It’s all about the control.
Check it out:

Ultimately, it will not matter if people in government cynically promote the theory that human activity is destroying the global climate as a means of taking control of your life, or if they take control of your life because they sincerely believe human activity is destroying the global climate.

Either way, government will control your life.

The National Climate Assessment the Obama administration released this week describes in Sisyphean terms the task government faces in limiting carbon dioxide emissions, which the assessment says make up 84 percent of the greenhouse gas emissions it holds guilty of artificially warming our planet.