An estimated 90% of the nation's coral reefs have been destroyed, creating a knock-on effect for the entire coastal ecosystem. Local businesses and conservationists are now working to reverse this damage.
Over 30 mayors from across the globe have pledged to deliver clean air for the 140 million people living in their cities. Delivering clean air on such a scale will take both ambitious targets and concrete action.
Across the Central American Dry Corridor, communities are facing increasingly extreme weather. In Nicaragua, the region's poorest country, subsistence farmers like Blanca Landero Betarco face a daily battle.
As people fell trees to get wood for cooking, Mali's trees are disappearing at rapid speed. A reforestation expert who has been dubbed 'the forest maker' is working with farmers to restore the country's woodlands.
The people at the foot of the Rwenzori glacier in Uganda want a switch to renewable energy to save the snow on the mountaintop, which is melting fast. Their goal: 100 percent green energy by 2020. Will they succeed?
When the rain comes too late or not at all, it can be a matter of life and death for Mali's farmers. Vegetable gardens with smart irrigation can save them.
