I agree. Climate change is a real problem. Fortunately the US is uniquely equipped to help. Here's a few things that are easy for the US to do:
1. Ban beef and racoon meat. Every time a right winger that thinks ketchup is a vegetable eats their 3rd New York steak of the day, the Amazon goes up in smoke. The health benefits alone would pay for all environmental initiatives over and over. And of course racoon is disgusting, a literal trash rat that nobody should eat. As a bonus India er Bharat would become a true core ally.
2. Ban pickup trucks and SUVs for non commercial purposes. There's no reason for an individual to own such vehicles which are commercial grade. Anything an SUV or truck can do for an individual outside of business, a minivan can do better.
China can also help, by specifically banning eating of racoon too and setting up a special education fund teaching about the harm of eating racoons.