Groundwater to heat over 3 degrees C by century end, risking safety: Report

Groundwater is projected to warm by 2-3.5 degrees Celsius before the turn of this century, potentially risking water quality and safety, apart from threatening ecosystems depending on the resource, a new research has found. The "world's first global groundwater temperature model" predicted the highest warming rates in Central Russia, Northern China and parts of North America, and the Amazon rainforest in South America. A team of researchers, led by those from the Karlsruhe Institute of Technology, Germany, said while a lot of focus on climate change concerns weather events and water availability, we also need to think about how it impacts groundwater, critical to life on the planet. Warming of groundwater can adversely impact ecosystems relying on them, they said. "Rivers rely on groundwater to keep flowing during dry times. Warm waters hold less dissolved oxygen," explained study co-author Gabriel Rau from the University of Newcastle, UK. The model also estimated that by 2100, 60