THIS WEEK’S #1 CLIMATE STORY: You’re in for an unusual climate change story. Researchers in Germany have determined cows can be trained to use an astroturf area called a “MooLoo” to relieve themselves, according to research published this week in Current Biology. When cows pee outdoors, their urine breaks down in the soil into nitrous oxide, a potent greenhouse gas. Indoors, cow urine mixes with feces and produces excess amounts of ammonia. Using this “MooLoo,” the urine can then be collected and disposed of with reduced impacts, including potentially by being used to make fertilizer. The study was mostly about determining whether cows can be potty trained, and so did not estimate the climate potential of the cow urinals...
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