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lakshmi121 (January 1, 1970 at 12:59 am)
At the peak of the last glaciation, about 20 000 years ago, approximately 97% of Canada was covered by ice (up to two kilometers (one mile) thick). It ended about 10 000 years ago. Science literature universally recognizes that this was not cause by a dramatic anthropogenic warming.
NMRA (January 1, 1970 at 12:59 am)
the polar ice caps havn't not been melting at any point in the last 28 THOUSAND YEARS!!!its all obviously because of our carbon emissions
wkwickham (January 1, 1970 at 12:59 am)
same spam comment - blah blahno acceptance30,000 real scientists dont agreedon't let this ONE person fool you
grastog1313 (January 1, 1970 at 12:59 am)
Unlike blogs and videos, the science literature universally recognizes anthropogenic warming, with almost unanimous concern it poses a severe threat, based on the evidence that can be found there. Anyone claiming an exception is welcome to provide the reference - title, authors, journal, vol. number, pages, publication year - with a VERBATIM QUOTATION OF ANY PASSAGE ALLEGING NON-EXISTENCE OF ANTHROPOGENIC WARMING. Given the universal acceptance, science has moved on to focus on CO2 mitigation.
wkwickham (January 1, 1970 at 12:59 am)
again, simply not true - when you take the time to read this yourself - and I know you have it is not universal at allthe literature is filled with so many maybes, mights, probable comments it essentailly is meaningless
grastog1313 (January 1, 1970 at 12:59 am)
Unlike 7-8 years ago, when scientific consensus judged anthropogenic warming only to be "likely", the literature now universally recognizes the warming, with near universal perception it poses a severe threat if CO2 is not abated (see AR4 WG1). The most compelling evidence is in the journals, but those without access can Google "Global Warming" for a wikipedia overview, "Climate Book" for rigorous mathematics, and "Lean Rind 2008" for a recent paper confirming CO2 predominance in recent warming.
wkwickham (January 1, 1970 at 12:59 am)
no thats not true either - there are some scientists who have said they have observed a warming trend between 1975 and 2005 and that humans "are likely" contributinghardly science , hardly a confirmation, and hardly worth wrecking our economy overI have seen a scary trend with you eco guys - you care more about this than humanity itselfmany of you want to limit human birthyou see humanity as evilyou hate any successful country or economyI will fight you til my last breath
camb702 (January 1, 1970 at 12:59 am)
Couldn't have put it better myself. Speaking in general terms, the absurdity of trying to control climate change demonstrates yet another effect of accepting popular paranoia as truth.Solar cycles anyone?Peace.
wilbert1755 (January 1, 1970 at 12:59 am)
"(from 280 to 387 ppm) due to anthropogenic emissions since 1850." That's not true ! The 280 to 387 is the complete CO2 increase.A grain of truth in a mountain of nonsense.
grastog1313 (January 1, 1970 at 12:59 am)
Chesterton - What's critical is not %CO2, but %CO2 increase, now 38% (from 280 to 387 ppm) due to anthropogenic emissions since 1850. Based on standard physics principles of radiative forcing, first formalized by Arrhenius in 1896, it's now possible to calculate the effect on temperature of increaing CO2 - about a 3C increase per CO2 doubling. Although these estimates are approximate, they are consistent with observations. Google the wikipedia "Global Warming" article for more details. |
