Even before it began, Sen. Ted Cruz’s subcommittee hearing Tuesday challenging the accuracy and objectivity of the science behind climate doomsday scenarios drew a heated rebuke from Senate Democrats.“We need to stop debating whether climate change is real. The science is settled, and Senator Cruz is out of touch,†said Sen. Tom Udall, New Mexico Democrat. “The American people want action. Most of Congress wants action. We need to work together and lead the world in...â€Mr. Cruz — the Texas Republican who heads the Senate Commerce Subcommittee on Space, Science and Competitiveness — said at the hearing that “public policy...