Hey, what is global warming? Why it is happening? what are its consequences?

Question

Hey, what is global warming? Why it is happening? what are its consequences?

Answer 1

I hear a lot of talk about global warming and the earths average temperature.  But no one can tell me  ( beyond a doubt) what the  Earths average temperature is supposed to be. If you can't tell me that, don't come to me with all these phony Global Warming scams.

Answer 2

Global warming the increase in the average temp. of the earth's surface. It  is caused by the emission of green house gases, like  carbon dioxide, methane gas, and water vapor.  These gases in the earths  atmosphere cause heat from the sun to literally heat up the earth. For example, the suns rays radiate towards earth, and some are deflected back, the gases make sure that more of the sun’s UV rays do not radiated back from the earth, thus increasing the earths average temperature. The level of these green house gases have increased over the past years a lot, due to human activity mainly. We use less

environmental friendly recourses than we should. Cars and factories produce the most amount of carbon dioxide directly or indirectly.

Global warming can have major effects on the environment. CO2 is largely absorbed by sea water, thus causing the average temp. of the oceans to rise, causing ice burgs to melt, and perhaps the extinction of polar bears. Global warming will also result in the rise of the sea level, and since the sea is slightly warmer more hurricanes can form over larger areas of ocean. The climate change can also affect other species.  It also has an impact on rainfall, which will affect how crops are grown.

Answer 3

Despite the hype in the news, truth is Global Warming is natural and the regular consequence of the suns cycling. History has shown that many warming cycles occur over the eons for which we have been able to track changes through geological and other research. Moreover, data shows that Mars is warming too, no humans there driving about I think.

The consequences of global warming are that environment will change. History has shown though that warming periods are followed by cooling periods. It's natural. It's ridiculous to presume that humans can substantially affect nature, or for that matter measure it.

The only sure consequence of the current Global Warming hype is that a group of politicians will gain power and they will make you and most of the 1st world poorer for the sake of it.

Astrobuf

Answer 4

Global warming is the overall warming of the planet, it is gradual and a reoccuring phenomemenon. The Earth has gone through thousands of cool downs and warmings in its life time, some gradual, some much faster. The present warming is happening with some help from humans though.  World-wide human activity is reponsible for throwing off the planets atmosphere. We are burning fossil fuels at an incredible rate, which throws the natural balance of Oxygen and carbon dioxide. We compound that problem by large scale deforestation, which slows the Oxygen production further. The debate now, is not if global warming is happening or not, but how reponsible are we as humans for causing it, and if we are responsible for causing it, can we do enough to slow it down., before the planet is no longer inhabitable by people.  Right now humans are more of a parasite than a symbiot to the earth. The earth will eventually get tired of us and cook us down to a more managable number. Some of the day to day things we can do to help our plight are, recycling, don't waste fuel or electricity, plant trees and flowers. On a bigger level, humans need to turn away from fossil fuels, get into solar and wind power as the primary suppliers of our power. Most credible scientists agree that unless the human race makes radical changes in the way we treat the planet, we will be directly responsible for our own extinction.

Answer 5

Global warming is the increase in the average measured temperature of the Earth's near-surface air and oceans since the mid-twentieth century, and its projected continuation.

The average global air temperature near the Earth's surface increased 0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the hundred years ending in 2005.[1] The Intergovernmental Panel on Climate Change (IPCC) concludes "most of the observed increase in globally averaged temperatures since the mid-twentieth century is very likely due to the observed increase in anthropogenic (man-made) greenhouse gas concentrations"[1] via an enhanced greenhouse effect. Natural phenomena such as solar variation combined with volcanoes probably had a small warming effect from pre-industrial times to 1950 and a small cooling effect from 1950 onward.[2][3]

These basic conclusions have been endorsed by at least thirty scientific societies and academies of science,[4] including all of the national academies of science of the major industrialized countries.[5][6][7] While individual scientists have voiced disagreement with some findings of the IPCC,[8] the overwhelming majority of scientists working on climate change agree with the IPCC's main conclusions.[9][10]

Climate model projections summarized by the IPCC indicate that average global surface temperature will likely rise a further 1.1 to 6.4 °C (2.0 to 11.5 °F) during the twenty-first century.[1] This range of values results from the use of differing scenarios of future greenhouse gas emissions as well as models with differing climate sensitivity. Although most studies focus on the period up to 2100, warming and sea level rise are expected to continue for more than a thousand years even if greenhouse gas levels are stabilized. The delay in reaching equilibrium is a result of the large heat capacity of the oceans.[1]

Increasing global temperature is expected to cause sea level to rise, an increase in the intensity of extreme weather events, and significant changes to the amount and pattern of precipitation. Other expected effects of global warming include changes in agricultural yields, modifications of trade routes, glacier retreat, species extinctions and increases in the ranges of disease vectors.

Remaining scientific uncertainties include the amount of warming expected in the future, and how warming and related changes will vary from region to region around the globe. Most national governments have signed and ratified the Kyoto Protocol aimed at reducing greenhouse gas emissions, but there is ongoing political and public debate worldwide regarding what, if any, action should be taken to reduce or reverse future warming or to adapt to its expected consequences.

Answer 6

Watch this vid, then you decide!

http://www.yahoo.com/s/903298

heres a link to ALL global warming myths....

http://greenhome.huddler.com/wiki/global...