February 2004 Sir David King Climate Change For Action ...Climate Change Sir David King ......
Transcript of February 2004 Sir David King Climate Change For Action ...Climate Change Sir David King ......
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Global Warming; The ImperativesFor Action From The Science of
Climate Change
Sir David King
Chief Scientific Adviser To The UK Government
The American Association for
the Advancement of Science
13th February 2004
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The Office of Science andTechnology
Science and Engineering Base Group
Foresight
Transdepartmental S&T Group
Science In Government
International
LINK
Finance, Policy and Corporate Affairs
Research Councils
Exploitation
SCIECE
IN
SOCIETY
Chief Scientific Adviser
Science Review
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Good Science Is Imperative forGood Government
The Chief Scientific Adviser (CSA):– Is responsible to the Prime Minister and Cabinet for
the quality of scientific advice within Government andfor advising on Government’s S&T policy and onspecific S&T issues
– Ensures co-ordination of science policy issues withinthe UK Government and with Scotland, Wales andNorthern Ireland
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Research Footprint – Inputs / Outputs
PUBERD as %of GDP
Publications perresearcher
GERD as % ofGDP
Citations perresearcher
Citations perunit GDP
Citations per unitPUBERD
INPUTS OUTPUTS
UKUSACanadaFranceGermanyItalyJapan
Source: Office of Science and Technology
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The Chief Scientific Adviser’s Role
• Reactive– Foot and Mouth Disease (FMD)– BSE
• Proactive and strategic– GM Debate– Climate Change– Post 9/11 activity– Integrating scientific advice into policy
making– Foresight
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The Greenhouse Effect
Source: The Met Office/Hadley Centre
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Carbon Dioxide Levels over the last 60,000Years
Source: University of Berne and National Oceanic and Atmospheric Administration
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Climate Change Is Happening
South Cascade Glacier (Washington State), 1928 -2000Mount Kilimanjaro, Tanzania, 1912-1998
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…….And The Effects Are Real
• Over 160,000 people die worldwide every yearfrom the side-effects of climate change
• Scientific advice, including that of the USNational Academy of Science is that man-madegreenhouse gas emissions are having a noticeableeffect on the earth’s climate
• Climate models predict an increase between 1.4 –5.8 over the next 100 years
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The Effects of Climate Change
Hotter anddrier summers
Milder winter
Reducedsnowfall
Reduced soilmoisture
Extreme events-heat waves,droughts, tornadoes
Sea LevelRise
Transport
Stream flowregimes
TourismIndustry
Agriculture
Disruptedenergy demandpatterns
Reducedwater supply
Coastalerosion
Increasedfloodingand stormdamage
Source:Dr R K Pachauri
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Stabilisation at 750 ppm Stabilisation at 550 ppm
Change from the present day to the 2080s: unmitigated emissions
Reduction in change due to mitigated emissions scenarios
Annual Number of People Flooded
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Global temperatures 1861-2003
N.B. 2003 in green includes a preliminary estimate for December Source:DEFRA
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Observedsimulated by model
Tem
pera
ture
ris
ede
gree
s C
0.0
0.5
1.0
1850 1900 1950 2000
Simulated Global Warming
Source: Hadley Centre
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Difficult Non Linear FeedbackPhenomena
• Deep sea methane clathrates
• Weakening the Atlantic Overturning Circulation-Thermohaline Gulf Stream, global heat conveyor
• Equatorial forest switch from CO2 net absorptionto net emission
• Change in earth’s net albedo, including global iceand cloud cover
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Adapt, Mitigate or Ignore
• We must actively reduce the production ofgreenhouse gases
• Adapt against the significant changes ahead andmanage the risks
• Although market forces will continue to operate,the question is how much can we rely on these?– Must Adapt
– Need to mitigate
– Can’t ignore
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Adaptation
• In the UK - Foresight Project on Flood andCoastal Defences
• Involving around 50 top experts to assess the sizeof the problem, and to consider how the UK couldrespond
• The work is sponsored by the Department forEnvironment, Food and Rural Affairs and involvesa range of Government Departments and bodiessuch as English Nature.
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Change in number of people at high riskby 2080’s
Change in annual economic damage
(residential & commercial properties)
DecreaseNegligible changeLow increaseMedium increaseHigh increase
Scenario: World Markets 2080’s
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Source: Highway57
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Thames Barrier Closures - Tidal, Fluvial and “in-combination”
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The Need for Mitigation
• Improve efficiency of energy usage
• Invest in RD&D in renewable energy, carbonsequestration, fusion
• Avoid exceeding a particular temperature/carbondioxide global targets threshold
• Engage actively in North-South Science,Engineering and Technology capacity building
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0
5
10
15
20
25
US Aus Ger Jap UK Ita SA Fra Swe Cro Chn* Ind*
Energy-related CO2 Emission(2000, tonnes per person)
Source: IEA, Beyond Kyoto and Climate Stabilisation (October 2002)*except China and India (source: World Bank,
World Development Indicators 2000)
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Coal
Renewables
Nuclear
Gas Oil in electricity Oil in plastics
Oil in heating
Oil in transport
Global Energy Mix: 2002
Source: Dr Michael Smith,2002
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The UK Position
• UK is now seeking international commitment toreduce CO2 emissions under UNFCCC
• Ambition is to cut emissions of greenhouse gasesby 60% by around 2050
• UK Government already committed to action:
• By reducing the amount of energy we consume
• Increasing use of renewable and low CO2emitting energy sources
• Energy efficiency
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ITER
Source: ITER
Hydrogen“Skateboard” Car
Source: General Motors
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Tidal Turbines
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The International Challenge
• Global collaboration will depend upon individualcountries having a clear vision of energy futures
• And understanding how critical research is to thedevelopment of the new technology options
• Countries are responding to change….
• …..but cannot solve the problem in isolation
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“We have hard decisions to make. Ourresponse to the threat of globalwarming will affect our personal well-being, the evolution of human society,indeed, all life on our planet.”
- Spencer Weart, 2002
Director, Center of
History of Physics,AIP