Ensia: Seven billion people and growing. A quarter of them living in poverty. Unsustainable — and unequal — resource use. Landscapes vanishing, along with their nonhuman inhabitants. Global warming upending natural systems. These are tough times on planet Earth. But while sustainability remains far from a global edict, hopeful signs of progress are poking up around the world. In some places, in some cases, we are doing things right, taking steady steps toward a smarter future. Here we offer seven of them…

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