What is Global Warming?

Question

and how can we prevent it?

Answer 1

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.

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

The "swindle" movie is wrong. It is simply a political statement which distorts science. The director has a history of putting out misleading stuff. In 1997 he made a series for Channel 4 called “Against Nature”, which compared environmentalists with Nazis. Channel 4 had to apologise for the misleading stuff in that one. The present movie is also a distortion of the science. More here:

http://news.independent.co.uk/environment/climate_change/article2355956.ece

"A Channel 4 documentary claimed that climate change was a conspiratorial lie. But an analysis of the evidence it used shows the film was riddled with distortions and errors."

http://www.medialens.org/alerts/07/0313pure_propaganda_the.php

"Pure Propaganda"

http://www.realclimate.org/index.php/archives/2007/03/swindled/

Explanations of why the science is wrong.

http://en.wikipedia.org/wiki/Martin_Durkin_(television_director)

History of the director.

http://environment.guardian.co.uk/climatechange/story/0,,2032572,00.html

"The science might be bunkum, the research discredited. But all that counts for Channel 4 is generating controversy."

Gore's movie may be a little over dramatic, but it has the basic science right. This movie does not.

Channel 4 itself undercuts the movie in a funny way. If you go to their website on the movie you find links to real global warming information. They also have a way to "Ask the Expert" about global warming. The questions go to a respected mainstream scientist who supports (mostly) human responsibility for global warming.

Answer 2

Potential increase in global average surface temperatures resulting from enhancement of the greenhouse effect by air pollution.

In 2001 the U.N. Intergovernmental Panel on Climate Change estimated that by 2100 global average surface temperatures would increase by 2.5 to 10.4 °F (1.4 to 5.8 °C), depending on a range of scenarios for greenhouse gas emissions. Many scientists predict that such an increase would cause polar ice caps and mountain glaciers to melt rapidly, significantly raising the levels of coastal waters, and would produce new patterns and extremes of drought and rainfall, seriously disrupting food production in certain regions. Other scientists maintain that such predictions are overstated. The 1992 Earth Summit and the 1997 conference of the UN Framework Convention on Climate Change attempted to address the issue of global warming, but in both cases the cause was hindered by conflicting national economic agendas and disputes between rich and poor nations over the cost and consequences of reducing emissions of greenhouse gases.
Global warming is caused by the excessive carbon dioxide so only way to prevent it is to avoid carbon dioxide . what can we do for that ???????
Think
1.plant trees. it will take carbon dioxide and release oxygen. That will be very useful for future also
2.make a strict law in cutting trees
3. avoid vehicles which produce smokes. Ask the scientist to make a new invention in which no smoke is produced. I think why can’t we make a new vehicle which will run by electricity thus we can gain many things but lose one thing water
Gains are we can save petroleum it is very poor in earth.yes we can save earth from global warming.


Earth is now a ball in an utensil a silly ice ball. Its heating Ice ball will melt soon.so we can combine together. Come on all guys come on. And we can make the ice ball a diamond which cannot melt



for more search google and wikipedia

Answer 3

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.
Scientists have concluded that human activity, primarily the burning of fossil fuels, is the major driving factor in global warming.
Global warming can be slowed, and stopped, with practical actions that yield a cleaner, healthier atmosphere.
The goal is to bring global warming under control by curtailing the release of carbon dioxide.
The largest source of greenhouse gases is electric power generation. Much of the energy we use in our homes comes from power plants which burn fossil fuel to power our electric products.
The other largest source of greenhouse gases is transportation. Motor vehicles are responsible for about a third of all carbon dioxide emissions . This can be controlled by Improving the vehicle fuel-efficiency

Answer 4

Global warming is caused by the sun. Humans can do absolutely nothing to stop it. If you can stop an asteroid from hitting earth you can stop Global warming. For evidence pls watch the following documentary: http://video.google.com/videoplay?docid=4499562022478442170&q=Global+Warming&hl=en

Answer 5

Please dont waste ur time...As I have wasted 15 years in environment...not a single country serious about..no one can stop it....specially USA is the biggest culprit producing pollution and shifting all industrial zone to China...
go and find something else..u will be rewarded..!