European troops have landed in Greenland amid tense talks between the country's autonomous government, officials from Denmark, and the United States. President Trump has continued to insist the two-million-square-kilometer Arctic island should belong to the United States—despite pre-existing security agreements and a (previously) strong relationship with Denmark that grants the US significant military access to the territory. Beyond Trump's ego, there are reasons related to climate change that explain why Greenland is becoming of political interest. The territory's strategic location has become even more so in recent years as the Greenland ice sheet and surrounding sea ice have retreated significantly: The ice sheet lost 105 billion tonnes in 2024-25, according to scientists. This has disastrous implications—ice helps cool the planet, and its melt will lead to rising seas. But it also allows ships and submarines more freedom of movement, making military planners nervous.

President Donald Trump signed a presidential memorandum Jan. 7 directing the United States to withdraw from 66 international organizations, including the UN Framework Convention on Climate Change and the Intergovernmental Panel on Climate Change.

A rare convergence of three tropical cyclones with the northeast monsoon has triggered what officials say is the worst flooding to hit South and Southeast Asia in decades. More than 1,600 people have been killed, thousands remain unaccounted for, and whole villages have disappeared under mud and rising water. Roads, bridges, and other vital infrastructure have been torn apart, hampering rescue efforts as communities wait for help. Damage across Indonesia, Thailand, Sri Lanka, Vietnam and other affected countries is expected to top $20 billion, with homes, transport links, factories, farmland, and tourism hubs all severely affected. Farmers lost entire harvests, coastal traders saw their shops washed away, and thousands of families already living on the margins now find themselves with nothing left to rebuild from.

The world's governments approved a new climate deal at the COP30 summit in Belém, Brazil, adopting the so‑called Belém Package, a bundle of decisions that calls for tripling outlays to help vulnerable countries adapt to intensifying climate impacts.

Amnesty International on Nov. 20 denounced authorities in Chad for their failure to protect victims of armed clashes between herders and farmers. The group documented seven instances of herder-farmer violence  in four provinces between 2022 and 2024, which resulted in 98 people dead, at least 100 injured, and 600 left without homes or sources of income.

Indigenous groups held protests Nov. 14 in Belém, blocking the main entrance to the restricted area at the UN Climate Summit (COP30) to demand that the Brazilian government halt extractive projects that jeopardize their cultures and livelihoods.

Following another year of record temperatures and powerful storms, world leaders are gathering in Belém, Brazil, ahead of the official opening of the COP30 climate talks. But the leaders attending—notably, they do not include US President Donald Trump—will be confronted by the fraying global consensus on climate change, amid difficult geopolitical headwinds. A major risk to multilateral climate action is the presidency of Trump, who has described global warming as the world's "greatest con job." Reuters reported that some European officials have been bracing for a possible intervention by the Trump administration—despite the US withdrawal from the Paris Agreement. Washington recently torpedoed a carbon levy on shipping, and the European officials are worried that the Trump administration could make threats with tariffs or visa restrictions to influence the COP talks too. "If they pull the same tactics, I think there's zero chance of having any sort of rallying around the Paris Agreement in response," one official told Reuters.

Secretary of the Interior Doug Burgum on Oct. 23 announced that he will open the entire 1.56 million acres of the Coastal Plain of the Arctic National Wildlife Refuge (ANWR) to oil and gas leasing. These lands are sacred to the Gwich'in Nation, home to irreplaceable wildlife, and have never seen industrialization.

In an action taken during a government shutdown, the Department of Interior (DoI) held a press conference to announce a series of resource development decisions aimed at opening up Alaska for the benefit of corporate interests. A key announcement was the rescission of the Biden administration's restrictive drilling program for the refuge. The DoI is now essentially replacing that program with the previous Trump-era plan to fully open the Coastal Plain of the ANWR to oil and gas development.