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BBC Inside Science - BBC - Home

18 Jan 2017 21:24 | Author: smalldog473 | Category: Data analysis phd thesis

Svante Arrhenius (1859-1927) was a Swedish scientist that was the first to claim in 1896 that fossil fuel combustion may eventually result in enhanced global warming. He proposed a relation between atmospheric carbon dioxide concentrations and temperature. He found that the average surface temperature of the earth is about 15 o C because of the infrared absorption capacity of water vapor and carbon dioxide. This is called the natural greenhouse effect. Arrhenius suggested a doubling of the CO 2 concentration would lead to a 5 o C temperature rise. He and Thomas Chamberlin calculated that human activities could warm the earth by adding carbon dioxide to the atmosphere. This research was a by-product of research of whether carbon dioxide would explain the causes of the great Ice Ages. This was not actually verified until 1987.

After the discoveries of Arrhenius and Chamberlin the topic was forgotten for a very long time. At that time it was thought than human influences were insignificant compared to natural forces, such as solar activity and ocean circulation. It was also believed that the oceans were such great carbon sinks that they would automatically cancel out our pollution. Water vapor was seen as a much more influential greenhouse gas.

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  1. author
    purplebear762 17 Jan 2017 23:20

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  2. author
    whitefrog878 18 Jan 2017 02:01

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  3. author
    goldencat443 18 Jan 2017 02:25

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  4. author
    organicdog875 18 Jan 2017 06:09

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  5. author
    greendog935 18 Jan 2017 03:39

    3. You may return as many times as you would like to bid on the trees. You''ll be required to login each time unless you choose the "Keep me logged in" box on the login screen. If you choose this option you will stay logged in until you log out.

    All information you enter is for the purpose of bidding on the trees. Your information will not be shared, sold or given away. It is for bidding purposes only.

  6. author
    beautifulfish421 18 Jan 2017 09:12

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  7. author
    РАСПРОДАЖА онлайн 18 Jan 2017 00:33

    The Earth is heated and cooled by the sun in multiple ways. One way is the direct heating of the surface from the rays that hit it. Another way is from certain wavelengths of the light that are reflected back and get absorbed by greenhouse gases and warm the atmosphere (mostly water vapor, methane and tiny amounts of CO2). This is the process called the greenhouse effect. The third way is through the effects of cosmic rays on cloud formations. The amount of energy we get from the sun changes in cycles. such as sunspot activity and the position of the Earth s orbit versus the sun in a couple hundred year cycle. The energy we get each year from the sun is constantly changing and guess what- the temperature of the Earth is affected by it. This is the problem with the alarmists. They want to blame every aspect of climate and weather on the greenhouse effect when there are many other things going on that they don t take into account. Most scientists now believe the alarmists are giving FAR too much weight to the greenhouse effect and too little or NO weight to any other of many known factors in their computer models. So their computer model predictions really are just complicated science fiction.

  8. author
    redelephant821 18 Jan 2017 04:10

    Global warming is an example of climate change. Global warming can be triggered by an increase in greenhouse effect. But global warming can trigger a large melt of glaciers that spreads cold fresh water over the oceans, producing a powerful Nina effect. in a word we have a drastic climate shift caused by global warming that is not always warmer. The Greenhouse effect is created mostly by water vapour, which in turn increases as temperature rises.and rising temperature means we get less cloud cover, so less reflectivity, so more warming. Increased cloud cover occurs with less water vapour and lower temperatures. Greenhouse effect is cause by gases bending light, multiply, so that it goes back to earth when it is long wave energy re-radiating from earth. We have several other greenhouse gases, principal among them being CO2 and CH4 (methane). Global warming causes increased CO2 and increased methane in hte atmosphere, Increased CO2 or methane will increase greenhouse effect and so global warming. Burning of fossil fuels can increase the amount of CO2 in the atmosphere whenever the amount of new CO2 exceeds the ability of plants to remove the CO2, and the oceans to sequester it. Warmer temperatures appear to limit the ability of both plants and oceans to remove CO2 from the atmosphere. CFCs tend to break up a very high layer of air that reflects ultraviolet light away from earth. CFCs have ceased to be the main culprit, with the leading cause now being chlorine lost from chlorinated water. With less high level reflectivity we get more total radiation striking the earth, warming up solids and liquids. A mjor period of global warming appears to be followed after only hundreds of years by a plunge into an ice age. the last stage of climate change before we start over with global warming.

  9. author
    Adler Tasha 18 Jan 2017 05:26

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    All information you enter is for the purpose of bidding on the trees. Your information will not be shared, sold or given away. It is for bidding purposes only.

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  10. author
    heavydog514 18 Jan 2017 07:33

    Not much difference. Greenhouse effect is large amount of CO2 in air - plus smog. Global warming is caused by Greenhouse effect. If you live in an area where when you look at the sun, and its a big hazy ball - and the air is kinda soupy - that s greenhouse.

  11. author
    lazylion229 18 Jan 2017 04:51

    3. You may return as many times as you would like to bid on the trees. You''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''ll be required to login each time unless you choose the "Keep me logged in" box on the login screen. If you choose this option you will stay logged in until you log out.

    All information you enter is for the purpose of bidding on the trees. Your information will not be shared, sold or given away. It is for bidding purposes only.

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  12. author
    blueladybug518 18 Jan 2017 01:11

    3. You may return as many times as you would like to bid on the trees. You'll be required to login each time unless you choose the "Keep me logged in" box on the login screen. If you choose this option you will stay logged in until you log out.

    All information you enter is for the purpose of bidding on the trees. Your information will not be shared, sold or given away. It is for bidding purposes only.

  13. author
    м¡оуай❥❥ 18 Jan 2017 00:06

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    All information you enter is for the purpose of bidding on the trees. Your information will not be shared, sold or given away. It is for bidding purposes only.

    Causes of racism essay boxer animal farm allegory essay yachmenev dissertation defense journal critique essay overview.

    One of the biggest problems facing the world today is global warming. Many scientists believe that our production of carbon dioxide and other greenhouse gases is having a heating effect on the atmosphere, and this could be very dangerous for human life. This essay will examine the problem of global warming and suggest some ways of solving the problem.

    There are several things we can do to solve the problem of global warming. One solution is to stop producing C02. We can do this by switching from oil, coal and gas to renewable energy. Another solution is to plant more trees. Trees absorb carbon dioxide and produce oxygen, which is not a greenhouse gas. A third solution is to use less energy and to recycle more products. Generating electricity is one of the main sources of carbon dioxide. If we use less electricity, we will produce less C02.