Thursday, September 17, 2009
& Global Warming - Darren (:
What is Global Warming?
Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the last century.[1][A] The Intergovernmental Panel on Climate Change (IPCC) concludes that increasing greenhouse gas concentrations resulting from human activity such as fossil fuel burning and deforestation caused most of the observed temperature increase since the middle of the 20th century.[1] The IPCC also concludes that variations in natural phenomena such as solar radiation and volcanoes produced most of the warming from pre-industrial times to 1950 and had a small cooling effect afterward.[2][3] These basic conclusions have been endorsed by more than 40 scientific societies and academies of science,[B] including all of the national academies of science of the major industrialized countries.[4] A small number of scientists dispute the consensus view.
URL : http://en.wikipedia.org/wiki/Global_warming
What are the 3 causes of it?
Almost 100% of the observed temperature increase over the last 50 years has been due to the increase in the atmosphere of greenhouse gas concentrations like water vapour, carbon dioxide (CO2), methane and ozone. Greenhouse gases are those gases that contribute to the greenhouse effect (see below). The largest contributing source of greenhouse gas is the burning of fossil fuels leading to the emission of carbon dioxide.
URL : http://timeforchange.org/cause-and-effect-for-global-warming
What are the 3 effects of it ?
When sunlight reaches Earth's surface some is absorbed and warms the earth and most of the rest is radiated back to the atmosphere at a longer wavelength than the sun light. Some of these longer wavelengths are absorbed by greenhouse gases in the atmosphere before they are lost to space. The absorption of this longwave radiant energy warms the atmosphere. These greenhouse gases act like a mirror and reflect back to the Earth some of the heat energy which would otherwise be lost to space. The reflecting back of heat energy by the atmosphere is called the "greenhouse effect".
The major natural greenhouse gases are water vapor, which causes about 36-70% of the greenhouse effect on Earth (not including clouds); carbon dioxide CO2, which causes 9-26%; methane, which causes 4-9%, and ozone, which causes 3-7%. It is not possible to state that a certain gas causes a certain percentage of the greenhouse effect, because the influences of the various gases are not additive. Other greenhouse gases include, but are not limited to, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, perfluorocarbons and chlorofluorocarbons.
URL : http://timeforchange.org/cause-and-effect-for-global-warming
Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-20th century and its projected continuation. Global surface temperature increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the last century.[1][A] The Intergovernmental Panel on Climate Change (IPCC) concludes that increasing greenhouse gas concentrations resulting from human activity such as fossil fuel burning and deforestation caused most of the observed temperature increase since the middle of the 20th century.[1] The IPCC also concludes that variations in natural phenomena such as solar radiation and volcanoes produced most of the warming from pre-industrial times to 1950 and had a small cooling effect afterward.[2][3] These basic conclusions have been endorsed by more than 40 scientific societies and academies of science,[B] including all of the national academies of science of the major industrialized countries.[4] A small number of scientists dispute the consensus view.
URL : http://en.wikipedia.org/wiki/Global_warming
What are the 3 causes of it?
Almost 100% of the observed temperature increase over the last 50 years has been due to the increase in the atmosphere of greenhouse gas concentrations like water vapour, carbon dioxide (CO2), methane and ozone. Greenhouse gases are those gases that contribute to the greenhouse effect (see below). The largest contributing source of greenhouse gas is the burning of fossil fuels leading to the emission of carbon dioxide.
URL : http://timeforchange.org/cause-and-effect-for-global-warming
What are the 3 effects of it ?
When sunlight reaches Earth's surface some is absorbed and warms the earth and most of the rest is radiated back to the atmosphere at a longer wavelength than the sun light. Some of these longer wavelengths are absorbed by greenhouse gases in the atmosphere before they are lost to space. The absorption of this longwave radiant energy warms the atmosphere. These greenhouse gases act like a mirror and reflect back to the Earth some of the heat energy which would otherwise be lost to space. The reflecting back of heat energy by the atmosphere is called the "greenhouse effect".
The major natural greenhouse gases are water vapor, which causes about 36-70% of the greenhouse effect on Earth (not including clouds); carbon dioxide CO2, which causes 9-26%; methane, which causes 4-9%, and ozone, which causes 3-7%. It is not possible to state that a certain gas causes a certain percentage of the greenhouse effect, because the influences of the various gases are not additive. Other greenhouse gases include, but are not limited to, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, perfluorocarbons and chlorofluorocarbons.
