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The Earth's Atmosphere (Atmosphere Pollutants (Qhen hydrocarbon fuels…
The Earth's Atmosphere
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Greenhouse Gas
The amount of carbon diocide in the Earth's atmosphere has risen in the recent past, largely due to the amount of fossil fuels now burnt
It is difficult ot predict with complete certainty the effects on climate of rising levels of greenhouse gases on a global scale
However the vast majority of peer-reviewed evidence agreres that increased proportions of greehouse gases from human activitieswill increase avery global temperatures
Global Climate Change
Reducing greenhouse gases in the atmosphere relies on reducing the use of fossil fuels mainly by sing the alternative sources of energy and sonserving energy
The economies of developed countries are based on energy obtained from fossil fuels so changes will cost money to implement
However, changes are needed because of the potential risks arising from climate changes, such as rising sea levels, threats to ecosystems,and different parrerns of food production around the world.
Atmosphere Pollutants
Qhen hydrocarbon fuels are burnt in plenty of air the carbon and hydrgoen inthe fuel are completely oxidised. They produce carbon dioxide
Sulfure impurites in fuels burn to form sulfur dioxide whci hcan cause acid rain. Ulfure can be removed from fuels before they are burnt of sulfur dioxide can ber revomed from flue gas
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In insufficient oxygen poisenous carbon monoxide gas is formed. Particulates of carbon and unburnt hydrocarbons can also be produced , especially if the fuel is diesel. They cancause global dimming
At the high temperatures of engines nigtorgen from the air reacts 2witth oxygne to from oxides of nitrogen. These cause breathing problems and can also cause acid rain.