YEs I think its true.

Better safe than sorry right. If we think warming is true, and it turns out not to be than the worst we have done is clean up the earth 'cause we were all freakin' out about warming the earth with all our pollution. So that's a good thing, right?

So we should all have the attitude that global warming is the biggest threat to humans ever and clean up this damned earth so we can keep growing buds for a long long time.!