Can u give me some info on global warming?

Question

Like its effects and causes and how to prevent it.

thank you

Answer 1

The presence of carbon dioxide in air cause global warming as it consume the heat of the sun much more than any gas and it makes the earth warmer and now human beings are increasing the volume of carbon dioxide in the air. So this process is going at a much faster speed. It can melt the glaciers and case floods.

By not increasing carbon dioxide we can prevent it but not completely

Answer 2

Global warming is caused by the excess of Carbon di-oxide in the atmosphere. The cutting of trees and vehicular emission is increasing the amount of carbon-di-oxide. thus it is forming a thich layer around the earth that lets the rays of the sun enter but prevents it from escaping due to which the earth is getting heated up. because of global warming the ice caps will eventually melt and the level of water in the oceans will rise because of which places near the coastal areas will get completely submerged and you me and millions of others will not exist many years 4m now. the polar bears and other animals living in the tundra region will all perish.

to learn more bout d effects u can go to

http://en.wikipedia.org/wiki/Effects_of_...

to learn bout the causes

http://www.ecobridge.org/content/g_cse.h...

Answer 3

Rant:

I'm about tired of Dr. Jello.

The sun causes all of the warming in the earth right?

Have you ever held a magnifying glass up to a leaf?

IT CATCHES ON FIRE!!!

Co2 Gas burns up the Ozone layer and turns it into a magnifying glass.  All non-Global warming believers should be shot.

Now to answer your Question:

Causes:

Gas Guzzling cars or any CO2 emissions.

Aerosol cans (rofl)

Cow c**p (methane)

Water Vapor

Preventing it:

Teach other people:

The only way that one person can make a difference in Global Warming is to get 20 people to be more aware of it.

Aftermath:

Sea levels rise.

Glaciers melt.

OH NO!!!

Answer 4

global warming is the continuous increase of the temperature of earth bcoz of increase in CO2 concentration in the atmosphere. it has led to shrinkage of arctic & antarctic region, increase in sea level, varying temperature, extinction of some animal & plant species, melting of ice caps.

                       causes:-

                              industrialisation, deforestation, overgrazing, automobiles etc.

                           prevention:-

                                   though it cannot b stopped but can b controlled by afforestation, stop burning fossil fuels.

Answer 5

if not prevented may cause frequent droughts & floods

low lying places like Mumbai & Shanghai may be submurged in water........

use ecofriendly things

plant more trees

do not use CFC coz they destroy the ozone layer

i can write full 5 sheets on this

but right now i have less time 2 write so much !!!!

Answer 6

Well, all I can say is to do this experiment. For all that does not believe in global warming, they cannot dispute this fact as well. If you had a greenhouse and parked a running car inside of it with all the windows and doors shut, and left the car running for a week, see how many plants are still living at the end of the week. Our world is like a big greenhouse filled with all kinds of vegetation that produces not only our food but, oxygen as well. Add pollution to this on no matter what scale and you will get the same effect of things dying atleast. All vegetation that is killed off affects everyone the same as it does if you kill off one living creature from the food chain. And we are affecting that big time right now!!! But, vegetation is not only responsable for our food and oxygen, it is responsable for the climate as well. Everyone knows that darker matter attracts more heat cause, if that wans't true we woulnt have a problem wearing black clothes when it gets over 100 degree's. So, the atmosphere is pretty much the same. When you have smog above you being a darker than a clear sky, it traps heat making cities warmer and oceans as well. The ocean current gets heated because there is less of a chance for the heat to be deflected making it as well more warm and storms stronger. The polar caps are responsable for the cooling of the oceans but, pollution is turning up the heat interfearing with this natural process. Its not just from vehichles doing this but, factories, and big utility companies as well. Anything that helps put smog up in the sky contributes. When we leave our lights on all night long using more electricity, we are putting more of a demand on the utility companies producing more smog to give us the electricity we demand. As our country grows bigger with buisness we put more demand on transportation getting our goods hauled to point A to B, causing even more smog again!!! As the population of the earth grows, so do these demands with more pollution causing eveything to get out of whack!!!! People that disbelieve this fact not only contribute to higher gas and food prices but, also hurt the economy!!! There are plenty of ways to prevent it, or cut way down on it, and all is public information and education that everyone has available to them. Anything from Solar,Wind,Hydrgen, tide generators, and fuel cells. Many forms are being invented and produced as well. There are many things to do that can help from the smallest things like lighbulbs, to the biggest things like off grid homes. Recycling helps cut down on pollution as well, cutting down on the number of trees being cut down by recycling news papers, and paper sacks!!!! Email people, and pay bills online, rather than to mail them. Every full grown tree that is cut down takes away 7lbs of oxygen away from our atmosphere increasing the earths ability to clean itself up!!! Allot of things we can do to help but, most are lazy, dismissive, and to selfish to do their part!!! I'm sure that allot of us love to have the luxuries that make us happy by having a big SUV, or sportscar but, do nothing but hurt the economy by increasing supply and demand and at the same time adding more pollution with higher gas prices!!! We can all do our part from smaller to bigger things but, also as well choose to accept the facts for what they are and for all to be together on this issue to make a real change not only in our wallets but, for the environment as well!!! For all of those who disagree with me on this, thats ok!!! We all have the right to be ignorant in the land of the free. Keep dismissing the problem, and keep kissing the butts of the oil companies that you love so much, vote for even higher gas prices, and while everyone else complains at the gas station as u fill up your gas guzzling SUV go ahead and give a tip to the attendant taking your money so they can make it to work too!!!

