Causes of global warming??

Question

Can you give me a breif paragraph or two on what causes global warming and how we can stop those causes? Please? Thank you.

Answer 1

Global warming is caused by carbon dioxide that come out of cars, factories and many others. Air pollution is also the cause. As the ozone layer in the atmosphere is the only protection for us against UV rays and extreme heat. It is now being continuously damaged by the carbon and that causes holes which allows the UV rays and so on to enter the atmosphere. We can stop it by: Walk instead of drive, Use something like what singapore has in there factories and stop smoking.

Answer 2

i can give you ten pages if i had the time, its polution that causes it and we can help by swithching our car oil to vegi. oil and recycling. global warming is what makes the hole in the ozone bigger so that when we grow up we will live in a world like the one on that show "jericho" and no i am NOT kidding. hope i helped. =D

Answer 3

Global warming is caused by Americans and the environmental policies of the Bush administration. If Al Gore had been elected president then global warming frenzy, ethanol, and electric cars would not even exist.

Answer 4

Two reason's for global warming:

The biggest contributor is the fact that the earth is gradually getting closer to the sun.

The second factor would be, its something that is uncontrollable.  We are more conscientious now that ever before and yet global warming is still and issue...it inevitable. I can see that people may disagree with my statement but think about it for a moment.  Everything that we do to try and be more green essentially could cause global warming if you really want to get to the point. Electric cars uses electricity which uses fuel which contributes to global warming. Ethanol yes we can grow it , but then it has to be manufactured which factories contribute to global warming. Everyday human living is contributing to global warming.  We consume and the fact of the matter is as long as we consume the factors that we are lead to believe cause global warming will continue.  I love the earth I do, however, everyone has to ask themselves when you judge someone for not being so environmentally friendly, how "green" are you?  All the solar panels, energy efficient light bulbs, etc. are manufactured.  Hydrogen is the answer to the factors  of global warming as we are led to believe but until business are ready to cut the losses on fuel and coal, this issue will not be resolved and yes it will continue.

Answer 5

Global warming has finally been explained: the Earth is getting hotter because the Sun is burning more brightly than at any time during the past 1,000 years, according to new research.

Dr Sami Solanki, the director of the renowned Max Planck Institute for Solar System Research in Gottingen, Germany, who led the research, said: "The Sun has been at its strongest over the past 60 years and may now be affecting global temperatures.

If you notice this is from the Max Planck Institute ....Not a paid lobbyist for the coal and oil companies that so many chicken Little's like to blame all the earths problems on.

There is so much new research out there now pointing to the sun as at least 50% responsible for the slight warming we have seen in the last 150 years.

Also Co2 rising has  always followed not preceded temps rising.

As for stopping it......Why would we want to?

As the Earth warms more area will become habitable and we will be able to produce more food.  The idea that there is some ideal temp that the Earth should be at is just plain silly thinking!

Answer 6

oh lets see....... about 9 billion people......./ several billion cars...... millions of cows...... millions of factorys..... thousands of ships......... cutting down all the trees and forests......polluting the oceans........ killing the whales.......and in general  destroying the enviroment.        these are just a few of the reasons.

Answer 7

causes of global warming

one cause of global warming is the releasing of co2 into the atmosphere. CO2 gets released from alot of things, it gets released into the atmosphere and when it rises in causes the ozone layer to get broken down. The ozone layer protects the earth from a large percentage of the sun rays from getting to earth, cooling the earth my many degrees. Another cause has to do with co2. The taking down of trees. Trees breathe in co2 which gets rid of it, they convert it to i think oxygen (not 100% sure but pretty sure) when chopping down trees by the number there is more co2 in  the atmosphere, which is resulting in ozone depletion.

Answer 8

check this thing in google.i think you may get it in brief

Answer 9

Global Warming is caused by the vain political ambitions of a frustrated ex Clinton administration official who in the words of P.J. O'Rourke "has the IQ of a King Charles Spaniel with repulsive totalitarian tendencies"  I would say ignoring him and his true believers would be a good start.

