What is the evidence that global warming activists use to advance the idea that humans are causing global warming ?

The confirmation that man-made CO2 is causing a global warming resembles the chain of proof in a court case. CO2 keeps the Earth hotter than it would be without it. People are adding CO2 to the environment, for the most part by consuming non-renewable energy sources. What's more, there is observational proof that the rising temperatures are being caused by the expanded CO2.

True is the correct answer

Dcalifornia they have the most people with 200+ people per square mile