Greece's ancient sites get climate-change checkup

Worsening wildfires, soaring heat waves and rising water levels have prompted Greek officials to take a closer look at protecting priceless archaeological sites that draw hundreds of thousands of visitors each year.

This drone reveals what lies beneath snow and soil

Using self-developed drones and advanced sensors, researchers can now see both under the snow and into the ground. The scientists' goal is to reduce societal risk and environmental encroachment.

As polar ice changes, so do the rules governing it

Sea ice is not just solid frozen water. It's riddled with tiny pockets and channels of liquid brine. Whether those pockets connect to form pathways determines whether seawater, nutrients and gases can move through the ice, ...

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