Answer 10

Global warming is a hoax. It is not true. Whatever mumbo jumbo people are filling your head with is totally stupid. Theres your answer. If this is for like a school assignment you should put that. Because that is the truth.

Answer 11

That's actually something very much undetermined.  

On the one hand, mankind has undisputedly done amazing things in terms of creating free greenhouse gases and depleting the ozone layer.

On the other hand, no proof of causation has yet been put forth that these elements are alone responsible for our beginning climate shift.  There's a fair bit of evidence that radical climate shifts have happened before, without the benefit of SUVs and air conditioning.

I like to think of it this way.  Imagine that a random forest represents the climate, and a forest fire represents a sudden, radical, cascading shift in the climate.  Forest fires are caused by purely natural events (lightning strikes, volcanic activity) far more often than by human influences.  So, in this hypothetical forest, we are indeed playing with matches, and may accelerate the process, but by putting our matches away we cannot prevent the cycle.

Answer 12

http://www.ehow.com/how_2044984_prevent-...

It tells you how to stop global warming and a short paragraph on how gw started. =]

Thank you for caring about the world!

Answer 13

Cows passing millions of cubic meters of methan gas, and volcanos erupting. No we can't do a thing about it.

Answer 14

Global warming is caused by the carbon dioxide released by automobiles and the greenhouse gases that many factories release while manufacturing. These gases destroy the ozone layer and cause changes in the weather during the seasons. Ways to stop global warming is by recycling, car pooling, and using more energy efficient products.

Answer 15

MAN-BEAR-PIG!!!

Answer 16

Global warming is a natural process that has been going on for millions of years, and we can't stop it.

If everyone in the world were to stop using fossil fuels, elecitricity, etc TODAY, we'd hold off another ice age for only another 5 years.

We have very little effect to the world's climate. Take into consideration how much carbon comes out of a volcano for example (thousands are active all over the world at the moment)

The link at the bottom shows global temperatures for the last 425,000 years, and as you can see we've had very little effect to it.

Answer 17

Global warming is the ozone layer pretty much deteriorating. You can't really stop it. I know that the cutting down of trees, fuels, and using products like hairspray can be part of this cause.

I don't know that much, but this is just an idea.

:)

Answer 18

That awesome power ballad you wrote, because you blew the world!

ya really weird but you have opened a door you don't want to open, I'm trying to change the subject.

Answer 19

the list is kinda long....

Methane (from rice paddies & bovine flatulence... cow farts)

CFCs from spray cans from the past (not used now)

exhaust from cars, planes, trains & boats

Carbon Dioxide from Power Plants

Deforestation

Answer 20

the green house effect causes it

it thins out the ozone layer which makes the UV(sun) rays more direct which will eventually melt the ice caps and flood the world and we all will die UNLESS we stop poluting, and putting greenhouse gases into the air

Answer 21

trees  cause global warming by giving off cloroflorocarbon or co2 into the air.  we can help by turning trees into environmentaly friendly homes. Increasing the size of cities while shrinking the main cause of global warming.

Answer 22

VR fan

I'm afraid mines a bit drawn out as well...

One problem with global warming is that the concept is so vague in the minds of the people. The critical interpretation is basically how it’s explained in the first answer. However most of the public see global warming connected with the ozone and pollutants which cause harmful greenhouse gasses, etc. therefore investigating and fighting for things like alternative energy (ie. Solar, wind, hydrogen, ethanol, biodiesel, etc)

Greenhouse gases are real and do contribute to global warming. Think of the different gas layers like ozone (o3) that circumference the globe as the clear plastic on a greenhouse. Longer rays of light from the Sun go in and reflect off different thermal masses bouncing back and creating shorter lengths of energy that cannot exist the plastic barrier. These beams then just continue to bounce around inside the green house until they’re finally absorbed completely (some do escape but very few), thereby warming the greenhouse greatly even in cold temperatures.

Basically there are 2 ways that this reaction (or lack of) affects the planet. Global warming and global cooling.