URL : http://timeforchange.org/cause-and-effect-for-global-warming
Your Attention Is All Tht I Require ,
@ 11:15 AM
HELLO THERE ,
We 2N2'ers, are super FRIENDLY & HYPER! :DDD
Express, Normal & Normal Tech. We're just in different streams studying at our comfortable pace. So, don't look down on us. :)
2N2'09-ers ,
Form Teacher : Mdm Salimah
Co Form : Miss Wang Xiao Jun
English : Miss Norazleen
Maths : Mr Goh Yong Yeu / Mr Oh
Science : Ms Judith
Physical Education : Mr Joe Tan
Literature: Miss Lim Bin
Music : Next Semester.
Geography : Next Semester.
History : Mdm Salimah
F & N : Mdm Paramjit
D & T : Mr Eric Micahel Basuki
Chinese : Ms Wang Xiao Jun
Malay : Ms Farrah
--------------------------------------
01.✩CANDY✩
02.✩CHARRISSA✩
03.✩FILIAH✩
04.✩FIONA✩
05.✩JESSIKA✩
06.✩KAR YEE✩
07.✩KHAMISAH✩
08.✩MICHELLE✩
09.✩SHERYL✩
10.✩MINGZHU✩
11.✩SURIATI✩
12.✩QUSYAIRAH✩
13.✩SALEHA✩
14.✩SYAQINAH✩
15.✩JIA HUI✩
16.✩AMANDA✩
17.✩REGINE✩
18.✩ZHI YAN✩
19.✩YASMIN✩
20.✩LI HAO✩
21.✩IVAN✩
22.✩DARREN✩
23.✩ISAAC✩
24.✩WINSTON✩
25.✩EDSEL✩
26.✩GABRIEL✩
27.✩LEON✩
28.✩EDWIN✩
29.✩JUNHAO✩
30.✩RAMADHAN✩
31.✩RIFQI✩
32.✩ROSHAHFIZAN✩
33.✩NASRUN✩
34.✩JUNJIE✩
35.✩RYAN✩
36.✩STANLEY✩
37.✩WENHAO✩
38.✩LAIHUAT✩
39.✩YONGHUAY✩
40.✩LIANGJIN✩
41.✩THIRU✩
42.✩JINGYE✩
43.✩SYAHMI✩
Co Form : Miss Wang Xiao Jun
English : Miss Norazleen
Maths : Mr Goh Yong Yeu / Mr Oh
Science : Ms Judith
Physical Education : Mr Joe Tan
Literature: Miss Lim Bin
Music : Next Semester.
Geography : Next Semester.
History : Mdm Salimah
F & N : Mdm Paramjit
D & T : Mr Eric Micahel Basuki
Chinese : Ms Wang Xiao Jun
Malay : Ms Farrah
--------------------------------------
01.✩CANDY✩
02.✩CHARRISSA✩
03.✩FILIAH✩
04.✩FIONA✩
05.✩JESSIKA✩
06.✩KAR YEE✩
07.✩KHAMISAH✩
08.✩MICHELLE✩
09.✩SHERYL✩
10.✩MINGZHU✩
11.✩SURIATI✩
12.✩QUSYAIRAH✩
13.✩SALEHA✩
14.✩SYAQINAH✩
15.✩JIA HUI✩
16.✩AMANDA✩
17.✩REGINE✩
18.✩ZHI YAN✩
19.✩YASMIN✩
20.✩LI HAO✩
21.✩IVAN✩
22.✩DARREN✩
23.✩ISAAC✩
24.✩WINSTON✩
25.✩EDSEL✩
26.✩GABRIEL✩
27.✩LEON✩
28.✩EDWIN✩
29.✩JUNHAO✩
30.✩RAMADHAN✩
31.✩RIFQI✩
32.✩ROSHAHFIZAN✩
33.✩NASRUN✩
34.✩JUNJIE✩
35.✩RYAN✩
36.✩STANLEY✩
37.✩WENHAO✩
38.✩LAIHUAT✩
39.✩YONGHUAY✩
40.✩LIANGJIN✩
41.✩THIRU✩
42.✩JINGYE✩
43.✩SYAHMI✩
