Climate Crisis

How wonky cell phone signals help track wildfire smoke
How balloons could soak up carbon and fight climate change
This laundry detergent is made from recycled carbon
Look at how much the planet has changed in four decades with Google Earth Timelapse
Rare wild coffee species brews hope for coffee’s future
Solar canals in CA could save 63 billion gallons of water a year
Can seaweed save the planet?
How tech helped beat back locust swarms in east africa
Autonomous trash-eating boats clean up water pollution
The world's whitest paint can cool your house — and the Earth