I just need to noe and make sure cause i have this project
2007-11-08 13:21:07 · 4 answers · asked by mt_dew_14 2 in Environment ➔ Global Warming
and i need a percice answer how & where plz
2007-11-08 13:23:47 · update #1
Global warming (warming of the globe) is a complicated process that includes greenhouse gases holding in some heat. All gases will retain some heat. Certain gases such as water vapor and CO2 are more important than others and are called greenhouse gases, even though they don't work in the same way that a greenhouse holds in heat.
2007-11-08 13:55:55 · answer #1 · answered by JimZ 7 · 0⤊ 0⤋
Some gases ("greenhouse gases") let sunlight in, which warms the Earth, and then block that heat from leaving. That's the "greenhouse effect", and it's a natural thing, mostly caused by water vapor.
Man is making excessive amounts of greenhouse gases, mostly by burning fossil fuels. That causes the delicate natural balance to go out of whack and the Earth warms. That's global warming.
It won't be a Hollywood style disaster. Gradually coastal areas will flood and agriculture will be damaged. But it will be very bad. Rich countries will cope, but it will take huge amounts of money. In poor countries many people will die of starvation, but not all of them.
Most scientists say, in 20-50 years. But we need to start right now to fix it, fixing it will take even longer than that.
Really good website for more information here:
http://profend.com/global-warming/
Lots of numerical scientific data proving it real here:
http://en.wikipedia.org/wiki/Image:Climate_Change_Attribution.png
http://www.ipcc.ch/SPM2feb07.pdf
Proof that most scientists think it's real and mostly caused by us here:
http://en.wikipedia.org/wiki/Scientific_opinion_on_climate_change
http://www.sciencemag.org/cgi/content/full/306/5702/1686
2007-11-08 13:31:06 · answer #2 · answered by Bob 7 · 2⤊ 2⤋
The green house effect is essential for life as we know it to exist on this planet. Without the green house effect, it would be very very cold. Yes, the green house effect makes the Earth warmer.
2007-11-09 04:38:42 · answer #3 · answered by Anonymous · 0⤊ 0⤋
No - Variations in the Sun's output causes the Earth's climate to change.
The Sun is warming, so is the Earth, Mars, and Pluto.
2007-11-08 14:21:39 · answer #4 · answered by Dr Jello 7 · 1⤊ 0⤋