Democratic presidential candidate Joe Biden campaigns with former Democratic presidential candidate John Kerry on Dec. 6, 2019 in Cedar Rapids, Iowa. Credit: Win McNamee/Getty Images With the climate task force that Joe Biden named Wednesday, the presumptive Democratic presidential nominee is making a clear bid to bridge the divides in his own party that threaten his candidacy and the long-term fight for action on global warming. In tapping as co-chairs Rep. Alexandria Ocasio-Cortez (D-N.Y.), the avatar of the Green New Deal, and former Secretary of State John Kerry, an architect of the Paris climate accord, the former vice president signaled his endorsement of ambitious goals—but ones that build on the accomplishments of the past. With task force members from Michigan and Florida, Biden named representatives from key swing states while acknowledging the need for a climate policy broad enough to help communities navigating economic transition and coping with sea […]