THREATENED
Climate change
Weather and climate are not the same. Wheather is how hot, cold or wet a polace is at a particular time. Clomate is the average weather of an area over time. Several things decide the climate of an area, including how far it is from the Equator, how far from the sea, its height above sea level and its wind systems. The position of a place on an area of land and the size of that land area also affects the climate. Scienctists devide the world into different climate regions: polar and tundra, temperate, tropical, desert and mountain.
The world's climate have changed naturally throughout history. For example, much of Europe and parts of Africa were covered by ice for 100,000 years during the last Ice Age, which ended 10,000 years ago. In recent times, scientists have become concerned that human activities, such as burning fossil fuels, are producing greenhouse gases such as carbon dioxide, and these are causing global warming.
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