What you need to know about the upcoming UN global climate summit
CBSN
President Donald Trump pulled out of the Paris Agreement. President Joe Biden rejoined on his first day in office. But Senate Democrats are still fighting over new climate legislation that would give Mr. Biden something to brag about as the U.S. attempts to reassert itself as a leader at next week's global climate summit.
The countries that adopted the Paris Agreement in 2015 -- now nearly every country in the world except Iran, Iraq and Turkey -- are to meet every five years to update their ambitions. The summit was delayed last year because of the pandemic.
This year, the goal is to prove that countries take the priorities seriously and are working on issues such as methane emission reduction, enacting a global carbon market and weaning countries off coal production.
