Another powerful contrast: flows of orange-and-black lava cover the white-and-black snowy landscape.
Thermoelectric generators probably won’t eliminate the charger for your Apple Watch, but for smaller, screenless wearables, the heat constantly escaping from your skin could fundamentally change how we power our devices.
This promising advancement could be a boon for disaster preparedness.
Warming air temperatures are causing glaciers to shrink by about 8% each decade.
Human activity is putting serious strain on groundwater supplies around the world, a new study suggests.
Forecasters are monitoring three cyclones set to make landfall on North American coastlines over the next two days.
Hurricane Isaias is expected to bring "life-threatening" storm surge, damaging winds, and heavy rainfall to Gulf Coast states.
Photo: Marco Di Marco (AP) 
