Biden wants 50% cut in greenhouse gas emissions by end of decade. What will that take?

On Thursday, President Joe Biden unveiled an ambitious plan to cut U.S. greenhouse gas emissions in half by the end of the decade. The announcement helped kick off a virtual climate summit with leaders of 40 countries, including China, India, and Russia.

His administration aims to reestablish the U.S. as a world leader on climate change after former President Donald Trump pulled the nation out of the Paris Agreement and pushed for deregulation.