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No. The major cause of global warming is the increasing heat of the sun - that is why other planets in the solar system are warming also. However this is acerbated by man made increases in "greenhouse" gases like carbon dioxide and methane. The major cause of carbon dioxide pollution at present is change in agricultural use of land - your point about deforestation. Major causes of the more potent methane pollution include ruminating herbivorous animals - cattle, sheep, camels, etc. and the paddy field system of rice growing used in much of Asia. Note that a couple of really big volcanoes would spew more carbon dioxide that most human activity, and that if rising sea temperatures cause frozen methane deposits in deep oceans to thaw then we really will have a catastrophe.
All in all global warming and climate change are far more complex subjects than most people realize, and scientists are still struggling to understand the causes and consequences. However it has already given many governments the welcome opportunity to ratchet up taxes and impose restrictive laws. Many academics are also finding global warming a good way to attract bursaries and research grants.
If governments were really serious about climate change they would be looking at improved flood defenses and desalination projects, and bringing pressure to bear on countries guilty of large scale deforestation, like Brazil and Indonesia.

2007-07-01 23:58:21 · answer #1 · answered by Tony B 6 · 1 4

I'm not going to get into an argument over whether global warming is caused by man or nature (it's caused by both). But, if your question assumes that deforestation is reducing the earth's ability to convert carbon dioxide to oxygen, keep in mind that trees are not as big a source of oxygen as oceanic algae. I'm much more concerned about polluting the oceans as I am about deforestation.

2007-07-02 13:24:19 · answer #2 · answered by jdkilp 7 · 3 0

YES!!! You are definitely right. Deforestation involves the cutting down of trees and this reduces the volume of storehouse for carbon. Non- ecofriendly products such as chlorofluorocarbon that may be found in fire extinguishers and in the production of foam packaging that is release into the environment will no doubt damage the ozone layer of the atmosphere. This will definitly cause a rise in the world's temperature causing global warming.

2007-07-02 02:39:43 · answer #3 · answered by Anonymous · 0 2

no - deforestation in South American and South Africa is still very bad and is taking away a good buffer zone - if all those rainforests are gone - we will soon live excluively indoors or off planet. In the more temperate zones; original forests are indeed, mostly gone; but secondary growth has cropped up.

Mainly it is building and vehicle emissions that are saturating our air faster than any trees can use them ......This is why it is so important to cultivate solar, wind, water, thermal power and to do it now. Big oil companies who are giving their CEO's millions each year as bonus pay; they are the only ones claiming we need to do nothing. It is unheard of to have as many scientiets AGREE on one topic as are agreed on global warming & mind-boggling that people still think it is a fake.

Fakes are out there for other to gain $$ or fame .... no one is gaining any $$ except the ones keeping us dependent on oil!!!

2007-07-02 05:12:50 · answer #4 · answered by Metella 3 · 1 1

[1]yes, and its has been proved that deforestation and our non-ecofriendly activities are effecting our global warming like On Earth, the major natural greenhouse gases are water vapor, which causes about 36–70% of the greenhouse effect (not including clouds); carbon dioxide (CO2), which causes 9–26%; methane (CH4), which causes 4–9%; and ozone, which causes 3–7%.

[2] Some other naturally occurring gases contribute very small fractions of the greenhouse effect; one of these, nitrous oxide (N2O), is increasing in concentration owing to human activity such as agriculture. The atmospheric concentrations of CO2 and CH4 have increased by 31% and 149% respectively above pre-industrial levels since 1750. These levels are considerably higher than at any time during the last 650,000 years, the period for which reliable data has been extracted from ice cores. From less direct geological evidence it is believed that CO2 values this high were last attained 20 million years ago.

[3] "About three-quarters of the anthropogenic [man-made] emissions of CO2 to the atmosphere during the past 20 years are due to fossil fuel burning. The rest of the anthropogenic emissions are predominantly due to land-use change, especially deforestation."

[4]The present atmospheric concentration of CO2 is about 383 parts per million (ppm) by volume.

[5] Future CO2 levels are expected to rise due to ongoing burning of fossil fuels and land-use change. The rate of rise will depend on uncertain economic, sociological, technological, natural developments, but may be ultimately limited by the availability of fossil fuels. The IPCC Special Report on Emissions Scenarios gives a wide range of future CO2 scenarios, ranging from 541 to 970 ppm by the year 2100.

[6] Fossil fuel reserves are sufficient to reach this level and continue emissions past 2100, if coal, tar sands or methane clathrates are extensively used.

[7]Positive feedback effects such as the expected release of CH4 from the melting of permafrost peat bogs in Siberia (possibly up to 70,000 million tonnes) may lead to significant additional sources of greenhouse gas emissions not included in climate by the IPCC

2007-07-05 09:30:45 · answer #5 · answered by mr.Dude 1 · 0 1

I lived in the Ecuador jungle and the rain forest is doing fine. There some small farms but they are a lot of work and the rain fall is high enough that the Forrest will take it back.

