carbon dioxide - Gas emitted by burning fossil fuels, methane - Gas emitted by burping cattle, CFC - Gas emitted by old cooling units, dust - Material from volcanoes which blocks the sun, sunspot - Area of intense activity on the surface of the sun, orbit - Changes in this mean the earth is sometimes further from the sun, permafrost - This is melting - releasing methane, rice - Methane is released when this crop is grown, landfill - Where we send our rubbish to decompose,

Causes of climate change

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