Well, the title "An Inconvenient Truth" is a way of highlighting the reasons why some people, including the president, don't seem to accept the truth.

We must quickly mobilize our civilization with the urgency and resolve that has previously been seen only when nations mobilized for war. These prior struggles for survival were won when leaders found words at the 11th hour that released a mighty surge of courage, hope and readiness to sacrifice for a protracted and mortal challenge.

This is by far the most serious crisis civilisation has ever faced.

When we respond to threats immediately and take action right away, it's usually the threats that we're hard-wired to respond to, the kinds of things that our ancestors survived.

George Bush taking credit for the wall coming down is like the rooster taking credit for the sun rising.

...the emergent capabilities bursting forth from the revolutionary advances in the life sciences are about to make us the principal agent of evolution.

A zebra can not change it's spots.