VICTORIA FALLS, Zimbabwe—Scientists and civil society are urging delegates from more than 170 countries represented at a summit here to step up ambitions to combat the continued destruction of Earth’s fastest-disappearing ecosystem.  Wetlands underpin all life on Earth, supplying fresh water, oxygen, habitat and food. Yet since 1970 more than 35 percent of wetlands have … Continue reading Earth’s Wetlands Are Disappearing and Global Efforts to Save Them Are Unraveling