12.1.5

Effects of Climate Change on the Environment

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Effects of Climate Change on the Environment

The Paris Agreement of 2015 tried to agree to limit the impact of climate change. By 2100, current policies are expected to lead to 2.8-3.2°C of warming. 4.8°C of warming is a worst-case scenario. Potential impacts include:

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Melting ice

  • Melting ice causes sea levels to rise, which could flood coastal habitats and move the coastline inwards. This would forever lose the land and associated biodiversity.
  • Most ice is stored in ice sheets at the Arctic and Antarctic.
  • Changes to the way sea ice changes throughout the year are already affecting the survival of animals at both poles.
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Sea surface temperature increase

  • Rising sea surface temperatures are causing bleaching of sensitive corals.
  • Higher sea surface temperatures would also lead to more cyclones and more severe cyclones as they would have more energy from the warm water. Hurricane Katrina caused an estimated $125bn of damage. These events would become more common in a hotter Earth.
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Changing distribution of species

  • Malaria-carrying mosquitoes, which don't live in temperate climates may be able to inhabit more and more countries in the world.
  • It is possible that malaria and similar exotic diseases will become an established part of life as far North as the UK in the near future.
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Reduction of biodiversity

  • The rate at which the climate is changing makes rapid adaptation key to avoiding extinction. Evolution takes place over thousands or millions of years. Evolving to a warmer Earth cannot happen in 100 years.
  • Species that are specially adapted to the habitats which are being damaged and destroyed by climate change are at risk of extinction.
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Changing precipitation patterns

  • Global warming is affecting the amount of rain that areas get and also the times of year that they get it.

Jump to other topics

1Geography Skills

2Geology of the UK

3Geography of the World

4Development

5Weather & Climate

6The World of Work

7Natural Resources

8Rivers

9Coasts

10Glaciers

11Tectonics

12Climate Change

13Global Population & Inequality

14Urbanisation

15Ecosystems

16Life in an Emerging Country

17Analysis of Africa

18Analysis of India

19Analysis of the Middle East

20Analysis of Bangladesh

21Analysis of Russia

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