(CNN) — There is no precedent in contemporary weather records for the kinds of droughts the country’s West will face, if greenhouse gas emissions stay on course, a NASA study said. No precedent even ...

"Megadroughts are persistent, multi-year drought events that stand out as especially extreme in terms of severity, duration, or spatial extent when compared to other droughts of the last two thousand ...

Climate change is affecting a seemingly endless number of things, in increasingly drastic ways. Especially lengthy periods of dry weather -- persistent, multi-year droughts, have become more common ...

This story is part of the Grist series Parched, an in-depth look at how climate change-fueled drought is reshaping communities, economies, and ecosystems. On an afternoon in late June, the San Luis ...

Increasingly common since 1980, persistent multi-year droughts will continue to advance with the warming climate, warns a study from the Swiss Federal Institute for Forest, Snow, and Landscape ...

SACRAMENTO — California’s weather patterns certainly have been unusual this winter, with the Sierra snowpack hitting record levels, massive flooding throughout the valleys, and slight smatterings of ...

ROME (Thomson Reuters Foundation) - Climate change will unleash megadroughts in the coming decades worse than anything seen in the last 2,000 years, new research warns. In semi-arid regions such as ...

For centuries, California and the rest of the southwestern United States have been spared the multi-decade megadroughts that afflicted the region before 1600. But the Southwest’s lucky streak could ...

Exceptionally severe and persistent droughts – or megadroughts – have wreaked havoc on human societies for thousands of years. A megadrought in northern China between AD 1627 and 1643, for instance, ...