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Debates Forum

Debates Forum

  1. Standard member sonhouse
    Fast and Curious
    20 Jun '10 17:52
    http://www.sciencedaily.com/releases/2010/06/100618103558.htm

    Any 'climate change caused by people' denial dudes out there that wish to refute this?
  2. 20 Jun '10 20:14
    "Ocean Changes May Have Dire Impact on People

    ScienceDaily (June 19, 2010) — The first comprehensive synthesis on the effects of climate change on the world's oceans has found they are now changing at a rate not seen for several million years."
  3. 20 Jun '10 20:15
    several million years ago, did Lucy the oft-Tree-Dwelling Hominid tool around in a combustion-engine-powered Fred Flintstone Special?
  4. Standard member sonhouse
    Fast and Curious
    20 Jun '10 20:25
    Originally posted by zeeblebot
    several million years ago, did Lucy the oft-Tree-Dwelling Hominid tool around in a combustion-engine-powered Fred Flintstone Special?
    I gather you are playing devil's advocate here. There were definite spikes in CO2 from about 3 million years ago of course from natural causes but today's spike cannot be attributed to any natural cause, considering tens of millions of vehicles on the roads and fossil fuel burned profligately in thousands of power plants around the world. One tank of petrol burned adds hundreds of pounds of CO2 that wasn't there before.
  5. Standard member sh76
    Civis Americanus Sum
    20 Jun '10 20:37
    Originally posted by sonhouse
    I gather you are playing devil's advocate here. There were definite spikes in CO2 from about 3 million years ago of course from natural causes but today's spike cannot be attributed to any natural cause, considering tens of millions of vehicles on the roads and fossil fuel burned profligately in thousands of power plants around the world. One tank of petrol burned adds hundreds of pounds of CO2 that wasn't there before.
    Do you not see that your statement assumes the conclusion it sets out to prove?
  6. Subscriber AThousandYoung
    Poor Filipov :,(
    20 Jun '10 20:44
    Originally posted by zeeblebot
    several million years ago, did Lucy the oft-Tree-Dwelling Hominid tool around in a combustion-engine-powered Fred Flintstone Special?
    The transition between the end of the Eocene and the beginning of the Oligocene, called the Grande Coupure in Europe, occurring 33.9 ± 0.1 Ma, is marked by large-scale extinction and floral and faunal turnover

    http://en.wikipedia.org/wiki/Eocene-Oligocene_extinction_event

    About 34 Ma, the time of the Eocene-Oligocene extinction event and when the Antarctic ice sheet started to take its current form, CO2 is found to have been about 760 ppm

    http://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth%27s_atmosphere#Historical_variation