Solutions www.popsci.com A carbon-neutral burger? It’s not impossible. Nancy Ranney says she’s increased the number of cattle while at the same time building soil carbon and increasing the biodiversity of native grasses.
Impacts www.bbc.com The wall holding back a desert There is a wall appearing across the African continent, dividing north and south. But this wall isn’t to keep migrants out, or to keep smuggled goods in check. It is holding back sand.
