John Kerry has told President Biden he plans to resign as special envoy for climate—a job created for him— by spring. The former secretary of state and US senator told the president on Wednesday and his staff on Saturday, the New York Times reports. Kerry will instead work on Biden’s campaign, per Axios, considering the president’s reelection vital to protecting the environment. The 80-year-old plans to put climate change issues to voters in the context of Biden’s campaign. Since early 2021, Kerry has traveled the world to persuade nations to cut greenhouse gas emissions that are heating up th…