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Climate Change Causes and Impacts, Human Causes, Natural Causes, UK…
Climate Change Causes and Impacts
Burning fossil fuels
eg coal, gas and oil - these release carbon dioxide into the atmosphere
Deforestation
- trees absorb carbon dioxide during photosynthesis. If they are cut down, there will be a higher amount of carbon dioxide in the atmosphere.
Dumping waste in landfill
- when the waste decomposes it produces methane.
Agriculture
- agriculture practices lead to the release of nitrogen oxides into the atmosphere.
Orbital changes
- the Earth has natural warming and cooling periods caused by
Milankovitch cycles
or variations in the tilt and/or orbit of the Earth around the Sun (Wobble, roll and stretch theory).
Volcanic activity
- during a volcanic eruption carbon dioxide is released into the atmosphere.
Solar output
- there can be fluctuations in the amount of radiation from the Sun. If there is high amounts emitted there will be an increase in Earth's temperatures.
Sea levels could rise
, covering low lying areas, in particular East England
Scotland ski resorts may have to close
due to lack of snow
Droughts and floods become more likely
as extreme weather increases
Increased demand for water in hotter summers
puts pressure on water suppliers
Sea level rise
will affect 80 million people
Tropical storms will increase in magnitude
(strength)
Species in affected areas may become extinct
(eg in the Arctic)
Disease such as malaria increase
, an additional 280 million people may be affected
Human Causes
Natural Causes
UK Impacts
Global Impacts