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Global warming, conceptual image
Global warming. Conceptual image of global warming, showing the Earth sweating. The Earth is surrounded by factories and industrial buildings, cars, trucks and cows, which show how excesses of certain gases (water vapour, carbon dioxide, nitrous oxide and methane for example) are making their way into our atmosphere. These emissions trap heat in Earth's atmosphere, a phenomenon known as the greenhouse effect, and contribute to global warming and climate change.
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