Around 20 000 elephants are killed in Africa every year for their tusks, costing the tourism sector millions of dollars, says conservation group WWF
Nearly half of world's natural heritage sites - 71% of sub-Sahara Africa's - at risk, including Victoria Falls, Kilimanjaro
1.78 million people depend on sub-Saharan Africa's heritage sites for livelihood
Global marine populations have been slashed by half since 1970 due to human activity, startling new study shows
WWF's Living Blue Planet Report says while the damage is immense, the ocean is a renewable resource--but there's no time to waste.