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Global Warming

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Global Warming Some quotes from politicians, scientists and others Dr. James E. Hansen (1988) NASA is 99 percent certain that the warming trend was not a natural ... – PowerPoint PPT presentation

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Title: Global Warming


1
Global Warming
  • Some quotes from politicians, scientists and
    others

2
Dr. James E. Hansen (1988)
  • NASA is 99 percent certain that the warming
    trend was not a natural variation but was caused
    by a buildup of carbon dioxide and other
    artificial gases in the atmosphere.
  • Its time to stop waffling so much and say the
    evidence is pretty strong that the greenhouse
    effect is here.

NASA Scientist addressing US Congress June 1988
3
(No Transcript)
4
Sir Ian Lloyd (1989)
  • The public was unaware of the enormous scale of
    the action that was needed to tackle the threat
    to the worlds climatekeeping mans tenancy on
    earth might require a worldwide programme by
    comparison with which all previous endeavours,
    even in war and in putting a man on the moon,
    will pale into insignificance.

British Conservative MP addressing the House of
Commons (The Times, London 10th Nov 1989)
5
Stephen H. Schneider (1990)
  • .Many critiques somehow understress the fact
    that the sword of uncertainty has two blades
    that is , uncertainties in physical or biological
    processes which make it possible for the present
    generation of models to have overestimated future
    warming effects, are just as likely to have
    caused the models to have underestimated change

From Global Warming The Greenpeace Report
6
Margaret Thatcher 1990
  • .we have an authoritative early warning system
    an agreed assessment of some three hundred of the
    worlds leading scientists of what is happening
    to the worlds climate a report of historic
    significance what it predicts will affect our
    daily lives.

In an address to the IPCC scientists on the
morning of the 15th May 1990.
7
Bill McKibben (1990)
  • Worldwide, the six warmest years for which we
    have records were all in the 1980s. That doesnt
    prove that the planet is heating up, any more
    than rolling 10 sevens in a row proves that the
    dice are loaded.

From Planet Earth and the Point of No Return,
The Independent. 27th January 1990
8
Bill McGuire (2002)
  • Notwithstanding a few maverick scientists, oil
    company representatives and the president of the
    worlds greatest polluter, the overwhelming
    evidence consensus amongst those who have a grasp
    of the facts is that without a reduction in
    greenhouse gas emissions things are going to get
    very bad indeed.

From A Guide to the End of the World,
Everything you never wanted to know
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