What is "global warming"?

Question

What is "global warming"?

Answer 1

Global warming is real. It's been a prolbem for too long. even the united nations says soy, they being so corrupt. Scientists have known this for decades. We need to do something.

Answer 2

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

Answer 3

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

Global average air temperature near the Earth's surface rose 0.74 ± 0.18 °C (1.3 ± 0.32 °F) during the past century. The Intergovernmental Panel on Climate Change (IPCC) concludes, "most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations,"[1] which leads to warming of the surface and lower atmosphere by increasing the greenhouse effect. Natural phenomena such as solar variation combined with volcanoes have probably had a small warming effect from pre-industrial times to 1950, but a cooling effect since 1950.[1] These basic conclusions have been endorsed by at least 30 scientific societies and academies of science, including all of the national academies of science of the major industrialized countries. The American Association of Petroleum Geologists is the only scientific society that rejects these conclusions,[2][3] and a few individual scientists also disagree with parts of them.[4]

Answer 4

a myth that is not true....dont believe it

Answer 5

it is something provided so that Al Gore has something to talk about.  It really is a joke.

Answer 6

http://www.flixya.com/global-warming-lib...

   Global warming is a hoax, invented in 1988, that combines old myths including limits to growth, sustainability, the population growth time bomb, the depletion of resources, pollution, anti-Americanism and anti-corporate sentiment and, of all things, fear of an ice age. Those that espoused and supported the old myths have joined forced into a new group called "Environmentalists."

Most environmentalists have no technical or scientific credentials whatsoever. What they have are major news outlets ready and willing to publicize their every utterance regardless of whether or not they are backed up by scientific proof. Atmospheric science requires highly technical knowledge and skills, not possessed by the vast majority of the so-called environmentalists, who yet feel qualified to demand that human activity subjugate itself to the whims of their new deity, Mother Nature.

Environmentalists claim that the Earth's atmosphere is getting hotter. They claim that the polar icecaps and glaciers will melt and sea levels will rise over two hundred feet, flooding most coastal cities. They claim that many areas of the Earth will turn into deserts. They make all these claims but cannot substantiate them with real scientific evidence. Parts of the polar icecap and glaciers are melting but other areas of the polar icecaps and glaciers are thickening. The environmentalists base their "proof" of the existence of global warming on the melting areas but are strangely silent, even militant to the point of violence, if anyone mentions the areas that are thickening, and those thickening areas are many.

In the past, there have been many times when the global mean temperatures were warmer, sometimes much warmer and colder, much colder than they are now. Global mean temperatures are cyclical with the seasons but also with other normal cycles, as they have been for the entire history of the Earth. Scientific data from ice cores, tree rings and other indicators of global mean temperatures prove this. Human activity has never been the cause of these global temperature swings as the "global warming" advocates claim. If human activity was the cause, where were the SUVs, the power plants and industries in our historical past? They did not exist. If human activity was not the cause of these global temperature swings, what was?

The energy output of the Sun is far greater in one second than human activity could produce in a million years. The Earth rotates around the Sun. Its orbit is slightly elliptical. The energy reaching the Earth from the Sun varies slightly as the distance from the Sun to the Earth varies due to its elliptical orbit. The Sun activity increases and decreases with fluctuations in the solar flares emitted by the Sun. Differences in these fluctuation rates cause increases and decreases of solar energy hitting the Earth. This causes fluctuations in the global mean temperature of the Earth's atmosphere.

In 2004, the energy from massive solar flares bombarded the Earth with solar energy. This solar energy caused heating of the Earth's surface and atmosphere. Most of the energy of the solar flare eruptions dissipated into space. The amounts of energy ejected were massive, much greater than normal. Had the Earth received a full blast of the solar energy from one of the numerous flare eruptions in 2004, the consequences to life on Earth could have been disastrous. The higher than usual amounts of energy that struck the Earth's atmosphere did have their effects, however, including some heating of the atmosphere.

Then there is the eruption of volcanoes, such as Mt. St. Helens, ejecting dust and ash into the Earth's atmosphere. The amount of dust and ash in the atmosphere varies the amount of energy that can cause heating or cooling of the Earth's atmosphere. Volcanoes also eject the kind of compounds that environmentalists call greenhouse gases. A single eruption the size of the Mt. St. Helens eruption released more of these gases, dust and ash into the atmosphere than all such emissions by human activity since the beginning of recorded human history. And there are numerous volcanic eruptions yearly.

The oceans are also a major source of greenhouse gases, as are trees. Trees and other vegetation take in carbon dioxide and give off other gases such as methane, a major greenhouse gas, and a host of other compounds, many of which are also greenhouse gases. Decaying vegetation also gives off methane gas. Studies of smog in the Los Angeles basin indicate that over 90% of the smog is generated by the vegetation in the area. To aid in perpetuating the hoax, however, environmentalists, aided by major news media outlets, censored and suppressed this study.

