How Joe Biden can Reach out to Red States on Climate Change | Opinion Mead Treadwell , Former Lieutenant Governor of Alaska On 4/23/21 at 7:00 AM EDT Earth Day comes every year, but this time it was just one more day in a busy year of climate diplomacy. Boris Johnson will convene a climate-focused G7 summit in the U.K. this June. A formal follow-up in Scotland to President Joe Biden's rejoining the Paris Climate Accord is scheduled for this November. The U.S. chief climate negotiator, John Kerry, will need every diplomatic skill he learned as secretary of state to restore economic growth while reducing greenhouse gas emissions.