Planet Earth provides us with the air, food, warmth, and materials we need to thrive. But Earth can also generate catastrophic disasters, from tsunamis and landslides to tornadoes and wildfires, that kill people, damage the environment, destroy property, and disrupt normal life. Such disasters may be sudden and violent, like an earthquake or flood, or gradual, like drought or the spread of a deadly disease. Today, scientists have shown that many such disasters are caused by the natural workings of our planet. There are more than 700 natural disasters every year, affecting around one person in 30.
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