U.S. military and intelligence officials are factoring the symptoms of climate change into their estimates of where and what kind of conflicts are in store.
Scientists propose guardrails for how far mankind can push the planet tomorrow, while others examine how far collapsed civilizations pushed it yesterday.
Overcoming inertia on climate change is unlikely to take place through the time-honored methods of hectoring and lecturing. Perhaps a little salesmanship and psychology is called for.
Biologist Brian Helmuth has observed firsthand the devastation wrought by climate change, but he's also seen how ecological forecasting can prepare us.
Sailing from the Atlantic to the Orient across the roof of the world has been the dream of Arctic explorers and world traders for centuries. It saves fuel, too, so what's not to like? Well ...