Lesson Atmosphere and Greenhouse

Atmosphere

Greenhouse Gases and the Greenhouse Effect

Poll

Are Greenhouse Gases bad?

• YES

• NO

If it were not for greenhouse gases trapping heat in the atmosphere, the Earth would be a very cold place.

• The Earth gets energy from the sun.

  Earth absorbs some of this energy and heats up.

• The Earth cools down by giving off infrared radiation.

• Greenhouse gases absorb some of the radiation before it can escape and this warms up the atmosphere.

Some greenhouse gasses are natural, while others are man-made. 

• Water Vapor (H2O)

  Carbon Dioxide (CO2)

  Methane (NH4)

  Nitrous Oxide (N2O)

  Ozone (O3)

  Chloroflourocarbons (CFCs)