Green House Effect & Climate Change

Question 1

The Greenhouse Effect what is?

Answer 1

is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a temperature above what it would be without its atmosphere.
a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

Question 2

What are the main greenhouse gases

Answer 2

H2O 36-70%
CO2 9-26%
CH4 4-9%
Ozone 3-7%

Question 3

What causes global warming?

Answer 3

The anthropogenic greenhouse effect

Question 4

CO2-Concentration in the Atmosphere (3 points)

Answer 4

1. Changes between 200 and 300 ppm have
   occurred during the history
2. Dependence between climate changes (e.g.
   ice ages) and CO2-concentration in the atmosphere exists
3. CO2-concentration in the atmosphere
   increased significantly during the last century

Question 5

Global Temperature Increase (3 points)

Answer 5

1. Steady increase during the last century is
   observed.
2. Average temperature rise is almost 1 K.
3. Discussions about allowable temperature rise
   without collateral damages are the basis for
   future policies.