They have been there for at least 10 years...
So, 100% of our activities are causing catastrophic climate change. What percent of our efforts can counter this? 10% ? Laugh out loud. We couldn't marshal that kind of effort on our best day. I mean, counter all the fires, autos, factories, polluters. Sure. 10% is a pipe dream. So if you can marshal 10% effort, you just move 12 years to 13.2 years. What a joke.
The leftist zombies infested that host many many years ago...