Paris climate agreement faces challenges in limiting global warming as U.S. plans withdrawal

The 2015 Paris climate agreement aims to limit global warming to below 2 degrees Celsius. It is a voluntary pact where countries set their own emissions goals, with no penalties for failing to meet them. The U.S. plans to withdraw, joining a few other nations outside the agreement. The U.S. has historically contributed less to global climate aid than its share, despite being a major polluter. Currently, the U.S. provides about $11 billion annually, while a goal of $300 billion in aid from wealthy nations to poorer ones has been set, though the U.S. disputes its binding nature. Recent assessments show the world is on track for a temperature increase of 2.7 degrees Celsius. While the Paris Agreement has led to some progress, experts note it is not enough to prevent significant climate impacts, including extreme weather events.