Field Notes from a Catastrophe: Man, Nature, and Climate Change

Americans have been warned since the late 1970s that the buildup of carbon dioxide in our atmosphere threatens to melt the polar ice sheets and irreversibly change our climate.

With little done since then to alter this dangerous path, the world has reached a critical threshold.

By the end of the century, it will likely be hotter than at any point in the last two million years, and the sweeping consequences of this change will determine the future of life on earth for generations to come.