President Joe Biden, thwarted by lawmakers and the Supreme Court, sought Wednesday to revive his ambitions to tackle climate change as heat waves batter the United States and Europe. Rocketing summer temperatures have highlighted the growing threat, with 100 million people in the United States currently under excessive heat alerts and devastatingly hot conditions causing misery across Europe. President Biden, speaking in Somerset, Mass., on Wednesday, announced a new series of executive actions meant to address rising temperatures amid the ongoing climate crisis. pic.twitter.com/aXe6mzlMQ1 — T…