I like your point about the policy rollbacks and how they could slow progress on climate action, but I think your argument would be stronger if you included a second source to balance the Climate Action Campaign. Since you mentioned that the source may have some bias, it would help to compare it with something like a government report or data from organizations like the EPA or NASA.
Also, when you say “worst,” it might help to define what criteria you’re using. Are you measuring emissions increases, policy changes, or global impact? Better clarification can make your conclusion more precise and easier to evaluate.