NASA watches water to help grow our groceries

Every day—up to thirty times a day, in fact—one of Mark Mason's employees at Nature's Reward Farms in Monterey County, California brings him the results of a soil test for discussion.

Fecal records show Maya population affected by climate change

A McGill-led study has shown that the size of the Maya population in the lowland city of Itzan (in present-day Guatemala) varied over time in response to climate change. The findings, published recently in Quaternary Science ...

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