Something tells me they don’t have much to worry about.

(The Hill) — Climate change is one of the greatest challenges facing young people, President Obama said in a recent interview with young reporters from Scholastic News.

“Another big challenge that your generation is going to face is the environmental challenge,” Obama said in an interview with Scholastic News Press Corp. that was conducted in July but posted online this month.

“Although we’ve made big improvements over the last 20 or 30 years in making our air clean and our water clean, there are some big challenges around climate change.”

Obama said climate change is caused by “pollution that we’re sending up into the air, the carbon that we’re releasing.”

The president’s comments come as Republican presidential candidates, including Rep. Michele Bachmann (R-Minn.) and Texas Gov. Rick Perry (R), are questioning climate science on the campaign trail.