Documented in the effects of Global Warming in the sahara. More than a 3rd of our planet is made up of deserts and dry lands and that percentage is rising every year an additional 70000 square kilometers of fertile land turns to deserts the main course is a deforestation over grazing on the over use of Water Resources all of which deplete the soil of essential minerals with temperatures set to rise over the coming decades the rate of disaster for cation is likely to speed up considerably more to scarcity is already a problem for 1000000000 people most of them in africa. The world risk index says the situation is particularly precarious in the star held region. Lake chad in West Central Africa people here have lived from fishing and farming for thousands of years. It appears the democrat at 1st glance. But one of the worlds biggest environmental catastrophes is unfolding here. 20 years ago the lake surface shrank by 90 percent and now Climate Change has brought extreme weather thats des