4.14) Enhances greenhouse effect

4.14) understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences

Pollution ---> CO2, CH4, water vapour (greenhouse gases)

increase their concentration in the upper atmosphere

infrared light from the planet surface will be increasingly reemitted backward into the earth surface, which raise the average global temperature = global warming

Consequences:

- melting of ice cap in polar region

- raised sea levels

- change in ocean current

- change in wind current

CLIMATE CHANGE

changes in distribution to the world's biomes and affect the ecosystems