dash talk contrarians may2010

Upload: jan-dash

Post on 30-May-2018

217 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/9/2019 DASH Talk Contrarians May2010

    1/10

    5/2/10 Copyright Jan W. Dash 1

    The Climate Contrarians

    Who are they?

    What are their goals and tactics?Why are they wrong?

    Jan W. Dash, PhDDirector Climate Initiative, Unitarian Universalist UN Office

  • 8/9/2019 DASH Talk Contrarians May2010

    2/10

    5/2/10 Copyright Jan W. Dash 2

    Who are the contrarians and

    what are their goals? Contrarians mostly not climate scientists

    Example: news weathermen are not climate scientists

    Contrarians mostly a U.S. phenomenon Increasingly powerful; dominate US right-wing agenda Supported by fossil fuel, libertarian think tanks

    Exxonsecrets.org Greenpeace has details

    Contrarian goals

    Stop climate legislation and regulation Stop mitigation of global warming

  • 8/9/2019 DASH Talk Contrarians May2010

    3/10

    5/2/10 Copyright Jan W. Dash 3

    Four Levels of Contrarianism

    and why they are wrong There is no global warming GW

    Fundamental distortion of the facts

    There is GW, but we are not causing it Irrelevant ancient data + ignore science and models

    There is GW + we are causing it, but there areno bad consequences Ignore expert warnings from many different fields

    There is GW + we are causing it + there are badconsequences, but its too expensive to mitigate Outlier economics, ignore green energy benefits

  • 8/9/2019 DASH Talk Contrarians May2010

    4/10

    5/2/10 Copyright Jan W. Dash 4

    The Nature of Science

    Science is knowledge, a web of facts and theory,together very strong But, science is not mathematics

    Mathematics: one chink or a missing fact or minor error invalidates a proof

    Science: never proves, only degrees of certainty

    Scientists are already skeptics, need persuasion BUT once persuaded, need good reasons to change

    Scientists in the field publish in journals Peer review acts as a good (not perfect) filter

  • 8/9/2019 DASH Talk Contrarians May2010

    5/10

    5/2/10 Copyright Jan W. Dash 5

    Contrarian Distortion of Science,

    Tactics, Attacks Contrarian claims are not science

    Wrong, misinformed, irrelevant, distorted, cherry-picking Ex: Sun responsible for recent global warming = wrong

    Good description = Cargo-Cult pseudoscience (Feynman)

    Common contrarian tactics are not scientific Use mass media (not peer-reviewed journals) Copy Big Tobacco doubt on smoking danger tactic Nitpick, turn molehills into mountains, falsely generalize Try to put science in the courtroom, with lawyers

    Swift-Boat attacks on science and scientists Contrarian op-eds, right-wing politicians and blogs Some extremist threats of violence to scientists

  • 8/9/2019 DASH Talk Contrarians May2010

    6/10

    5/2/10 Copyright Jan W. Dash 6

    Solar Fluctuations did NOT cause

    global warming since 1980 Suns output is just Oscillating: NO trend

    Contrarian conjecture recent solar influence: False

    Data: GISS/NASA

  • 8/9/2019 DASH Talk Contrarians May2010

    7/10

    5/2/10 Copyright Jan W. Dash 7

    Contrarian Attacks

    Wrong, Irrelevant, Cherry-picking Contrarian Global Cooling Conjecture => Wrong

    Cherry-picks the starting date 1998, indefensible 1998 high temperature due to huge El Nio weather effect

    Hacked emails => Irrelevant to science results Investigations exonerate Professors Jones, Mann Climate science results, existence of global warming, climate

    data, models, projected impacts are NOT affected

    Himalayan glaciers => Cherry-pick attack IPCC

    2007 IPCC reports, summarize work, 3000 pages One paragraph wrong. Nothing is perfect. Glitch. Used as unwarranted excuse to attack / discredit IPCC

    Ref: Realclimate.org , exhaustive AP email review

  • 8/9/2019 DASH Talk Contrarians May2010

    8/10

    5/2/10 Copyright Jan W. Dash 8

    Shoe is actually on Other Foot Contrarians distort data

    Medieval warming period was NOT global

    Contrarians distort meaning of global warming

    Does NOT mean warming everywhere, every day Contrarians distort uncertainty

    Demand unattainable 100% certainty from scientists Contrarian conjectures - just wrong

    Contrarians distort funding Salaried scientists in it for the money - ridiculous Contrarians hide funding by fossil fuel, libertarians

    Known: $100,000 for one contrarian; $11,000 fee for lecture

  • 8/9/2019 DASH Talk Contrarians May2010

    9/10

  • 8/9/2019 DASH Talk Contrarians May2010

    10/10

    5/2/10 Copyright Jan W. Dash 10

    What About The Contrarians?

    www.digitaluniverse.net/uuuno