Wht is globel warming?
Answer:
The idea that the world is getting hotter through greenhouse gasses, to the point where the ice caps will melt and certain crops will no longer be able to be grown, as the ambient temperature is too high for this to occur
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. 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, 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.
What!! .. you really don't know this already.
Look on your tv to find out .. or see how much smog you have around your town.
People think that global warming is never going to arrive . but it's been happening for years now. Look at how all the seasons are changing, how the tide mark is getting higher and higher, how it used to be warm in summer . but now is warmer in autumn.
If you mean "what" is "global" warming...it's a concoction of liberals to raise your taxes and send jobs overseas with a false explanation of the natural changes in climate that have occurred since the Earth began.
he Earth's climate is fueled by the Sun. Most of the Sun's energy, called solar radiation, is absorbed by the Earth, but some is reflected back into space. A natural layer of atmospheric gases absorbs a portion of this reflected solar radiation, eventually releasing some of it into space, but forcing much of it back to Earth. There it warms the Earth's surface creating what is known as the natural "greenhouse effect."
The greenhouse effect is being accelerated by releases of certain gases to the atmosphere that are causing the Earth's temperature to rise.
Without the natural greenhouse effect, the Earth's average temperature would be much colder, and the planet would be covered with ice.
Recent scientific evidence shows that the greenhouse effect is being increased by release of certain gases to the atmosphere that cause the Earth's temperature to rise. This is called "global warming." Carbon dioxide (CO2) accounts for about 85 percent of greenhouse gases released in the U.S. CO2 emissions are largely due to the combustion of fossil fuels in electric power generation. Methane (CH4) emissions, which result from agricultural activities, landfills, and other sources, are the second largest contributor to greenhouse gases in the U.S.
Industrial applications such as foam production, refrigeration, dry cleaning, chemical manufacturing, and semiconductor manufacturing produce other greenhouse gas emissions such as hydrofluorocarbons (HFCs). Smelting of aluminum produces another greenhouse gas called perfluorinated compounds (PFCs). Emissions of NOx and VOC from automobile exhaust and industrial processes contribute to the formation of ground-level ozone or smog, also a greenhouse gas.
To find out more checking the documentary "The Inconvenient Truth" with Al Gore
Global Warming is the natural progression from Ice Age to Tropical Age. It is recorded in geologic records as being a natural cyclic process. The earth has gone throught this dozens of times.
The Global Warming theory that man is CAUSING it is wrong because they think the only think that is doing it is CO2 release.
The Global Warming theory that says it IS natural, but being Agrivated by Man, is the more accurate theory. This is due to a measurable cause and effect observation of the receding forests, and jungles and the expansion of the deserts of the world. This process is known as Desertification.
The Tropical Age is characterised by the expansion of the tree zones around the world, which is the Tropic Age's water storeage system. By cutting them down, and causing more and more solar heat to be retained deeper into the ground due to all the pavement, we are drying the land, and causing it to be harder to maintain a life supporting system. Thus the process into desertification.
The Deforestation is cutting the Older trees down. These are very important to the Tropic Age, as they have the largest Water retaining capabilities.
We are used to the Ice Age conditions. We will have to get used to the new Tropic Age, or worse, Desert Age conditions now. The Ice Age is over for this cycle.
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 s 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 s 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.
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