The sun gives off short wave radiation about half of this radiation reaches the earth and is absorbed by the earths surfaces this then warms it. Some of the short wave radiation is re-radiated and bounces of the surfaces of the world and heats the greenhouse gases which in turn heat the atmosphere.
From this graph we can see that before 1900 cars and other things needing fossil fuels were not invented so the temperature didn’t increase. After 1900 there was a rapid increase of co2 production this was caused by the increase in factory's using fossil fuels to power there machines. There is another dip just after 1950 which is because the war had tired the worlds resources and people where recovering now it is increasing this is because of the rise of electricity releasing more co2 and greenhouse gases increasing the temperature
The overall temperature of the world has increased by about a degree in the last 100 years this has had some knock on effects to the sea rise recently. It has melted the worlds glaciers and Antarctic ice sheet causing more water to be released into the seal. Also thermal expansion causes the volume the sea takes up to increase and this causes there to be more water in the sea
There are 5 main greenhouse gases in the atmosphere methane, nitrous oxide, halocarbons, ozone and carbon dioxide these are all a part of global warming and the more there then is the higher the amount of global warming
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There is a variety of different things that are happening thanks to global warming here are the major concerns due to the greenhouse effect. Ice is melting worldwide, especially at the Earth’s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice.
Researcher Bill Fraser has tracked the decline of the Adélie penguins on Antarctica, where their numbers have fallen from 32,000 breeding pairs to 11,000 in 30 years.
Sea level rise became faster over the last century.
Some butterflies, foxes, and alpine plants have moved farther north or to higher, cooler areas.
Precipitation (rain and snowfall) has increased across the globe, on average.
Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers. The insects have chewed up 4 million acres of spruce trees.