1. as we add to the gases in the stratosphere, where the ozone layer is (Carbon dioxide, carbon monoxide, etc), we add to the plastic of the greenhouse, trapping more short wave length energy and heating the earth more.

2. as we deplete the ozone (with chlorofluorocarbons or CFCs), we allow more long wave length energy, which bounces back out to space without heating any thermal masses on earth, thereby cooling the planet.

It’s pretty easy to see the results..

Melting ice sheets & glaciers

Floods & droughts

Great hurricanes & cyclones

Seasonal extremes

Seasonal phenomena’s

Species extinction

New & resurgent diseases

There are many ways to stop both global warming and cooling from accruing or at least slow them down until we can discover a way to reverse it, but Stop burning fossil fuels is the biggest.

I currently own 2 converted h2 vehicles which run on 100% hydrogen and 1 EV (electric vehicle), not to mention our home is completely off the grid, using alternative energy (solar, wind, etc)

If you interested in DIY alternative fuels / energy info, or step by step guides to walk you threw Green living do a google search for agua-luna alternative energy

Hope this helped, feel free to contact me personally if you have any questions,

Dan Martin

Retired Boeing Engineer now living 100% Off-the-Grid with my family, using Alternative Energy & loving every minute.

for more info visit agua-luna com

Answer 23

Vegeterians will tell you that cow flatulence is the main cause...which is why I eat the cows.  Therefore, I am doing my part to assist in global warming!

Answer 24

politicians with their God awful "not me, you done it!" c**p

solution...open mouth, insert foot.....

Answer 25

Global Warming is caused by many things. The causes are split up into two groups, man-made or anthropogenic causes, and natural causes.

Natural Causes:

Natural causes are causes created by nature. One natural cause is a release of methane gas from arctic tundra and wetlands. Methane is a greenhouse gas. A greenhouse gas is a gas that traps heat in the earth's atmosphere. Another natural cause is that the earth goes through a cycle of climate change. This climate change usually lasts about 40,000 years.

Man-made Causes:

Man-made causes probably do the most damage. There are many man-made causes. Pollution is one of the biggest man-made problems. Pollution comes in many shapes and sizes. Burning fossil fuels is one thing that causes pollution. Fossil fuels are fuels made of organic matter such as coal, or oil. When fossil fuels are burned they give off a green house gas called CO2. Also mining coal and oil allows methane to escape. How does it escape? Methane is naturally in the ground. When coal or oil is mined you have to dig up the earth a little. When you dig up the fossil fuels you dig up the methane as well.

Another major man-made cause of Global Warming is population. More people means more food, and more methods of transportation, right? That means more methane because there will be more burning of fossil fuels, and more agriculture. Now your probably thinking, "Wait a minute, you said agriculture is going to be damaged by Global Warming, but now you're saying agriculture is going to help cause Global Warming?" Well, have you ever been in a barn filled with animals and you smell something terrible? You're smelling methane. Another source of methane is manure. Because more food is needed we have to raise food. Animals like cows are a source of food which means more manure and methane. Another problem with the increasing population is transportation. More people means more cars, and more cars means more pollution. Also, many people have more than one car.

Overpopulation:

        Since CO2 contributes to global warming, the increase in population makes the problem worse because we breathe out CO2. Also, the trees that convert our CO2 to oxygen are being demolished because we're using the land that we cut the trees down from as property for our homes and buildings. We are not replacing the trees (an important part of our eco system), so we are constantly taking advantage of our natural resources and giving nothing back in return.

Answer 26

we breath out CO2, so stop breathing

Answer 27

The causes are:

The Earth's climate changes in response to external forcing, including variations in its orbit around the Sun (orbital forcing), volcanic eruptions, and atmospheric greenhouse gas concentrations. The detailed causes of the recent warming remain an active field of research, but the scientific consensus identifies elevated levels of greenhouse gases due to human activity as the main influence. This attribution is clearest for the most recent 50 years, for which the most detailed data are available. Some other hypotheses departing from the consensus view have been suggested to explain the observed increase in mean global temperature. One such hypothesis proposes that warming may be the result of variations in solar activity.

