Global warming is the slight warming (0.7*C) that has occured over the last 100 years or so. This warming has followed several centuries of cooling known as the "little ice age."
The little ice age was caused by a reduction in the sun's output known as the maunder minimum. As the sun's output has increased again, the earth's temperature has gone up accordingly. Studies by NASA, and others published by the American Geophysical Union show that the increase in the sun's output account directly for 80% of the warming over the last century. The increase in solar irradiance probably accounts indirectly for most of the remaining warming, as the natural warming would produce more atmospheric CO2 and water vapor.
2007-08-28 02:08:37
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answer #1
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answered by dsl67 4
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If the earth was not surrounded by the warming blanket aware, it would be much cold for human habitation, earth's atmosphere act's as it's blanket, because it contains small amount of Carbon dioxide, Methane, Nitrous oxide and other gases in the atmosphere, known as Green House Gases. These gases help pertain heat through a widle process called Green House Effect.
The Green House Effect occurs when the sunlight passes through the atmosphere and strikes the earth some other light is reflected and some is absorbed. The absorbed light warms the surface of the earth. The heated surface then radiates infra red light into the atmosphere, where it is absorbed by Green House Gases. These gases help regulate the temperature of the earth.
Reason: Due to burning of large amount of coal, oil and Natural Gas, the amount of green house gases in the atmosphere has tremendously increased over last 300 years. For instance, Carbon dioxide abbreviated as CO2 has increased 30% since 1750. Trees remove CO2 from air as part of their natural process as human beings cut down forests, the capacity of trees to removeCo2 from the air is diminished. Scientists are concerned that as we continue to burn large amount of fossil fuels and replead our forest and exagrate green house effect will occur. Resulting an increasing heat of the world known as Global Warming
2007-08-25 04:16:33
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answer #2
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answered by Anonymous
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biodiversity, nature at risk plus health impacts
On a cold and bitter winter night, in a field of boulders beneath a thick layer of snow, a mountain pygmy possum sleeps safe and snug. Strange though it may seem, it is the snow that's keeping the possum warm; fluffed up by countless pockets of air, the uncompacted snow insulates the ground and prevents the warmth from escaping into the night. Under this white blanket, the mountain pygmy possum can hibernate the winter away.
The pygmy possum might be snug, but those of us concerned for its future can't afford to be complacent. Perversely for an animal that inhabits one of the coldest environments on the Australian continent, one of the biggest threats to its survival – and that of many other Australian plants and animals – is global warming.
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Throughout the world, the prevalence of particular diseases and other threats to human health depend largely on local climate. Extreme temperatures can directly cause the loss of life. Moreover, several serious diseases only appear in warm areas. Finally, warm temperatures can increase air and water pollution, which in turn harm human health.
The most direct effect of climate change would be the impacts of hotter temperatures themselves. Extremely hot temperatures increase the number of people who die on a given day for many reasons: People with heart problems are vulnerable because one’s cardiovascular system must work harder to keep the body cool during hot weather. Heat exhaustion and some respiratory problems increase.
2007-08-24 02:35:06
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answer #3
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answered by Indiana Frenchman 7
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worldwide warming is a organic component of Earth, led to by using some photograph voltaic activities by using solar. We human do no longer could desire to bother approximately it. the extremely some environmentalist says that that is by way of CO2 we are emitting into the atmosphere, however the actuality is that we are only contributing in the direction of a million% to 10% of actually worldwide warming. If the extremely reason in the back of worldwide Warming is CO2 emitted by using the people then why worldwide Warming occures on different planets. in basic terms Google for "worldwide Warming on different planets" and notice the outcomes, there are actually not any people on different planets. Having too little CO2 interior the atmosphere will reason for the vegetation to die greater early, greater over it additionally cools down the temperature on earth. Having too a lot CO2 (obiviously, no longer led to by using people. regularly generated interior the sea/Oceans) will carry approximately green abode effect and could lead in increasing the temperature on earth. So, the suited is to plant greater wood so as that there could be a stability for the intake of CO2 on earth. i in my opinion think of that as a exchange of thinking in this baseless concern attempt to think of on what if Nuclear conflict broke out interior the worldwide, that is going to wreck Earth greater quickly. So, next time on each and every occasion somebody says you approximately worldwide warming, in basic terms forget approximately it.
2016-10-16 21:09:48
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answer #4
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answered by blide 4
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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
2007-08-24 02:30:42
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answer #5
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answered by Bob 7
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global warming is a con-job put up by "experts" to gain personal wealth through grant money, as well as set national and international policies as they see fit.
global warming was first revealed in the 90's.
the discovery of GW was found accidently.
in the 1980's, "experts" discovered that their was a severe grant money "drought".
this "drought" was caused by people figuring out they were wrong about global cooling, which they predicted all through the 70's, but never really fooled anyone.
sure, global cooling and global warming have a lot in common:
weather pattern changes, famine, excessive use of fossil fuels, man caused, people dying, and areas of the planet no longer being inhabitable, must act now before it's too late, future generations depend on us, to name a few.
this is mearly a coincedence.
the important thing is, it is occuring and they need YOUR money and freedom to stop it.
please donate generously.
2007-08-24 03:15:30
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answer #6
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answered by afratta437 5
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there is no conclusive answer to global warming which by the way has been going on for century's....don't forget the ice-age is long gone. The best way to help the problem is for "everyone" to use common sense and try to conserve energy. Unfortunately we as Americans because of our life style, waste energy by leaving the lights on when not necessary, using blow dryers, leaving the computer on all the time, using unnecessary fuel..via jet skies, boats, driving gas hog SUV'S and trucks etc. Al Gore by the way is a hypocrite as he flies around the country in a private jet and his personal residence uses 8x's the normal carbon fuels annually so he does not practice what he is preaching!
2007-08-24 03:03:53
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answer #7
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answered by maur911 4
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Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.
Look at www.globalwarming.org for more details
Kris
http://www.indiaeveryday.com
2007-08-24 02:29:48
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answer #8
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answered by Siddu 1
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Global warming, or Climate Change as it's called today is great. It is what we blame floods and droughts on, warmth and cold temperatures, hurricanes and also the lack of hurricanes. in fact everything can be explained by climate change.
And man is the cause, as the climate was at a constant 60 degrees before man evolved. Everything bad and evil can be explained by saying man did it.
And politicians are the experts on how to cure climate change. Just hand your life over to them and if everyone has given everything, then climate change will be over!
Either that or the suns activity will change and the earth will start to get cooler.
2007-08-24 02:47:07
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answer #9
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answered by Dr Jello 7
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well jus go 2 wikipedia( put a google serch "global warming" n ull get the direct lin2 wikipedia) n ull get loads of stuff....hope it helps.
2007-08-25 06:47:38
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answer #10
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answered by magicalme 1
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