If Americans in 2100 came to see 12 meters sea-level rise as inevitable by 2200, who can even begin to fathom how the nation would respond?

Do believe that if we fail to act in time, it will be the single biggest regret any of us has at the end of our lives.

By the end of the third decade of this century, all of American life - politics, international relations, our homes, our jobs, our industries, the kind of cars we drive - will be forever transformed by the climate and energy challenge.

The science is crystal clear: we humans are the primary cause of global warming, and we face a bleak future if we fail to act quickly.

When people ask me what they should do, I reply, "Get informed, get outraged, and then get political."

Hurricane seasons with four or more super-hurricanes, those with sustained wind speeds of 131 mph or more will soon become the norm.

If Americans in 2100 came to see 12 meters sea-level rise as inevitable by 2200, who can even begin to fathom how the nation would respond?