Energy & Green Tech

In Iceland, CO2 sucked from the air is turned to rock

At the foot of an Icelandic volcano, a newly-opened plant is sucking carbon dioxide from the air and turning it to rock, locking away the main culprit behind global warming.

Engineering

Device mimics the mangrove's water-purifying power

The mangrove tree survives in its subtropical habitat by efficiently converting the salty water of its environment into fresh water—an engineering feat that has long baffled scientists.

Robotics

Can a robot operate effectively underwater?

If you've ever watched Planet Earth, you know the ocean is a wild place to live. The water is teeming with different ecosystems and organisms varying in complexity from an erudite octopus to a sea star. Unexpectedly, it is ...

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