Engineering the ocean
Once you know what plankton can do, you’ll understand why fertilising the ocean with iron is not such a crazy idea
Burning like a mountain
Fire has come roaring back into America’s West after a century of attempted extirpation. Can our land take the wild heat?
The fire burns yet
Native American peoples are still here and still caring for their land. Can their conquerors say the same?
Blue sky thinking
Geoengineers are would-be deities who dream of mastering the heavens. But are humans the ones who are out of control?
The ecology of Pooh
Adults may feel exiled from the intensity and sweetness of childhood places. But perhaps there are surprising ways home
Raining like a mountain
Electric fences are going up around Kenya's forested mountaintops. Is this the only way to keep Africa's water flowing?