The sun gives off short wave insulation. Absorbed.The insulation is then re-radiated as long wave radiation. This is absorbed in the atmosphere. This means that Greenhouse gasses also absorb the radiation and in turn, this heats the gasses which subsequently, heats the atmosphere.
Is global warming actually happening? This graph proves that global warming IS happening. Over the last thousand years the average temperature has risen by 0.8 degrees celsius.
The sea levels have raised 20cm from 1880 to 2000. At first it was a steady incline and then it was a rapid incline. The sea levels are rising because when water heats up it expands meaning it fills up more space and also when the ice caps melt more water is produced.
Carbon dioxide is through cars and trains for eg. Methane through marshes and mudflats. Halocarbons through refrigerators and air conditioning. Nitrous oxide through agriculture. Ozone throughmostly hydrocarbons and nitrogen oxide compounds.
Less deaths due to cold weather. Canada’s North-West Passage may become ice-free and can be used by shipping. Island such as Maldives will disappear due to rising sea levels. Some species endangered/extinct e.g. polar bear.
Greenhouse gases are holding in the heat of the atmosphere due to pollutants. Subsequently heating up the earth. This causes the ice caps to melt and creates many significant problems.
