Sustainability

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.
These batteries power up a green future
Start-ups are working on batteries with new chemistries, designs and raw materials for a green future.