Global Warming: Fact or Fiction?

From http://scienceinsociety.northwestern.edu - Global Warming: A Threat to Biodiversity is a Northwestern University public outreach program to help the general public understand the reality of global warming and its impact on biodiversity. A panel of five experts discuss- in plain English- the scientific and social issues involved in the ecological aspects of global warming. (2 of 7 - Global Warming) Dr. Fred Mackenzie discusses the science of global warming, including the greenhouse effect, evidence for industrialization's contribution to climate change, and predictions of global warming's effect on our environment.

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[grunder20]

THIS IS A FACT! ITS PROVEN, THEIR ARE NUMEROUS EVIDENCES!

[thegreeensky]

well discussed... nice facts..

[cupera1]

Respond to this video... 1972 – Kukla-Mathews publishes in Science, an article about the end of the current inter glacial. Also writes a letter to Nixon in 1972, specifically warning about global cooling.

1973 – First Climate office started in Feb 1973 (ad hoc Panel on the Present Inter Glacial). This was after a meeting of 42 of the most prominent climatologists, and apparently there was consensus about cooling. Especially as the NOAA, NWS and ICAS were involved.

[cupera1]

1974 – Office of Climate Dynamics opened.

1978 -Carter signs Climate Program Act, partly due to a number of SEVERE WINTER experiences the preceding winters.

[TheDisproof]

@cupera1 Nope: A survey of peer reviewed scientific papers from 1965 to 1979 show that few papers predicted global cooling (7 in total). Significantly MORE papers (42 in total) predicted global warming (Peterson 2008). Whether the MWP was warmer or not (the National Academy of Sciences Report on Climate Reconstructions said it wasn't warmer than today globally), the fact is that the factors that caused past warm periods are not present in sufficient amounts to explain the current warming.

[cupera1]

@Disproof Evidence of the MWP has been found from the Arizona deserts to China so the "local" event story is bogus. I am glad that you did find that the consensus of scientist in the 70's did support global cooling. To say that todays bigger group of fools are any better then the old group of fools is not helping your case. With the GC that has happened in the last 10 years and confirmed by East Anglia CRU shows that the dire predictions are just as false as the ones made in the 70's

[TheDisproof]

@cupera1 While the MWP saw some warm regional climate e.g. greenland, globally the temps today are higher than the MWP as shown by hugely detailed and comprehensive "national academies climate reconstructions" available online. Please look at them. On the 1970's: A survey of peer reviewed scientific papers from 1965 to 1979 show that few papers predicted global cooling (7 in total). Significantly more papers (42 in total) predicted global warming (Peterson 2008).

[cupera1]

@TheDisproof I am amazed that you have detailed temp records from the MWP that show that todays temps are warmer!!! When we have farms and vineyards in Greenland again them we will have fully recovered from the LIA.

The same consensus of scientist that shout AGW now are the same bunch that said it was global cooling in the 70's. They were predicting glaciers to the Dakotas by the year 2000. With that record of accuracy in predictions why believe them now?

[TheDisproof]

@cupera1 Nope, while the MWP saw some warm regional climate, globally the temps today are higher than the MWP as shown by hugely detailed and comprehensive "national academies climate reconstructions" available online

[werecow2003]

Ocean acidification happens when the natural balance between calcium carbonate sequestration and the influx of CO2 is upset. That happens when the level of CO2 rises rapidly. Thus, it's dependent on the rate of change, not just on the absolute amount of CO2 in the air or the temperature. It will balance itself out in the end, but that will take on the order of thousands of years. Too long for corals, which need time to adapt to higher acidity levels.