By Reuters Staff 9 Min Read (Reuters) - President-elect Joe Biden is expected as soon as Wednesday to name key members of his core team that will help him overhaul U.S. energy and environment policy to fight climate change, with a goal of bringing the economy to net-zero emissions by 2050. U.S. President-elect Joe Biden pauses as he delivers a televised address to the nation, after the U.S. Electoral College formally confirmed his victory over President Donald Trump in the 2020 U.S. presidential election, from Biden's transition headquarters at the Queen Theater in Wilmington, Delaware, U.S., December 14, 2020. REUTERS/Mike Segar