Joe Biden looks to shore up climate credentials for Earth Day

John J. Kim/Chicago Tribune/Tribune News Service via Getty Images Joe Biden won key environmental endorsements this week as the 50th anniversary of Earth Day focuses attention on climate change. Longtime proponents of climate action Al Gore and Jay Inslee announced today that Biden has their endorsement. The League of Conservation Voters endorsed Biden on April 20th, potentially unlocking tens of millions of dollars in funding if the group continues the big spending it’s put into previous