Studies have shown that greenhouse gases produced by human activity accounts for around 1 percent of the gases in the atmosphere. The total elimination of human generated greenhouse gases would have a negligible effect on Earth's global mean atmospheric temperatures. The elimination of all U.S. gasoline powered vehicles would reduce worldwide "greenhouse" emissions by less than 0.2%." What would be the effect on global mean temperatures? None. Doubling of manmade greenhouse emissions above current levels would increase the global mean temperature by one degree Centigrade, which is within the normal range of temperature swings.

It is the fluctuations of the Earth's orbit around the sun, volcanic eruptions, the emission of gases by oceans and trees, all natural occurrences, that cause rises and declines in global mean temperatures, i.e., "global warming" and "global cooling," not human activity.

Satellite data taken over the past 25 years indicate no surface or atmospheric warming. If anything there has been a very slight cooling, on the order of 0.01 degree Centigrade.

Recently, astronomers have noticed a thinning of the polar icecaps on Mars.

http://www.flixya.com/global-warming-lib...

Is this "global warming, Mars style" and do Martian SUVs, power plants, and industries cause it? Hardly, but the "environmentalists" think so. Some even blame it on us here on Earth.

Global warming IS a hoax. Those claiming that "global warming" is real have an agenda other than saving the planet from human activity.

Answer 7

Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

Global average air temperature near the Earth's surface rose 0.74 ± 0.18 °C (1.3 ± 0.32 °F) during the past century. The Intergovernmental Panel on Climate Change (IPCC) concludes, "most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations,"[1] which leads to warming of the surface and lower atmosphere by increasing the greenhouse effect. Natural phenomena such as solar variation combined with volcanoes have probably had a small warming effect from pre-industrial times to 1950, but a cooling effect since 1950.[1] These basic conclusions have been endorsed by at least 30 scientific societies and academies of science, including all of the national academies of science of the major industrialized countries. The American Association of Petroleum Geologists is the only scientific society that rejects these conclusions,[2][3] and a few individual scientists also disagree with parts of them.[4]

Climate models referenced by the IPCC project that global surface temperatures are likely to increase by 1.1 to 6.4 °C (2.0 to 11.5 °F) between 1990 and 2100.[1] The range of values reflects the use of differing scenarios of future greenhouse gas emissions and results of models with differences in 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 millennium even if greenhouse gas levels are stabilized.[1] This reflects the large heat capacity of the oceans.

An increase in global temperatures can in turn cause other changes, including sea level rise, and changes in the amount and pattern of precipitation. There may also be changes in the frequency and intensity of extreme weather events, though it is difficult to connect specific events to global warming. Other effects may include changes in agricultural yields, glacier retreat, reduced summer streamflows, species extinctions and increases in the ranges of disease vectors.

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

Answer 8

A method by which already rich people, make the rest of us feel guilty for being alive and so we give them more money so they can buy more houses and fly more jets, have big concerts and waste more energy while pretending to save the world.

Oh and by the way, I'm not gonna explain all this again, but even if the northern ice caps melt, Florida or any other state will not be underwater. It's grade 5 science. It's called displacement, look it up.

Answer 9

Basically, Global warming is the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation.

more on it can be found in wikipedia

-AQA

Answer 10

Global warming is a generic catchall phrase used by people who are trying to change environmental laws so we live in tents and use horses for transportation.

The thought process of these people are that anything we do is bad for the environment. Proof is cited by these people, did you notice that 3 answers started with the same sentences so the answers are canned from somewhere on the Internet, as if a thermometer was stuck in the planet's a*s and a temperature was taken and then call this normal.

Global warming has been taking place except for just a few centuries, for the last 10,000 years. Why is this important, because it ended the last ice age. The planet did this on it's own. It will eventually go back into a cooling period and another ice age will occur. Mankind will not affect this, it's a natural cycle of our planet.

Answer 11

when the caps melt and the water level rises ALOT and florida will begin being covered in water and the water will just keep rising and there thinking the cool places MAY OR MAYNOT become hot and visa versa!

Answer 12

Global Warming is...

http://twowordsglobalwarming.blogspot.co...

That web site will answer your questions and show you a side of it that many human beings would never think of!!!!

Answer 13

Email this encyclopedia entry to a friend    

global warming



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the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution.

The temperature of the atmosphere near the earth's surface is warmed through a natural process called the greenhouse effect. Visible, shortwave light comes from the sun to the earth, passing unimpeded through a blanket of thermal, or greenhouse, gases composed largely of water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Infrared radiation reflects off the planet's surface toward space but does not easily pass through the thermal blanket. Some of it is trapped and reflected downward, keeping the planet at an average temperature suitable to life, about 60°F (16°C).

