This is the inevitable result of giving the government control over the environment.
Before the Iron Curtain fell, environmentalists focused on actual pollution - chemicals not found in nature that make people sick when they are dumped in the air, land or water. The only solution was more government control and higher taxes!
Then the Iron Curtain fell and most of the Eastern European countries were shown to be environmental cesspools. Communist and socialist countries have terrible environmental records when compared to capitalist countries, because people take much better care of their own private property than the government does when it controls all of the property.
So the environmentalist left shifted their focus from actual pollution to carbon dioxide, a trace gas that is not only found in nature but is essential to the continued existence of all life on Earth. Why carbon dioxide? Because capitalist countries, being more successful and providing a much higher quality of life, produce more carbon dioxide per capita than communist and socialist countries, which barely produce anything. The only solution is still more government control and higher taxes.
What’s a million Chinese?