New Delhi, April 9 -- As the world witnessed its first full year of temperatures exceeding the 1.5deg Celsius guard-rail in 2024 and calls to raise ambitions on climate action grew, the biggest historical emitter of greenhouse gases elected a leader who is not only slamming the brakes on climate action by his own government but also posing a threat to other well-intentioned actors within the US and elsewhere.

The scale and speed with which Donald Trump's executive orders have been implemented have left the world gasping and researchers scrambling to figure out their implications for climate progress. The need to respond to a flurry of US policy announcements-with their significant impact on economic growth rates globally-has distracted g...