Biden's climate duo of Kerry and McCarthy puts U.S. back in global warming fight

WASHINGTON (Reuters) - An unlikely duo is steering President Joe Biden's efforts to restore U.S. credibility on fighting climate change: a patrician former presidential candidate and a plain-speaking, long-time civil servant – both with Boston roots and baseball loyalties. John Kerry and Gina McCarthy worked together under former President Barack Obama, when Kerry served as secretary of state and McCarthy led the Environmental Protection Agency.-- More...