what is global warming?

Question

what causes global warming and what are the effects of it

Answer 1

Global Warming - is the observed increase in the average temperature of the Earth's atmosphere and oceans in recent decades.

he Earth's average near-surface atmospheric temperature rose 0.6 ± 0.2 °Celsius (1.1 ± 0.4 °Fahrenheit) in the 20th century. The prevailing scientific opinion on climate change is that "most of the warming observed over the last 50 years is attributable to human

The increased amounts of carbon dioxide (CO2) and other greenhouse gases (GHGs) are the primary causes of the human-induced component of warming. They are released by the burning of fossil fuels, land clearing and agriculture, etc. and lead to an increase in the greenhouse effect. The first speculation that a greenhouse effect might occur was by the Swedish chemist Svante Arrhenius in 1897, although it did not become a topic of popular debate until some 90 years later.

Rising global temperatures are expected to raise sea level, and change precipitation and other local climate conditions. Changing regional climate could alter forests, crop yields, and water supplies. It could also affect human health, animals, and many types of ecosystems. Deserts may expand into existing rangelands, and features of some of our National Parks may be permanently altered.

Attached is the sites that I gathered my information from.

Good IMPORTANT Topic,
James P Reardon Sr.
http://www.bettermember.net

Answer 2

global warming is an increase in the earth's average temperature. it's caused by the greenhouse effect which is an atmospheric phenomenon in which carbon dioxide, water vapor, methane, and other gases, are retained in earth's atmosphere. it happens the same way a greenhouse retains heat, hence the name.. greenhouse effect. anyways, it's a really bad thing for a number of reasons. for one health. throughout the world, diseases depend largely on local climate. extreme temperature can directly lead to loss of life. the heat can also negatively affect air and water quality. global warming also increases the potential for declines in both agriculture and forestry, while increasing insect infestation and plant diseases. coastal zones are especially susceptible to climate change. for them, global warming could mean a rise in sea level, land loss, and more storms and floods. po;ar regions in particular are extremely vulnerable and are probably suffering the most from global warming.

i also recently saw a preview for a show that is supposed to come on national geographic about global warming and how it could very possibly cause the next ice age. ?? sounds interesting..

Answer 3

"Global warming" is a good excuse for a lot of scientists to request money from governments as research grants.

It is caused by the desire of these scientist to have a good job for a good number of years, after which, they will start talking about the dangers of global cooling. It happened in the '70s the other way around, everyone was worried about global cooling.

The effect is more fear so people could continue to press the governments to continue giving money to these scientists.

Answer 4

Hi. The most important part is ocean warming. This has a tremendous impact on weather pattern and sea level. Global warming, or more properly "climate change" is partially caused by human activities that emit green house gases.

Answer 5

The causes of global warming are pollution caused by gases from our cars and factories. Also from spray products such as hair spray. These products create a greenhouse effect on the earth to keep hot gases inside thus making the earth warmer. The spray products puncture the ozone layer which protects us from the suns harmful UV rays.

Answer 6

Global warming is when pollution destroys the ozone layer and
light can get through.The light comes in but is trapped in our atmosphere for some reason and it reflects back to us.
This ozone hole is over the poles and it is rapidly melting the
ice caps. In some year they banned some kind of chemical
that was causing alot of it. The hole got smaller, but it is still
there. If those ice caps melt, they will flood cities like manhattan.
We need to act soon if we are going to stop this ''hole'' from
destoying mankind.

Answer 7

If you want to obtain provide cash for local weather study, do you feel that you can get a cheque in case you say," I want the provide, as I feel that I can end up that the figures that the present paradigm is situated upon are improper" ? The first-rate environmentalist, David Bellamy, has been silenced, and refused airtime. There continues to be no established causative hyperlink among the volume of Co2 within the surroundings, and an expand in worldwide temperatures. The WWWF portraits of the polar bears swimming had been taken within the Arctic summer season; while the ice cap in part melts, as they could not rise up to picture within the iciness. The ice used to be too thick! The East-Anglian uni study figures. "Oh! The figures do not fit our expectancies. Oh good. Keep quiet. Because we all know that we're correct." When the perception, and the religion is extra most important than squarely going through the reputable doubts of plenty of non provide-supported scientists, technological know-how has been superceded via devout zealots. As Oliver Cromwell colourfully stated." I pray thee, within the bowels of Christ, bear in mind that thou mayest be improper."

Answer 8

Global warming is destruction to natural resources, one is the atmosphere..due to pollution the earth's covering is worn out because of the chemicals that is being being excreted from the machine...Our earth is already dying..more natural resources is being harmed because of us..Sometimes you will say that you dont hurt mother nature but unconsciously we are...
The bad effects of it...is that direct sunlight that touches our skin..which is also prone to skin cancer..we breath polluted air..even our water too..that's why we have to buy bottled water to ensure that we are drinking clean water......t.c.

Answer 9

The abnormal increase in earth temprature due to air pollution

Answer 10

global warming

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, which came into force in 2005 after ratification by more than 125 nations.

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).