Britain is home to the world’s largest floating solar farm. A practical bonus is that installing a farm on the surface of a reservoir prevents the water warming up and thereby suppresses the growth of algae.
A plague of algae is washing up on beaches in Brittany. Experts say only a drastic cut in nitrate fertilizer use will get rid of it, but farmers are reluctant to ditch the chemicals.
Lakes have been heating up around the world. Protecting streams, reducing pollution and creating sanctuaries for sensitive species could go a long way toward making lakes more resilient to climate change.
A reservoir not far from London has been fitted with 23,000 photovoltaic panels to make it the world’s largest floating solar farm. The site generates enough power to run the local water treatment plants for decades.
Clean water supplies are dwindling around the globe. To grow their crops, farmers resort to using untreated wastewater, which could make them sick - to an even greater extent than previously thought, a study finds.
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