Drought relief lies under our feet

Groundwater could be vital to sustaining clean water supplies, new research shows.

Almost 60% of the world’s yearly rainfall ends up as groundwater, yet most drinking and irrigation water comes from above-ground rainwater supplies. Groundwater is naturally cleaned and filtered through soil extraction of excess heavy metals and impurities, and could be used to help stretch water supplies in drought-affected areas.

However, clean groundwater supplies are currently threatened by poor land management policies which can lead to flooding and contamination of clean water supplies.

Read more at Pennsylvania State University