Answer 7

Global warming is a phenomenon of rising atmospheric temperature globally .This phenomenon has been going on for centuries but the problem is its speed at which it is accelerating  , particularly due to man's energy thirst .

It will melt most of the ice sheets in the world and cause rise in sea level across the global leaving many areas inundated .

The only way to prevent it is to stop green house gas emissions .

with regards

http://www.chocolatesavy.com

Answer 8

Collect all details on high carbon pollution and effect due to it on the Os on layer .

De forestation and the increased urbanisation leading to the destruction of nature .Increased use of plastic and waste disposal difficulties .Collect further details if any from seminar topics for preparation of project .

Answer 9

Well because of the earth suffering the consequences of global warming, the snow is melting and it affects many animals that live in the artics like Polar bears and penguins etc...their food is getting less, their territory diminished and their chances are disapearing.

If we do not do something quick we are heading towards very bad times.

Answer 10

The question cannot be answered easily.

I suggest you view a documentary produced by AL-GORE on Global warming the former presidential candidate of the U.S. you will be able to gather plenty of info on Global warming.

Answer 11

Terminology

The term "global warming" is a specific example of global climate change. The term "climate change" can also refer to other periods of overall temperature change such as global cooling. In common usage, the term "global warming" refers to the warming in recent decades and implies a human influence.[11] The United Nations Framework Convention on Climate Change (UNFCCC) uses the term "climate change" for human-caused change, and "climate variability" for other changes The term "anthropogenic global warming" (AGW) is sometimes used when focusing on human-induced changes.

Causes



Components of the current radiative forcing as estimated by the IPCC Fourth Assessment Report.Main articles: Attribution of recent climate change and Scientific opinion on climate change

The Earth's climate changes in response to external forcing, including variations in its orbit around the Sun (orbital forcing] volcanic eruptionsand atmospheric greenhouse gas concentrations. The detailed causes of the recent warming remain an active field of research, but the scientific consensus is that the increase in atmospheric greenhouse gases due to human activity caused most of the warming observed since the start of the industrial era. 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 temperature increase. One such hypothesis proposes that warming may be the result of variations in solar activity.[19][20][21]

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

Main articles: Greenhouse gas and Greenhouse effect

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 lower 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.[23][24] 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%.[25][26] The issue is how the strength of the greenhouse effect changes when human activity increases the atmospheric concentrations of some greenhouse gases.

Human activity since the industrial revolution has increased the concentration of various greenhouse gases, leading to increased radiative forcing from CO2, methane, tropospheric ozone, CFCs and nitrous oxide. 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.[27] From less direct geological evidence it is believed that CO2 values this high were last attained 20 million years ago.[28] 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.[29]



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 385 parts per million (ppm) by volume.[30] 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.[31] Fossil fuel reserves are sufficient to reach this level and continue emissions past 2100, if coal, tar sands or methane clathrates are extensively used.[32]

Feedbacks

Main article: Effects of global warming#Positive feedback effects

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. Warming by the addition of long-lived greenhouse gases such as CO2 will cause more water to evaporate into the atmosphere. Since water vapor itself acts as a greenhouse gas, the atmosphere warms further; this warming causes more water vapor to evaporate (a positive feedback), and so on until other processes stop the feedback loop. The result is a much larger greenhouse effect than that due to CO2 alone. Although this feedback process causes 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.[33] 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.[33]

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.[34]

Another important feedback process is ice-albedo feedback.[35] 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.[36] 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.[37]

Solar variation



Solar variation over the last thirty years.Main article: 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.[38] 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.[39] They nevertheless conclude that even with an enhanced climate sensitivity to solar forcing, mo

Answer 12

OZONE layer protects us 4m d ultra-violet rays of the sun, but it has beeen found that it has got a large holes in it. It has been declared that this layer is getting depleted. Various man-made compunds like CFCs (carbon compounds having both fluorine & chlorine which are very stable and not degraded by any biological process) were found to persist in the atmosphere. As they reach ozone layer, they react with it and resullt in deduction. The layer is gettin lesser and lesser reactive and thus the GLOBAL WARMING is increasing.

