now, even director mccarthy from the epa in answering questions from congressman pompeo before our committee, said reaching all of the 26 u.s. goals is not going to have an impact globally. and, david, what we have to look at is the fact that you don't make good laws, sustainable laws when you're making them on hypotheses or theories or unproven sciences. >> bill nye? >> well, once again, the congresswoman is trying to introduce doubt, and doubt in the whole idea of climate change. so what i would encourage everybody to do is back up and let's agree on the facts. would you say that the antarctic has less ice than it used to? when you asserted, congresswoman, that a change from 320 to 400 parts per million is insignificant? my goodness, that's 30%. i mean, that's an enormous change, and it's changing the world. that's just over the last few decades. you go back to 1750 with the invention of the steam engine, i mean, everybody's been over this a lot, it's gone from 250 to 400. there is no debate in the scientific community. and i can encourage the congresswoman to look at the facts. you are a