Fraser Mitchell, TCD · ESI SEMINAR # 6 30th April 2010 Fraser Mitchell, TCD Getting to grips with...
Transcript of Fraser Mitchell, TCD · ESI SEMINAR # 6 30th April 2010 Fraser Mitchell, TCD Getting to grips with...
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UCD Earth Sciences Institute
with TCD TrinityHausIn conjunction with the TCD‐UCD Innovation Alliance Public Lecture Series
Transforming Ireland Mobilising Innovation and Enterprise to Become a Prosperous Low Carbon Society
Climate Change in Ireland - what's likely to happen?ESI SEMINAR # 630th April 2010
Fraser Mitchell, TCD
Getting to grips with uncertainty ?
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IPCC Reports
Uncertainties and
controversies in climate
predictions
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Past climates: the range of variation
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Ice Age Earth
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Ice Core Records
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• Natural climate variation can be large
• Natural climate variation can be rapid
• Natural climate is rarely stable
Greenland Ice Core
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Antarctic Ice Core
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Marine Core
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James Croll Milutin Milanković
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Greenland Ice Core
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Deglaciation Thermohaline circulation
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The Little Ice Age
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Net solar radiation at Mauna Loa Observatory, relative to
1958, showing the effects of major volcanic eruptions.
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Sulphate anomalies in Greenland ice core
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Earth has a very sensitive
climate system
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Antarctic Ice Core
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Fossil plants and palaeoatmospheres
Stomata (magnified
400 times)
NO
OF
ST
OM
AT
A
CONC. OF CO2
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Picea glauca
Surface of 13,000 year old
Picea glauca leaf
stomata
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Pine Ridge
Pond
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Fossil plants and
paleoatmospheres
180 Million year old conifer
170 million year old conifer
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Sawdonia ornata
(Lwr Devonian)
400 million year
old stomata
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Royer et al (2004)
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Jackson and Overpeck (2000)
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UCD Earth Sciences Institute with TCD TrinityHausTransforming Ireland Seminar Series
In conjunction with the TCD‐UCD Innovation Alliance Public Lecture Series
With the support of Business in the Community Ireland and in collaboration with
Comhar Sustainable Development Council, Environmental Protection Agency, Geological
Survey of Ireland, Sustainable Energy Authority Ireland, Dublin City Council,
Met Éireann, Enterprise Ireland, Marine Institute and Teagasc
For Further details on the seminar series is available contact [email protected]
A podcast of this seminar will be available on the ESI website soon, please join the online ESI mailing list for such notifications