The COP30 climate summit in Belém, Brazil, has spotlighted global efforts to combat climate change with the release of the Climate Change Performance Index. This annual assessment, conducted by Germanwatch, the NewClimate Institute, and CAN International, evaluates the climate policies of 63 countries responsible for 90% of global greenhouse gas emissions. The 2025 report highlights a concerning drop for the United States, which now ranks among the bottom four nations in addressing the climate crisis, alongside Saudi Arabia, Iran, and Russia.
Each country’s ranking is determined by performance in four areas: greenhouse gas reduction, renewable energy development, energy use, and climate policies. Despite decades of reports, no nation has claimed the top three spots, indicating a global need for more ambitious climate action. Denmark, ranking fourth, leads due to its strong commitment to renewable energy, followed by the United Kingdom, Morocco, and Chile. Spain has improved its position, now 14th, reflecting its integration of EU climate laws into national strategies and its ongoing transition from fossil fuels.
“Spain continues its path of substantial emissions reductions with EU law integrated into national action plans,” states the report. “Green taxation policies and progressive incorporation of climate criteria in public procurement are vital in the ongoing transition from fossil fuels.” Under the leadership of Deputy Prime Minister Sara Aagesen, Spain seeks to heighten its climate ambitions during this pivotal summit.
The United States’ plummeting ranking is attributed to significant policy rollbacks under the current administration. “The U.S. receives very low ratings across the board, for GHG Emissions, Renewable Energy, Climate Policy, and Energy Use,” details the report. The administration led by Donald Trump has reversed key renewable energy initiatives and has promoted fossil fuel expansion, a move criticized by many experts.
Internationally, Trump’s decision to withdraw from the Paris Agreement, effective in January, and the absence of U.S. negotiators at COP30 have raised tensions. The administration has also threatened economic actions against nations supporting climate initiatives, such as a proposed tax on international shipping emissions.
Nonetheless, several U.S. representatives have taken a stand at COP30. Democratic Senator Sheldon Whitehouse remarked during an event, “the Trump administration is corrupted by the fossil fuel industry,” according to the EFE news agency. Meanwhile, California Governor Gavin Newsom criticized Trump’s climate policies, stating, “Trump is temporary, he is reckless, he is chaotic,” and urged countries to resist policies that undermine environmental efforts.
“People need to stand up. You need to stand up to a bully,” Newsom added, emphasizing the importance of continued global cooperation in the face of U.S. policy shifts. As the summit unfolds, the international community’s response to these challenges may shape future climate initiatives.
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