We Are Undergoing Unprecedented Loss of Freshwater Across the Planet

Arthur T Knackerbracket has processed the following story:

Rising temperatures are causing water to evaporate and driving humans to extract more groundwater, which is moving freshwater from the land to the seas and creating a "continental drying" trend. Water is being depleted at sites around the world

Intensive groundwater pumping, evaporation and melting due to rising global temperatures have shifted a growing amount of freshwater from the continents to the oceans. This threatens water availability for most of the world's population and adds to sea level rise.

These measurements show there have been alarming declines in freshwater in many parts of the world between 2002 and 2024. The researchers found dry regions aren't just getting drier - a trend expected with climate change - they are also expanding by more than 800,000 square kilometres per year, an area about the size of the UK and France combined.

The team identified four mega-drying" regions where separate areas of freshwater loss have now connected to create a swathe of drying. Those include northern Canada and Russia, where loss is driven by melting glaciers, permafrost and reduced snow.

In the other two regions, water loss is dominated by groundwater depletion, mainly from pumping for irrigation. Those are the US Southwest, much of Central America and a region stretching from western Europe and North Africa to northern India and China. They found groundwater depletion, which can be exacerbated by heat and drought prompting people to pump more, makes up 68 per cent of the decline in overall water storage.

This transfer of mass is so large it has become a major contributor to sea level rise. They found since 2015, water loss from the continents has caused more sea level rise than meltwater from the Antarctic or Greenland ice sheets, raising the oceans by just under a millimetre per year.

Read more of this story at SoylentNews.