Another one for the weird science file.
New research shows that although the world is seeing more rain overall, it's also getting drier at the same time.
How can that be? In simple terms, the world's rainfall is increasingly packed into bigger storms with longer dry spells in between. And a lot of rain all at once causes problems for overwhelmed soil.
The findings say the study is the first to demonstrate that a year's worth of rainfall packed into bigger and wetter storms means less water for aquifers and ecosystems, even if total precipitation increases. Because soil can absorb only so much water at once, what is not soaked up collects on the surface where it's more readily evaporated.
Study lead author Corey Lesk, who led the study while a fellow at Dartmouth College, explained it in an email to USA TODAY: "Regardless of how much precipitation falls, when rain and snow come in stronger bursts separated by longer dry spells, less water tends to remain on the land (in soils, lakes, and groundwater) for use by people and nature."
