A new study has found that in West Africa Sahel climate change is making a difference in the storms. This area is between the Atlantic and the Red Sea. Climate change impacts has upset rainfall patterns making storms three times stronger than in the previous years. Sahel storms are considered among the most powerful around the world. In 2009, they caused flooding in Burkina Faso forcing 150,000 families to leave their homes. Scientists predict that in three decades, global warming will cause extreme events such as droughts, floods, heat waves and tropical cyclones.