Carbon Dioxide as a Green House gas

Question 1

CO2 is a greenhouse gas

Answer 1

So is methane and nitrous oxide

Question 2

Explain how it warms up the Earth -

Answer 2

Energy from the sun

Energy re-emitted as IR radiation

IR absorbed by molecules like CO2 - rest is lost in space

Energy transferred to other molecules warming up the whole atmosphere

c + o2 = co2