energy sources

Events

Fire was first discovered by man

122000 bc

humans first started using coal

2000 bc

Negative effects of coal and coal mining include:
Destruction of landscapes and habitats, deforestation and erosion, ground water contamination, chemical air and dust pollution, diseases from inhaling coal and greenhouse gas emissions

humans started using windmills to grind wheat

476 ad - 1350

hydroelectric power is used

1882

although hydropower is non polluting the hydropower facilities have negaive impacts on the surrounding environment such as:
preventing fish migrations, changing the water temperature and water flow and a possibility of methane production in reservoirs.

petroleum is used for car fuel

1950

nuclear power is used

1951

Negative effects of nuclear energy include:
Radioactive material can be released in an accident and radioactive wasted is produced

wind electricity is used

1980

solar power is used

1981