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Global Warming
Monday, 28 September 2009
Seriously, no offence, I really like the chapter on Global Warming and Ozone Depletion. It is damn cool can? I mean the chapter and seriously not the teacher though! Global Warming
Definition: The amount of greenhouse gases in the atmosphere had increased dramatically over the two centuries which causes Global Warming!
Greenhouses gases
Defintion: Gases in the atmosphere that absorb heat from the sun's rays.
Some sources are Methane, Nitric Oxide, Carbon Dioxide and Cfcs.
Anyway there isn't any cfcs products now.... (Good)
Due to the increasing uses of these gases causes Enhanced Greenhouse Effect and more sunlight is being reflected back to Earth which lead to an increase in global temperature.
It is especially worst in the North and South Pole , because most of ice can reflect the sun's rays back to space but due to Global Warming, the ice are melting at a very high rate.....
Due to this, the sun's rays are being absorbed by the dark sea and oceans.
Impact of Global Warming
Changes in Weather Conditions
Due to Global warming, there are more prolonged droughts in the dry regions.
More Heat Waves happening throughout the world.
Frequent flooding in wet regions.
Impact on Plants
Due to the different rainfall and temperatures that changes, vegetation growth around the world had been affected.
Impact on Animals
Due to fast melting ice bergs in both the poles, it had threaten the animals survival such as penguins and bears. Not only do they had to migrate they will probably faces extinction!
Impact on People
Due to the increasing temperature throughout the world, there are more dengue fever as these mosquitoes thrive very well in warm temperature. Yellow Fever and Malaria too.
(Especially Singapore but now the season for it is over...><)
Increasing Sea levels
The sea expands and the water eveporate more faster. Low-Lying areas would be affected because thay are only situated at a few metres higher than the sea level. The infrasture would be affected too. Agricultural lands and deltas may also face frequent flooding.
Measures To be Taken....
International Effort
Kyoto Protocol is a measure that aims to reduce the emissions of greenhouse gases to 5.2% below 1990s by 2012. Not all countires had signed though xD
National Efforts (Singapore)
Encforcing Laws and Regulations
Using alternative sources of energy (Hybid Cars)
( I think they look rather cute and I would buy it in the future)
Individual Efforts
Taking public Transport more often
Car pooling
Using energy efficient appliances