, respondents consistently rank climate change, extreme weather and forest fires among the most serious dangers facing their countries, the survey found.

“Antidote to the chaos”

The shift in sentiment comes as global temperatures are on course to breach the 1.5C warming threshold widely regarded as a critical guardrail. Scientists warn surpassing that limit would significantly increase the likelihood of more frequent and severe climate impacts worldwide, from droughts to floods and storms.

“Growing greenhouse gas pollution means escalating climate extremes fuelling famine, displacement and war,” said Stiell on Thursday, adding that “climate adaptation is the only path to securing billions of human lives, as climate impacts get rapidly worse”.

Clean energy, meanwhile, is the best way to protect energy supplies and communities from fossil fuels’ volatile costs, he added.

“The fact is renewables are the clearest, cheapest path to energy security and sovereignty – shielding countries and economies from shocks unleashed by wars, trade turmoil and the might-is-right politics that leave every nation poorer,” the UN climate chief said.

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Ahead of the Munich Security Conference, energy analysts are warning that Europe should be wary of its reliance on US gas, which has become a growing energy source across the continent following restrictions on supplies from Russia after its invasion of Ukraine.

Chris Aylett, research fellow at Chatham House’s Environment and Society Centre, said Trump’s pursuit of geopolitical energy dominance seeks to lock countries, including EU member states, into long-term oil and gas dependencies.

“During peace, this vulnerability to an unreliable – if not actively hostile – supplier would be a major constraint on Europe’s strategic autonomy,” he added. “During war it would be catastrophic”.

What role for climate diplomacy?

UN climate head Stiell met this week with officials from the Turkish and Australian governments – co-hosts of this year’s COP31 summit in Antalya – as well as Brazil’s COP30 presidency to kick-start climate diplomacy efforts for the year ahead.

The ability of UN climate negotiations to keep up with the urgency of the climate crisis is coming under increasing question. The deepening divisions seen in Belém last November have stalled meaningful progress on key issues such as the transition away from fossil fuels and climate finance.

In his speech, Stiell acknowledged that climate cooperation is “under unprecedented threat” from those determined to use their power to increase dependency on polluting coal, oil and gas.

But climate action needs to enter a new “era of implementation” with the UN process moving closer to the real economy and countries deepening cooperation with businesses, investors and regional leaders, he added. Stiell noted he has convened experts to advise on this, and will say more about it in the months ahead.

Stiell’s remarks on the evolving UN climate regime echo the words of COP30 president André Aranha Corrêa do Lago. In a letter last month, he said climate multilateralism needs to “mature” and called for a shift to a two-speed system, where new coalitions lead fast, practical action alongside the slower, consensus-based decision-making of the annual COP climate summits.

The post Climate action is “weapon” for security in unstable world, UN climate chief says appeared first on Climate Home News.

Climate action is “weapon” for security in unstable world, UN climate chief says

Budget pressures are forcing climate groups into uncomfortable compromises even as Maryland falls further behind on its climate targets.

By Aman Azhar

Maryland environmental groups are backing Gov. Wes Moore’s plan to redirect more than $700 million from the state’s main clean energy fund while at the same time pushing for legislation to prevent similar raids in the future and secure hundreds of millions of dollars in guaranteed yearly climate spending going forward.

Maryland Environmentalists Face Awkward Choice: Support Moore’s Budget Raid or Fight for Climate Goals

Donald Trump has overseen more retirements of coal-fired power stations than any other US president, according to Carbon Brief analysis.

His administration’s latest efforts to roll back US climate policy have been presented by interior secretary Doug Burgum as an opportunity to revive “clean, beautiful, American coal”.

The administration is in the process of attempting to repeal the 2009 “endangerment” finding, which is the legal underpinning of many federal climate regulations.

On 11 February, the White House issued an executive order on “America’s beautiful clean coal power generation fleet”, calling for government contracts and subsidies to keep plants open.

On the same day, Trump was presented with a trophy by coal-mining executives declaring him to be the “undisputed champion of beautiful clean coal”.

These words are in sharp contrast to Trump’s record in office, with more coal-fired power plants having retired under his leadership than any other president, as shown in the figure below.

This is because coal plants have been uneconomic to operate compared with cheaper gas and renewables – and because most of the US coal fleet is extremely old.

In total, some 57 gigawatts (GW) of coal capacity has already been retired during Trump’s first and second terms in office, compared with 48GW under Obama’s two full terms and 41GW under Biden’s single term.

Even in relative terms, the US has lost a larger proportion of its remaining coal fleet for each year of Trump’s presidencies than for either of his recent predecessors.

Trump’s record hints at the many practical and economic factors that have driven US coal closures, regardless of the preferences of the president of the day.

Indeed, Trump made variousefforts to prop up coal power during his first term in office. These were ultimatelyunsuccessful, as the figure below illustrates.

Coal plants have been retiring in large numbers over the past 20 years because they were uneconomic relative to cheaper sources of electricity, including renewables and gas.

These unfavourable market conditions, alongside air pollution regulations unrelated to climate change, have resulted in a steady parade of coal closures under successive presidents.

By 2024, wind and solar were generating more electricity in the US than coal.

More recently, analysis from the US Energy Information Administration shows that surging power prices have improved the economics of both coal and gas-fired power plants.

These rising prices have been driven by increasing demand, including from data centres, and by higher gas prices, due to increasing exports at liquefied natural gas (LNG) terminals.

These factors saw coal-power output increase by 13% year-on-year in 2025, only the second rise in a decade of steady decline for the fuel, according to the Rhodium Group.

Nevertheless, many utilities have still been looking to shutter their ageing coal-fired power plants.

The vast majority of US coal plants are nearing retirement. Three-quarters of US coal capacity is more than four decades old and only 14% is less than 20 years old, as shown in the figure below.

In response, the Trump administration has recently invoked legislation designed for wartime emergencies to force a number of uneconomic coal plants to remain open.

Despite Trump’s efforts, clean energy made up 96% of the new electricity generation capacity added to the US grid in 2025. None of the new capacity came from coal power.

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The post Analysis: Trump has overseen more coal retirements than any other US president appeared first on Carbon Brief.

Analysis: Trump has overseen more coal retirements than any other US president