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pilot project that sought to demonstrate that carbon dioxide emissions could be locked up by turning them into rock appears to be a success. Tests at the CarbFix project in Iceland indicate that most of the CO2 injected into basalt turned into carbonate minerals in less than two years, far shorter a time than the hundreds or thousands of years that scientists had once thought such a process would take. Read more: http://www.smithsonianmag.com/science-nature/iceland-carbon-capture-project-quickly-converts-carbon-dioxide-stone-180959365/#GpYzrDcLOjF1tUZx.99 Give the gift of Smithsonian magazine for only $12! http://bit.ly/1cGUiGv Follow us: @SmithsonianMag on Twitter

Researchers in Iceland found a new way of tackling climate change by pumping carbon dioxide underground and turning it into stone.

A changing climate means less rain and lower water supplies in regions where many people live and much of the planet's food is produced: the mid-latitudes of the Northern and Southern hemispheres, including the U.S. Southwest, southern Europe and parts of the Middle East, southern Africa, Australia and Chile. As WRI-Aqueduct's future scenarios for water supply show, diminished water supplies will be apparent in these areas by 2020 - less than four years away - and are expected to grow worse by 2030 and 2040.