1.4.4

Human Causes of Climate Change

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Human Factors and Climate Change

The following human activities are increasing the atmospheric concentration of greenhouse gases:

Burning fossil fuels

Burning fossil fuels

  • Fossil fuels include coal, petrol, natural gas and oil.
  • When fossil fuels are burned, carbon dioxide is released.
Cement production

Cement production

  • Limestone, which is a carbon-based compound, is the starting material for making cement.
  • This carbon is released as carbon dioxide when cement is made.
Farming

Farming

  • The digestive systems of cows produce lots of methane.
  • Rice paddies also emit lots of methane.
  • Methane is a greenhouse gas.
Deforestation

Deforestation

  • During photosynthesis, plants take in carbon dioxide from the atmosphere and use it to make food.
  • Deforestation means there are fewer trees removing carbon dioxide from the atmosphere.
  • Additionally, carbon dioxide is released when trees are burned and the carbon inside them is released into the atmosphere.
Jump to other topics
1

The Challenge of Natural Hazards

1.1

Natural Hazards

1.2

Tectonic Hazards

1.3

Weather Hazards

1.4

Climate Change

2

The Living World

2.1

Ecosystems

2.2

Tropical Rainforests

2.3

Hot Deserts

2.4

Tundra & Polar Environments

3

Physical Landscapes in the UK

3.1

The UK Physical Landscape

3.2

Coastal Landscapes in the UK

3.3

River Landscapes in the UK

3.4

Glacial Landscapes in the UK

4

Urban Issues & Challenges

5

The Changing Economic World

5.1

The Changing Economic World

5.2

Economic Development in the UK

6

The Challenge of Resource Management

6.1

Resource Management

6.2

Food

6.3

Water

6.4

Energy

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