Wonder what the median age of those polled was to think that?
Check it out:

A recent survey found that Democrats believe the threat posed by climate change is greater than the threat posed by either al Qaeda or the Islamic State in Iraq and Syria (ISIS/ISIL).

The Pew Research Center/USA Today survey, conducted between Aug. 20 and 24, shows that 68 percent of Democrats said global climate change is a “major threat” to the U.S. while 67 percent chose al Qaida and 65 percent chose ISIS as a major threat to the country.