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William Smith, associate professor in the School of Natural Resources and the Environment, was involved in a study recently published in Nature Climate Change, which revealed that over the past century, year-to-year precipitation variability has increased significantly on 49 percent of the world's grazing lands, affecting vegetation and constraining its ability to support livestock. The livelihoods and food security of some 800 million people around the world depend on livestock that graze on natural vegetation.

Arizona's earliest residents grew tepary beans for thousands of years, but in recent history the beans were at risk of shriveling into obscurity. UA professor Gary Paul Nabhan began researching the beans for his graduate thesis project. He thinks the beans are more than just a cultural relic, believing the drought-tolerant teparies could become a solution for growing food in a hotter and drier Arizona.

A UA-led team studied the natural temperature archives stored in coral and found the ocean around the Galápagos Islands has been warming since the 1970s.

In the February 2018 episode of the CLIMAS Southwest Climate Podcast, Mike Crimmins and Zack Guido chat about what's been going on in the Southwest over the past few months, since we last recorded a podcast.  In terms of precipitation, the answer is not much, unless the day in question is also a podcast day - the weather has an odd - but welcome - habit of raining on days we record the podcast.  In terms of temperature, the record to near record heat remains a key part of the winter story.