None of the effects of forcing are instantaneous. The thermal inertia of the Earth's oceans and slow responses of other indirect effects mean that the Earth's current climate is not in equilibrium with the forcing imposed. Climate commitment studies indicate that even if greenhouse gases were stabilized at 2000 levels, a further warming of about 0.5 °C (0.9 °F) would still occur.

Greenhouse gases in the atmosphere

The greenhouse effect was discovered by Joseph Fourier in 1824 and was first investigated quantitatively by Svante Arrhenius in 1896. It is the process by which absorption and emission of infrared radiation by atmospheric gases warm a planet's atmosphere and surface.

Existence of the greenhouse effect as such is not disputed. Naturally occurring greenhouse gases have a mean warming effect of about 33 °C (59 °F), without which Earth would be uninhabitable. Rather, the issue is how the strength of the greenhouse effect is changed when human activity increases the atmospheric concentrations of some greenhouse gases.

On Earth, the major 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%. Molecule for molecule, methane is a more effective greenhouse gas than carbon dioxide, but its concentration is much smaller so that its total radiative forcing is only about a fourth of that from carbon dioxide. 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 since the beginning of the industrial revolution in the mid-1700s. 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. Fossil fuel burning has produced about three-quarters of the increase in CO2 from human activity over the past 20 years. Most of the rest is due to land-use change, in particular deforestation.



Recent increases in atmospheric carbon dioxide (CO2). The monthly CO2 measurements display small seasonal oscillations in an overall yearly uptrend; each year's maximum is reached during the Northern Hemisphere's late spring, and declines during the Northern Hemisphere growing season as plants remove some CO2 from the atmosphere.The present atmospheric concentration of CO2 is about 383 parts per million (ppm) by volume. 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, and 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. Fossil fuel reserves are sufficient to reach this level and continue emissions past 2100, if coal, tar sands or methane clathrates are extensively used.

Feedbacks

The effects of forcing agents on the climate are complicated by various feedback processes.

One of the most pronounced feedback effects relates to the evaporation of water. In the case of warming by the addition of long-lived greenhouse gases such as CO2, the initial warming will cause more water to be evaporated into the atmosphere. Since water vapor itself acts as a greenhouse gas, this causes still more warming; the warming causes more water vapor to be evaporated, and so forth until a new dynamic equilibrium concentration of water vapor is reached with a much larger greenhouse effect than that due to CO2 alone. Although this feedback process involves an increase in the absolute moisture content of the air, the relative humidity stays nearly constant or even decreases slightly because the air is warmer. This feedback effect can only be reversed slowly as CO2 has a long average atmospheric lifetime.

Feedback effects due to clouds are an area of ongoing research. Seen from below, clouds emit infrared radiation back to the surface, and so exert a warming effect; seen from above, clouds reflect sunlight and emit infrared radiation to space, and so exert a cooling effect. Whether the net effect is warming or cooling depends on details such as the type and altitude of the cloud. These details are difficult to represent in climate models, in part because clouds are much smaller than the spacing between points on the computational grids of climate models. Nevertheless, cloud feedback is second only to water vapor feedback and is positive in all the models that were used in the IPCC Fourth Assessment Report.

A subtler feedback process relates to changes in the lapse rate as the atmosphere warms. The atmosphere's temperature decreases with height in the troposphere. Since emission of infrared radiation varies with the fourth power of temperature, longwave radiation emitted from the upper atmosphere is less than that emitted from the lower atmosphere. Most of the radiation emitted from the upper atmosphere escapes to space, while most of the radiation emitted from the lower atmosphere is re-absorbed by the surface or the atmosphere. Thus, the strength of the greenhouse effect depends on the atmosphere's rate of temperature decrease with height: if the rate of temperature decrease is greater the greenhouse effect will be stronger, and if the rate of temperature decrease is smaller then the greenhouse effect will be weaker. Both theory and climate models indicate that warming will reduce the decrease of temperature with height, producing a negative lapse rate feedback that weakens the greenhouse effect. Measurements of the rate of temperature change with height are very sensitive to small errors in observations, making it difficult to establish whether the models agree with observations.

