Kudos to Rep. Chris Stewart for chairing his first climate change hearing ("Utah's Stewart leads climate change hearing," Tribune, April 26).
Climate change is hard because emissions have time-delayed effects that won't be observable for decades. By the time we see and feel the effects, it will be too late to fix the problem.
Ronald Reagan believed government should take actions that serve as insurance against environmental catastrophe. If scientists tell Stewart's committee we will have problems, even if they are not exact about details and timetable, emissions must be reduced.