6.5 artificial climate change

climate change

changes in long-term weather patterns in certain regions.

global warming

an increase in Earth’s average global temperature,

greenhouse gases

65% water vapour, 25% carbon dioxide, 10% methan, nitrous oxide, CFCs, and tropospheric ozone

1

carbon dioxide GWP

25

methane GWP

298

nitrous oxide GWP

4750

CFCs GWP

sources of carbon dioxide

combustion of fossil fuels, deforestation

sources of methane

combustion of fossil fuels, livestock agriculture, waste dumps, rice paddies, bacteria

sources of nitrous oxide

production of chemical fertilizers, burning waste, industrial processes, bacteria, animal waste

sources of CFCs

liquid coolants, refrigeration, air conditioning

sources of ozone

air purifiers, photocopiers, solar radiation reacting with pollution

6500

perfluromethane GWP

sources of PFM

factories, smelting factory, industries, electronics

IPCC

small group, highlights the causes of climate change and provide solutions