Sunsets across Florida in the coming days could become even more spectacular, as clouds of dust from the Sahara desert sweep in across the Atlantic coast.
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.
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.
