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GLOBAL WARMING

GLOBAL WARMING. What about global warming ?. Politically Divided. Democrat Position:. The sky is falling…we are all going to roast. Republican Position:. Weather and climate are inherently variable. Republican Position:. This fuss over global warming is just another

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GLOBAL WARMING

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  1. GLOBAL WARMING

  2. What about global warming? Politically Divided

  3. Democrat Position: The sky is falling…we are all going to roast.

  4. Republican Position: Weather and climate are inherently variable.

  5. Republican Position: This fuss over global warming is just another Democrat plot to socialize the economy. Weather and climate are inherently variable.

  6. Bad Meteorology: The greenhouse effect is caused when gases in the atmosphere behave as a blanketand trap radiation which is then reradiated to the Earth. Let’s get one thing straight.The greenhouse effect and global warming ARE NOT the same thing. There is a greenhouse effect, but, if there were not, we would all be dead! It is becoming increasingly clear that we are also experencing global warming, but, that is a different matter.

  7. The greenhouse effect is the name applied to the process which causes the surface of the Earth to be warmer than it would have been in the absence of an atmosphere. Global warming is the name given to an expected increase in the magnitude of the greenhouse effect, whereby the surface of the Earth will almost inevitably become hotter than it is now.

  8. The surface of the Earth is warmer than it would be in the absence of an atmosphere because it receives energy from two sources: the Sun and the atmosphere. The atmosphere emits radiation for the same reason the Sun does: each has a finite temperature. So, just as one would be warmer by sitting beside two fireplaces than one would have been if one fireplace were extinguished, so, one is warmer by receiving radiation from both the Sun and the atmosphere than one would be if there were no atmosphere Curiously, the surface of the Earth receives nearly twice as much energy from the atmosphere as it does from the Sun. Even though the Sun is much hotter, it does not cover nearly as much of the sky as does the atmosphere. A great deal of radiation coming from the direction of the Sun does not add up to as much energy as does the smaller portion of radiation emitted by each portion of the atmosphere but now coming from the whole sky. So, it isn't even as if our atmosphere had only a minor influence on the surface temperature; it has a profound one. In the absence of an atmosphere the Earth would average about 30 Celsius degrees (about 50 Fahrenheit degrees) lower than it does at present. Life (as we now know it) could not exist.

  9. Let’s examine some of the nonsense frequently offered in the name of science Is the greenhouse effect a good thing? Well, yes, if you appreciate living. Does the atmosphere (or any greenhouse gas) act a blanket? At best, the reference to a blanket is a bad metaphor. Blankets act primarily to suppress convection; the atmosphere acts to enable convection. To claim that the atmosphere acts a blanket, is to admit that you don't know how either one of them operates. Does the atmosphere trap radiation? No, the atmosphere absorbs radiation emitted by the Earth. But, upon being absorbed, the radiation has ceased to exist by having been transformed into the kinetic and potential energy of the molecules. The atmosphere cannot be said to have succeeded in trapping something that has ceased to exist.

  10. Does the atmosphere trap heat (in producing the greenhouse effect)? No. As rapidly as the atmosphere absorbs energy it loses it. Nothing is trapped. If energy were being trapped, i.e. retained, then the temperature would of necessity be steadily rising. Rather, on average, the temperature is constant and the energy courses through the system without being trapped within it. Does the atmosphere behave like a greenhouse?The name, greenhouse effect is unfortunate, for a real greenhouse does not behave as the atmosphere does. The primary mechanism keeping the air warm in a real greenhouse is the suppression of convection (the exchange of air between the inside and outside). Thus, a real greenhouse does act like a blanket to prevent bubbles of warm air from being carried away from the surface. As we have seen, this is not how the atmosphere keeps the Earth's surface warm. Indeed, the atmosphere facilitates rather than suppresses convection. .

  11. Energy exchanges in the atmosphere. The figures represent the mean value, over time (for a full year), and over space (for the whole surface of the planet), of each flux shown, in Watts per square meter.

  12. Melting of the Greenland Ice Sheet

  13. ICE CORE

  14. Information from Ice Core

  15. http://www.globalwarmingart.com/wiki/Image:Instrumental_Temperature_Record.pnghttp://www.globalwarmingart.com/wiki/Image:Instrumental_Temperature_Record.png

  16. The dashed red line with diamond symbols represents the monthly mean values, centered on the middle of each month. The black line with the square symbols represents the same, after correction for the average seasonal cycle http://www.cmdl.noaa.gov/ccgg/trends/

  17. General Conclusion The evidence that human activities are causing climate change is as certain as science gets in almost any area. Bette Hileman C&E News October 20, 2003

  18. POSSIBLE POSITIVE EFFECT (?) Bahama New York London

  19. POSSIBLE POSITIVE EFFECT CO2 Plant Fertilization http://www.hortnet.co.nz/publications/science/n/neder/co2_nr4.htm#top

  20. POSSIBLE NEGATIVE EFFECTS http://en.wikipedia.org/wiki/Image:Risks_and_Impacts_of_Global_Warming.png

  21. Ozone depletion • Types of vegetation will change, prairie plants will expand • into tree populated areas, and some types of vegetation • will disappear. • Ecosystems are in danger. • Wildlife looses habitat. • Certain species will disappear • Increase in the population of pests ,such as mosquitoes, crop killing bugs and rats. • Health due to extreme heat waves, the elderly, the infirm, and the poor will suffer more than others. • Extreme weather conditions, an increase in heat waves tornadoes, hurricanes, and severe storms. • Ice packs near the North and South Poles are diminishing in size. • Coastal properties submerged in rising seas. • Increase in floods, it is estimate that sea level rise caused by global warming could put Florida's everglades under water. • Diseases due to mosquitoes. • Dangerously polluted air.

  22. One proposed reaction is that of the rock dunite, or serpentinite with carbon dioxide to form the carbonate mineral magnesite, plus some silica and magnetite. This is proposed by ZECA Corporation, a consortium aiming to produce a low-emission coal-fired power source. • Serpentinite sequestration is favored because of the non-toxic and predictable nature of magnesium carbonate. However, the ideal reaction (reaction 1) takes place only with extremely magnesium rich olivine or serpentine minerals. The presence of iron in the olivine or serpentine will reduce the efficiency of the circuit and reactions 2 and 3 must take place, producing a slag of silica and iron oxide (magnetite). • Serpentinite reactions • Reaction 1Mg-Olivine + Water + Carbon dioxide → Serpentine + Magnesite + Silica • Reaction 2Fe-Olivine + Water + Carbonic acid → Serpentine + Magnetite + Magnesite + Silica • Reaction 3Serpentine + carbon dioxide → Magnesite + silica + water

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