Idea Watch

Stories about the people and projects pushing the boundaries of climate mitigation and sustainability

The World Is Our Battery

BatteryBatteries don't have to be small or even portable. Here are five ambitious technologies that store energy in the rocks, water, and air all around us.

The World Is Our Battery

Human waste is a terrible thing to waste

Off-grid energy production is becoming affordable for smallholders, restaurants, and even families—thanks to a startup’s innovative biodigesters that turn food and feces into carbon-neutral cooking gas, fertilizer, and hot water.

Biogas

Eat Globally

Some experts are beginning to question whether locavorism is an effective solution to ensuring food security on a warming planet

Eat Globally