climate change

the green house effect

greenhouse gasses in the atmosphere allow short wave radiation from the sun through the earths surface

the greenhouse gases absorb some of the long wave radiation and stop it from radiating out into space

maintaining earths average temperature

water vapour from

evaporation from the oceans and plants

carbon dioxide from

volcanic eruptions, respirations

methane from

emitted from oceans and soils as part of decomposition

causes of climate change

volcanic eruptions

sunspot activity - increased

atmospheric dust from asteroids in the atsmosphere

human activity co2

burning fossil fuels

burning woods

deforestation

human activity methane

decay of organic matter

released by cattle

human activity n20

artifical fertilisers

burning fossil fuels

social effectd

heat waves more frequent, lack of precipitation spreads diseases

loss of jobs as of changes in agriculture

increased flooding

economic effects

coastal flooding can lead to salt intrusion, food shortages

tourism may decline

environmental effects

sea levels rise

melting ice

coastal ecosystems

paris agreement 2015

global agreement to limit global warming to 2 degrees above pre industrial levels

to also reduce co2 emissions by 60% by 2050

signed by 196 countries

afforestation

planting trees inrease the removal of co2 from atmosphere

oxygen increased

increased transpiration increases cloud formation reducing solar radiation