Nasser Nasser, AP
In this Sunday, Dec. 6. 2008 file photo, Egyptians drive under a polluted sky in Cairo, Egypt.

After reading former Sen. Bob Bennett's "Cool off the global warming debate" op-ed, I felt at peace with those few who insist that there's still a debate to be had about global warming (April 29). For those persuaded by oil industry-funded distortions of science — rather than the overwhelming consensus that global warming is happening, we're causing it and we must act quickly to address it — the reality before our very eyes will catch up with them.

Most Americans have drawn the right conclusions from events like a nationwide drought unlike any since the Dust Bowl or from longer trends in rising temperatures. The National Oceanic and Atmospheric Administration found that 2012 was the warmest American year on record, and NASA tells us that nine of the 10 warmest years on record in the U.S. have occurred since 2000 — and that every single month since February 1985 has seen global average surface temperatures above the 20th century average.

For the majority of us, it's now about what must be done to limit pollution to levels science says are safe. Three million Americans have asked the Environmental Protection Agency to finalize pollution standards for new power plants. I urge the EPA to finish the job.

Alyssa Gill

Environment America

Washington, D.C.