Growth in industry, agriculture, and transportation since the Industrial Revolution has produced additional quantities of the natural greenhouse gases plus chlorofluorocarbons and other gases, augmenting the thermal blanket. It is generally accepted that this increase in the quantity of greenhouse gases is trapping more heat and increasing global temperatures, making a process that has been beneficial to life potentially disruptive and harmful. During the past century, the atmospheric temperature has risen 1.1°F (0.6°C), and sea level has risen several inches. Some projected, longer-term results of global warming include melting of polar ice, with a resulting rise in sea level and coastal flooding; disruption of drinking water supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological niches disappear; more frequent tropical storms; and an increased incidence of tropical diseases.

Among factors that may be contributing to global warming are the burning of coal and petroleum products (sources of carbon dioxide, methane, nitrous oxide, ozone); deforestation, which increases the amount of carbon dioxide in the atmosphere; methane gas released in animal waste; and increased cattle production, which contributes to deforestation, methane production, and use of fossil fuels.

Much of the debate surrounding global warming has centered on the accuracy of scientific predictions concerning future warming. To predict global climatic trends, climatologists accumulate large historical databases and use them to create computerized models that simulate the earth's climate. The validity of these models has been a subject of controversy. Skeptics say that the climate is too complicated to be accurately modeled, and that there are too many unknowns. Some also question whether the observed climate changes might simply represent normal fluctuations in global temperature. Nonetheless, for some time there has been general agreement that at least part of the observed warming is the result of human activity, and that the problem needs to be addressed. In 1992, at the United Nations Conference on Environment and Development, over 150 nations signed a binding declaration on the need to reduce global warming.

In 1994, however, a UN scientific advisory panel, the Intergovernmental Panel on Climate Change, concluded that reductions beyond those envisioned by the treaty would be needed to avoid global warming. The following year, the advisory panel forecast a rise in global temperature of from 1.44 to 6.3°F (0.8—3.5°C) by 2100 if no action is taken to cut down on the production of greenhouse gases, and a rise of from 1 to 3.6°F (0.5—2°C) even if action is taken (because of already released gases that will persist in the atmosphere).

A UN Conference on Climate Change, held in Kyoto, Japan, in 1997 resulted in an international agreement to fight global warming, which called for reductions in emissions of greenhouse gases by industrialized nations. Not all industrial countries, however, immediately signed or ratified the accord. In 2001 the G. W. Bush administration announced it would abandon the Kyoto Protocol; because the United States produces about one quarter of the world's greenhouse gases, this was regarded as a severe blow to the effort to slow global warming. Despite the American move, most other nations agreed later in the year (in Bonn, Germany, and in Marrakech, Morocco) on the details necessary to convert the agreement into a binding international treaty.

Improved automobile mileage, reforestation projects, energy efficiency in construction, and national support for mass transit are among relatively simpler adjustments that could significantly lower U.S. production of greenhouse gases. More aggressive adjustments include a gradual worldwide shift away from the use of fossil fuels, the elimination of chlorofluorocarbons, and the slowing of deforestation by restructuring the economies of developing nations. In 2002 the Bush administration proposed several voluntary measures for slowing the increase in, instead of reducing, emissions of greenhouses gases.

See P. Brown, Global Warming: Can Civilization Survive? (1997); T. G. Moore, Climate of Fear: Why We Shouldn't Worry about Global Warming (1998); S. G. Philander, Is the Temperature Rising?: The Uncertain Science of Global Warming (1998); K. E. Ready, GAIA Weeps: The Crisis of Global Warming (1998); G. E. Christianson, Greenhouse: The 200-Year Story of Global Warming (1999).  

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Answer 14

the research i have done on global warming is when the earth gets very dry and fresh water supply cannot be found and animals lure in humans yards in search for water.

water like fresh well water, spring water, (not ocean water)

Answer 15

Global Warming is that which happens when I (1) burn a tire on Earth day for Jesus; (2) with my 455 cubic inch, 4-barrel engine 1973 Pontiac Grand Prix, I shred the pavement at stop lights like it was so much ribbon, burning rubber in the process and generating thick, lovely clouds of billowing white smoke; (3) Algore and the effeminate metrosexual John Edwards build mansions having tens of thousands of square footage; (4) Either Nancy Pelosi or Mrs. Bill Clinton open their mouths.

Answer 16

Global warming is a term that means different things to different people.  Some think of it as human caused global warming.  Some think of it as the natural trend that has been happening for thousands of years.  Others think of it as the warming trend that has been happening for the last couple decades.  Without a clear definition, it is difficult to discuss rationally.

Answer 17

A complete LIE created by socialists/communists that want to control your life and take away your FREEDOM.

It is a HOAX.

AlGore is an inept, incompetent, LIAR!!!!

WANGER below is LOST!

Greatest contributor to Greenhouse gasses??? COWS!!!!