Global frozing
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1827: French polymath Jean-Baptiste Fourier predicts an atmospheric effect keeping the Earth warmer than it would
otherwise be. This was the effect that would later be called, by an inaccurate analogy, the "greenhouse effect."

1863: Irish scientist John Tyndall concluded that water vapour is the strongest absorber of radiant heat in the atmosphere
and is the principal gas controlling air temperature.

1896: Swedish scientist Svante Arrhenius formulated his greenhouse law: "If the quantity of carbonic acid increases in
geometric progression, the augmentation of the temperature will increase nearly in arithmetic progression."
1958: American scientist Charles
David Keeling started continuous
monitoring of CO2 levels in the
atmosphere at the Mauna Loa base in
Hawaii and soon he finds a regular
year-on-year rise.

1979: World Meteorological
Organization sponsored the First
World Climate Conference, which
adopts climate change as major issue
and calls on governments "to foresee
and prevent potential man-made
changes in climate."

1985: UN Environment Programme,
World Meteorological Organization and
International Council for Science
organized the conference on the
"Assessment of the Role of Carbon
Dioxide and Other Greenhouse Gases
in Climate Variations and Associated
Impacts", which concluded that
greenhouse gases "are expected" to
cause significant warming in the next
century and that some warming is
inevitable  
1987: Warmest year since records began.

1988: UN Environment Programme and World
Meteorological Organization established "The
Intergovernmental Panel on Climate Change" (IPCC) to
evaluate the risk of climate change caused by human
activity. American scientist John Holdren during his
testimony to Congress presented the research results of
NASA Goddard Institute for Space Studies and
concluded that "the evidence that the earth is warming
by an amount which is too large to be a chance
fluctuation and the similarity of the warming to that
expected from the greenhouse effect represents a very
strong case"
1990: The first report of the IPCC finds that the planet has warmed by 0.5°C in the past century.

1991: Mount Pinatubo erupts in the Philippines, throwing debris into the stratosphere that shields the Earth from solar
energy, which helps interrupt the warming trend. Average temperatures drop for two years before rising again.

1997: Kyoto Protocol agrees legally binding emissions cuts for industrialised nations, averaging 5.4%, to be met by 2010.

2002: Parliaments in the European Union, Japan and others ratify Kyoto.

2003: Globally it is the third hottest year on record, but Europe experiences the hottest summer for at least 500 years,
with an estimated 30,000 fatalities as a result.

2005: On 16 February, the Kyoto Protocol comes into force. In December, Kyoto signatories agree to discuss emissions
targets for the second compliance period beyond 2012, while countries without targets, including the US and China, agree
to a "non-binding dialogue" on their future roles in curbing emissions. Europe launches its Emissions Trading Scheme,
despite criticism of the idea.

2006: Paul Crutzen, a Dutch Nobel prize winning atmospheric chemist suggests the massive injection of sulfur into the
stratosphere to form particles that reflect sunlight away.

2007: The fourth Assessment Report of the IPCC places the blame for global warming  firmly on humankind

2008, September: The internet site globalfrozing.com was created to promote the methods, which can "affect the
temperature of atmosphere and greenhouse gas concentrations directly"

2008, November: British "Innovation, universities, science and skills" committee of parliament held the hearing named
"Geo-engineering" dedicated to the "beneficial intervention in order on a global scale to change the climate in directions
that we wish in the context of severe global heating with which we are threatened"

2009, March: American Meteorological Society issues the "Policy Statement on Geoengineering". John Holdren becomes
American president science adviser.

2009, April 08:  John Holdren told The Associated Press that Obama administration is discussing radical technologies to
cool Earth's air, such as using the stratospheric sulfur aerosols. The words "geoengineering" and "global cooling" become
the common buzz in press.
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