Answer 13

Global warming is the increase in average temperature of the earth. Some people believe this is caused by human activity burning oil, coal and other things which is causing CO2 to be released into the atmosphere. Co2 is a greenhouse gas. Greenhouse gasses trap heat from the sun. The earth needs a limited amount of greenhouse gasses to support life on earth/keep the heat in. In the atmosphere, it is mostly water vapor, a major greenhouse gas which holds in the heat. Co2 is only a minor greenhouse gas. If your one of those who believe you can prevent nature, you should stop burning fossil fuels (oil, coal and other stuff) and use renewable energy, stop polluting the earth and plant some trees.

Answer 14

Forget about it.  The threat of global warming is false.

Answer 15

It's called the sun.

Answer 16

search in google websites

Answer 17

yeah..i can explain it 2 u in simple words.....

our earth has been loyal and helpul and protective 2 all da living beings....but we humans have always been selfish and have been causing injury 2 our mother earth...

becoz of dis she is gettin vvv furious and so her blood(in her case water is da blood) has been boiling like h**l!!!

and if we continue 2 destroy her she will commit suicide and splash her blood(water) over us.....thus leading 2 da end of life on earth!!!!

Answer 18

As its for a school project, get the appropriate info by google search, dont completely rely on info provided here on yahoo answers, but u can use the info which might seem good to u. hope ur project goes on well. Good Luck..

Answer 19

one of other consequences would be submergance of land and destruction of sea life...

Answer 20

EFFECTS of global warming-

Rising sea levels, glacier retreat, Arctic shrinkage, and altered patterns of agriculture are cited as direct consequences, but predictions for secondary and regional effects include extreme weather events, an expansion of tropical diseases, changes in the timing of seasonal patterns in ecosystems, and drastic economic impact.

CAUSES-

1.

Carbon Dioxide from Power Plants ,

Emitted from Cars,

Airplanes,

Buildings ,

2.Methane

3.Water Vapor in the Atmosphere Increasing

4.Nitrous oxide

5.Deforestation

6.City Gridlock

7.Carbon in Atmosphere and Ocean

8.Permafrost

9.Tundra

PREVENTION-



1.Avoid chlorine at all cost! Use of any chlorine compounds is very harmful to the environment including bubbles in plastic foam, spray paint, fire extinguishers, bleach and a multitude of discarded household and industrial chemicals.

2.Appliances-

It is very important to keep up on the maintenance of your refrigerator and air conditioners as they can leak very toxic and harmful chemicals.

3.Waste and Recycling-

It is very beneficial to use recycled paper or to use products that are manufactured from ecologically managed forests.

4.Plant millions of trees worldwide, help to cool the planet today.

Answer 21

global warming is the increase in the average golbal temp of the earth and it is caused by green house effect...due to all these emissions frm the factories and industries, harmful gases are escapin into the atmosphere and mostly CO2..it is v.dangerous coz it forms a thick layer round the earth preventing the escape of the solar radiation frm the earth bak to space..so the earth recieves its radiations frm sun but these cant escape bak to space as the CO2 layer blocks it.....this process of the earht heatin up is called GLOBAL WARMIN...and it is real and not just a false threat..im doin a project on this topic too and if u need anything more im ready to help u..hope this much does give u sum help...

Answer 22

Global Warming is NOT FAKE.

It's effects/causes:

Global Warming is caused by pollution and chemical exhaust, also known as Green House Gasses.

It is not a good thing at all. The temperatures will drastically rise, causing Ice Bergs to melt, stranding Arctic animals. It has many other effects that are harmful to us, and worse to our posterity.

How to prevent Global Warming:

turn off lights in rooms that are not occupied

recycle*

buy a hybrid if in need of a new car

clean up any trash in your neighborhood

turn off running water that you're not using

reduce the amount of plastic in your house

car-pool

DO NOT LITTER!!

^there are many other things that you can research!

* you can recycle plastic, aluminum, paper, stria-foam, batteries, etc.

Answer 23

global warming is a natural process it occurs every couple of thousand years many scientists have studied layers of the earths crust and have found a pattern of the earth heating up and then cooling down .So global warming is a myth as far as being caused by man.

Answer 24

Global warming was invented buy the same guy that invented the environment.  Al Gore.

Answer 25

It can't be prevented as the Sun causes all warming on Earth.  Man cannot effect the climate, as we are far too insignificant.