Francisco DeVries invents a financing mechanism that makes rooftop solar affordable in Berkeley and other cities across California.
How low will it go?
If Eric Kuhn is right about the Colorado River, then the state faces a dry and difficult future of fighting for water.
Smithsonian Magazine: Steering Ships Through a Treacherous Waterway
Braving storms with 20-foot seas, an elite group of ship pilots steers through one of the world’s most treacherous waterways—the mouth of the Columbia River.
Mother Nature’s Sum
Scientists are working to put economic value on the natural world, hoping to create ecosystem-services markets that protect the environment. But are they really just putting out a contract on Mother Nature?
The Mog Squad
The venerable — and very German — quest for the ultimate weapon against wildfire.
A Really Inconvenient Truth
The climate problem can be solved. But tackling it is going to be a lot harder than you’ve been led to believe.