You may hear that the global warming is caused by George Bush or divorce, but that is not the truth at all. The truth is there are many things which cause the global warming, for instance:
Natural Causes:
This is the release of methane gas from frozen tundra and wetlands. Methane is a greenhouse gas. Another natural cause is that the earth goes through a cycle of climate change.
Man-made Causes:
Man-made causes possibly do the most damage to our planet. There are many man-made causes of global warming. Pollution is one of the biggest man-made problems. There are many examples of pollution types for instance burning fossil fuels which release methane, carbon dioxide from power plants, carbon dioxide emitted from cars and carbon dioxide from airplanes.
Global Warming will have a serious impact in the future for instance: the temperature will increase across the world and the ice in the North Pole will melt. Also global warming will affect agriculture. New crops will be able to be grown in areas that are currently too cold. Global warming will also affect human health. There may be more heat-related illnesses in hotter summers, and increased breathing problems as higher temperatures increase air pollution in cities, reducing air quality.
In my opinion the main causes of global warming is human activities because of what I have written above.
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