Physical Geography 101
Greenhouse Effect

In order to understand the Greenhouse Effect one must first understand what a greenhouse is and how it works.


Greenhouses keep the temperature inside warmer than outside.
Glass panes allow shortwave radiation to pass. Absorbed by air, ground and plants.
Absorbed energy re-emitted as longwave counterradiation.
Longwave radiation is trapped.
– Glass panes allow shortwave radiation to pass.
Longwave radiation is re-absorbed by air, ground and plants

Greenhouse model

The Greenhouse Effect

System in which shortwave radiation is allowed to enter freely and is absorbed, then is re-radiated as longwave radiation. The longwave radiation is then retained within the system.

Greenhouse gases:

Water Vapor (H2O)

Carbon Dioxide (CO2)

Methane (CH4)

Chlorofluorocarbons (CFCs)

Ozone (O3)

Greenhouse Particles

Does the greenhouse effect in the greenhouse continue to work if the panes of glass are removed?

Greenhouse Effect Consequences

Is the Greenhouse Effect a bad thing?

How can the Greenhouse Effect be harmful?