Sheldon Whitehouse actually said...

I contend that America is on the losing end of the largest transfer of wealth through theft and piracy in the history of mankind.

The concentration of carbon dioxide in the atmosphere is not a theory, it is a fact.

I think that the theory that the executive branch can't act or decide or respond to reality until Congress has directed it to is a mistake.

It is textbook science, it is not a theory in that sense. It is fully established and virtually unchallenged.