Another important feedback process is ice-albedo feedback. When global temperatures increase, ice near the poles melts at an increasing rate. As the ice melts, land or open water takes its place. Both land and open water are on average less reflective than ice, and thus absorb more solar radiation. This causes more warming, which in turn causes more melting, and this cycle continues.

Positive feedback due to release of CO2 and CH4 from thawing permafrost, such as the frozen peat bogs in Siberia, is an additional mechanism that could contribute to warming.[35] Similarly a massive release of CH4 from methane clathrates in the ocean could cause rapid warming, according to the clathrate gun hypothesis.

The ocean's ability to sequester carbon is expected to decline as it warms. This is because the resulting low nutrient levels of the mesopelagic zone (about 200 to 1000 m depth) limits the growth of diatoms in favor of smaller phytoplankton that are poorer biological pumps of carbon.

Solar variation



A few papers suggest that the Sun's contribution may have been underestimated. Two researchers at Duke University, Bruce West and Nicola Scafetta, have estimated that the Sun may have contributed about 45–50% of the increase in the average global surface temperature over the period 1900–2000, and about 25–35% between 1980 and 2000. A paper by Peter Stott and other researchers suggests that climate models overestimate the relative effect of greenhouse gases compared to solar forcing; they also suggest that the cooling effects of volcanic dust and sulfate aerosols have been underestimated.[38] They nevertheless conclude that even with an enhanced climate sensitivity to solar forcing, most of the warming since the mid-20th century is likely attributable to the increases in greenhouse gases.

A different hypothesis is that variations in solar output, possibly amplified by cloud seeding via galactic cosmic rays, may have contributed to recent warming. It suggests magnetic activity of the sun is a crucial factor which deflects cosmic rays that may influence the generation of cloud condensation nuclei and thereby affect the climate.

One predicted effect of an increase in solar activity would be a warming of the stratosphere. The observed trend since at least 1960 has been a cooling of the lower stratosphere, which is one of the predicted results of greenhouse gas warming. Reduction of stratospheric ozone also has a cooling influence, but substantial ozone depletion did not occur until the late 1970s. Solar variation combined with changes in volcanic activity probably did have a warming effect from pre-industrial times to 1950, but a cooling effect since. In 2006, Peter Foukal and other researchers from the United States, Germany, and Switzerland found no net increase of solar brightness over the last thousand years. Solar cycles led to a small increase of 0.07% in brightness over the last 30 years. This effect is far too small to contribute significantly to global warming. A paper by Mike Lockwood and Claus Fröhlich found no relation between global warming and solar radiation since 1985, whether through variations in solar output or variations in cosmic rays. Henrik Svensmark and Eigil Friis-Christensen, the main proponents of cloud seeding by galactic cosmic rays, disputed the findings of Lockwood and Fröhlich.

To stop those causes:

1. Plant more trees

2. Stop burning of rubbers and forests

3. Avoid using CFC(chloro flouro carbon) products

4. Limit the mining of non-renewable resources(like coal) because they recover for many years

5. Increase the law about the environment(for example, the sunction for cutting down trees without permit is $5.00 increase it and will become $50.00 so that we can be more careful)

Answer 28

Rising levels of CO2 in the air are causing global warming. Massive world wide burning of coal and oil are the source of that extra CO2. We burn the coal to make steel and electricity and other things. We burn oil as fuel in cars, planes and ships.

Answer 29

Global warming is caused my greenhouse gases retaining the sun's energy in the Earth's atmosphere, which causes an incrase of temperature.  Greenhouse gases are:

carbon dioxide

sulphur dioxide ( to a small limit)

methane

Chlorofluorocarbons (CFC's)

Basically, the sun's rays are naturally reflected by the surface of the Earth back into space.  Greenhouse gases stop that reflection, and trap the rays in the atmosphere.  The rays are photons, full of energy, which causes increase in overall heat.