Ecologist Daniel Janzen wades into the field, clutching a walking stick in one hand and a fist full of towering green blades of grass in the other to steady himself. Winnie Hallwachs, also an ecologi… [read more]
/cdn.vox-cdn.com/uploads/chorus_asset/file/25249712/246961_Costa_Rica_Renewables_2_IVargas.jpg "They turned cattle ranches into tropical forest — then climate change hit")
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