2007-07-02 05:30:10 · answer #6 · answered by JOHNNIE B 7 · 1 0

They are not THE major cause of global warming, but they are A major cause. As you can see from the chart below, deforestation accounts for 18.3% of worldwide greenhouse gas (GHG) emissions.

http://cait.wri.org/figures.php?page=World-FlowChart&view=100

While it is by far the biggest single contributor, it still does not account for one-fifth of our total greenhouse gas emissions. Remember also that these are worldwide emissions, and emissions by the USA (which account for nearly one quarter of the world's total emissions) are from sources other than deforestation:

http://cait.wri.org/figures.php?page=US-FlowChart&view=100

2007-07-02 05:20:11 · answer #7 · answered by Dana1981 7 · 0 1

Go to the jungles of Oaxaca,the ex forrests of Africa ,see the desertification in Mexico,the dust storms in northern China .

compare todays situation with what the place used to look like .
And understand how People have totaly changed their Environment and subsequently their climate.
Add all of this together,from all over the globe, and calculate the results .

MAN MADE CLIMATIC CHANGES

We cannot save the world from global warming ,but we still need our Environment to survive whilst we are still here .

Everybody is so desperate to absolve humanity from blame ,and this is not possible

Global warming is one thing ,and for many people it seems to be the knight on a white horse that says
dont worry it is not your fault you can do nothing about it ,
keep on trucking ,poluting, deforesting, desertifying,keep killing the animals ,keep burning the woods

Man is responsible for much climate change it cannot be whitewashed by Global warming

If Global warming now also want to change the climate it has to stand in line
because it is not the only one

ONCE UPON A TIME
I went to the jungles of Oaxaca and discussed with the Natives the mountain before us ,Mostly deforrested ,scarred by landslides and dotted with madly steep corn patches (which only produced for 3 years ),and devoid of clouds.

They all agreed that the days were hotter ,there was less rain ,And the river was dry part of the year.

When they were boys ,the river was bigger and ran all year around,the mountain was always covered in clouds with daily rains .And the days were more bearable .

Their actions in the desperate plight to feed their enormous families of avarage 12 kids per family ,often much more ,had destroyed their home ground with indisputable climate changes.
They had changed their climate.This happens all over Mexico

In Africa I have seen lush wooded lands change into dessert within a few years by large invading comunities ,who devoured the trees for building and firewood ending up in a dessert with out water
and with a hot sun under which no new plantation was possible.The people had changed their climate,this happens all over Africa.

In Northern china two mayor dessert are merging and 900 vilages are buried under the dust ,thousands of refugee farmers who had changed their climate ,by intensive agressive agriculture are fleeing for their lives,

This happens all over the world .it happened in the 20ties in the USA has everybody forgotton that ,was this not a climate change ?

Granted the climatic changes are local ,but effects neighboring areas ,there is less rainfall, rivers dry up ,

Collectively because there is so much of it all over the world ,the global precipitation is affected and so is the climate .

And who did it ???

the people are changing the climate

Like Ghengas Kahn changed the climate when he burned all the forests and filled the wells with sand ,Like the Phoenicians changed the climate of lebanon to build the trading fleet .Like the Spanish climate was changed by using their forest to build the Armada ,

So are we today changing the climate by massive deforestation,agressive corporate farming (using chemicals),overgrazing ,overpumping deep subteranean waters ,ignorence and impartiality

Global warming.carbon emisions ,polution ,sunspots ,solar flares,hairsprays , Al Gore, and skeptics are the rasberries on top

and read up what America is planning with the insane master plan for Ethanol production
http://answers.yahoo.com/question/index;_ylt=Ar9jPJIVV7MtwGwN7Zuqn1nsy6IX?qid=20070611164235AAp1H6V

Seems as if America is trying to compete with Global warming

I wonder who will win.?
but who ever it is ,
the rest of the world looses.

we are in trouble,and if we can do something that will make it less ,we should try to do it .

And there are many things that we can improve on
so that ,we can at least last as long as posible .

http://answers.yahoo.com/question/index;_ylt=As4hidobe1nWju6WnK285UTsy6IX?qid=20070629144913AAUGVpM

2007-07-02 19:18:16 · answer #8 · answered by Anonymous · 1 1

Many people are totally unaware of the extremely high level of CO2 emissions related to the inefficient architecture in this country. Most commercial buildings (High rises) are so inefficient in their lighting and cooling systems that more CO2 emissions are created by the production of energy to power these buildings. Google an article titled "It's the Architecture Stupid". Interesting stuff.

2007-07-02 05:02:41 · answer #9 · answered by Anonymous · 0 1

No it's people like Al Gore who want you to believe that there is global warming. I'm still getting ready for the ice age that they were promising in the 70s

2007-07-02 01:07:15 · answer #10 · answered by John 6 · 2 3

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