EcoWatch: [Editor`s note: Last week, Sen. Ted Cruz held a hearing that attacked the clean air and clean water safeguards that protect millions of American families. During the hearing, Sen. Cruz relentlessly questioned Sierra Club President Aaron Mair on the validity of global warming, relying on classic climate denier arguments. On Thursday, Mair responded to Sen. Cruz`s attack on climate science.]
In the U.S. Senate, witnesses at committee hearings swear to tell the truth. Unfortunately, the senators...