Global warming

From grey to green urea
A pathway to decarbonisation, green growth, and jobs.
The chilling effect
Among scientists and policymakers, there is a sense of urgency to reimagine cooling. Our Cover Story envisions that future.
Technologies to cool the world
Scientists are working on technologies to bring down temperatures — of places and people — sustainably.
Materials that cool sustainably
The hunt is on for materials that can bring temperatures down without using power.
Diving deep for answers to the climate crisis
Marine biologist Antje Boetius on changes in the Arctic ice cover and its relationship with life.