Global carbon dioxide emissions from the power sector fell by 2% last year, the biggest fall since at least 1990, owing to reduced coal usage in Europe and the United States, a study showed on Monday.
Divisions within Europe and tension between the United States and China pose major challenges to the next round of United Nations talks on climate change.
The report prompted a prominent research group to boost its five-year installation forecast despite the Trump administration's steep tariffs on imported panels.
"Whenever you need energy, just give us a call," U.S. President Donald Trump said on a visit to Poland in the summer. Now, with winter setting in, Warsaw is taking him up on the offer.
