PhysicsFridges made from plastic crystals could help cut carbon emissions Cooling devices like refrigerators and air conditioners consume a quarter of the world's electricity, but a plastic-based material could make them much greener News
EnvironmentSeven steps to save the planet: How to take on climate change and win It's the biggest challenge humanity has ever faced, but we can keep global warming to within the "safe" boundary of 1.5°C. Here's how we do it Features