Biden opening summit with ambitious new US climate pledge...
4:01am PDT - April 22nd, 2021 john daly - Associated PressWASHINGTON (AP) — President Joe Biden will open a global climate summit with a pledge to cut at least in half the climate-wrecking coal and petroleum fumes that the U.S. pumps out, a commitment he hopes will spur China and other big polluters to speed up effo…