Global warming, along with the cutting and burning of forests and other critical habitats, is causing the loss of living species at a level comparable to the extinction event that wiped out the dinosaurs 65 million years ago. That event was believed to have been caused by a giant asteroid. This time it is not an asteroid colliding with the Earth and wreaking havoc: it is us.

An Inconvenient Truth: The Planetary Emergency of Global Warming and What We Can Do About It (ed. Rodale, 2006) - ISBN: 9781594865671