Greenhouse Effects

Greenhouse Effects

The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.

Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs).

The absorbed energy warms the atmosphere and the surface of the Earth. This process maintains the Earth’s temperature at around 33 degrees Celsius warmer than it would otherwise be, allowing life on Earth to exist.

Digital Learning Object (DLO)

1. Thermal : Relating to heat

2. Troposphere : The lowest region in the atmosphere

3. Stratosphere : The layer of the earth’s atmosphere above the troposphere
4. 
5. Ozone : Fresh invigorating air, especially blown onto the shore from the sea

6. Ionosphere: The layer of the earth's atmosphere which contains a high

7. concentration of ions and free electrons and is able to reflect radio waves

8. Climate Change:  a change in global or regional climate patterns, in particular a

9. change apparent from the mid to late 20th century onwards and attributed

10. largely to the increased levels of atmospheric carbon dioxide produced by the use of fossil fuels.

11. Weather: The state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain,

12. Reflects: of a surface or body  throwback heat, light, or sound without absorbing it.

13. Absorb : Take in or soap up, by chemicals or physical action

14. Reliable Sources:  Trusty, authentic, consistent. Reliable, infallible, trustworthy apply to persons, objects, ideas, or information that can be depended upon with confident certainty.

15. Sample Size : The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample.

16. Peer-review : Evaluation of scientific, academic, or professional work by others working in the same field.

Greenhouse Effects: The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.