Overgrazed

When Meredith bought this northern Texas land several years ago, it was overgrazed and overrun with weeds. Now, she’s thrilled to find a dark green blob of fungus she rolls under her sparkly-nail-polished thumb.

Grasslands and the soils beneath them act as giant carbon sinks, the report notes. But not if they are overgrazed.

Alix Turner sees his sheep farm in this rolling corner of New South Wales as a giant carbon sponge. He rotates his 1800 sheep through a series of fields. As a result Turner says the land is not overgrazed and can absorb greater levels of carbon dioxide.