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Southern Africa can’t catch a break: Armyworm destroys crops

The return of rain following the end of El Niño should be good news for farmers in Southern Africa. But a pest from the Americas is ruining everything. Countries recovering from the two-year long drought that caused widespread food insecurity now face a rapidly spreading crop killer. The invasive fall armyworm is destroying maize across the region and spreading quickly from country to country serving a “blow to prospects of recovery” for the region, says the U.N. Food and Agriculture Organization (FAO).

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Scientists invent air filter that’s cheaper, greener, better – and soy

As air pollution continues to plague China, India and cities around the world, researchers have developed a new air filter that can block 99.94 percent of the most harmful particulates in smog as well as toxic chemicals that existing filters miss, including carbon monoxide, formaldehyde and sulphur dioxide. Even better, it’s inexpensive and eco-friendly, because it’s made of paper towels, bacteria and soybeans.

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