Researchers present newest update on climate change
science
18 June 2009
A report synthesizing the newest research results
relating to climate change and what action can be taken in
response to climate change was presented today at the
European Policy Centre (EPC) in Brussels. The 36 page report
is written for the non-specialists and is based on
discussions and presentations made at the scientific
congress "Climate change: Global Risks, Challenges &
Decisions" hosted by the University of Copenhagen in March.
The report can be downloaded from
www.climatecongress.ku.dk
Political action needed
This global launch takes place only six months before the
UN Climate Change Conference (COP15) begins in Copenhagen.
The host of the COP15, the Prime Minister of Denmark, Mr.
Lars Løkke Rasmussen, received the report.
"The newest evidence indicates that society faces serious
risks even with a global temperature rise of only about 2
degrees. If society wants to minimize these risks, then
action must be taken now", says Professor Katherine
Richardson (University of Copenhagen), Chair of the
Scientific Steering Committee of the congress and Chair of
the writing team. She adds:
"Society has all the tools necessary to respond to
climate change. The major ingredient missing is political
will. Already many societies are struggling with the effects
of climate change. If society wants to avoid even more
serious, and in most cases irreversible impacts of climate
change, then there is very little time left. The greenhouse
gases in the atmosphere are already at a level that is
predicted to cause warming of around 2 degrees so major
emission cuts should be made immediately to retain climate
change. The clock is ticking."
The launch of the synthesis report took place before the
EU Summit in Brussels begins later today. Here, the EU
leaders will be discussing the climate change issue.
Rapid climate changes
Professor John Schellnhuber, Director of the Potsdam
Institute for Climate Impact Research and member of the
writing team underlines that the need for action is bigger
than often taken into account in the political negotiations.
"Even if we keep global warming below two degrees, we
will still see extreme effects of climate change on our
societies", and data collected since the production of the
2007 IPCC Report indicate that several climate indicators
(for example, sea-level rise, ocean temperature,
glacier-melt, Arctic sea ice melt, ocean acidification) all
are changing at the maximum rate projected at the time of
the last IPCC report or even faster.
"Even with only one to two degrees warming there is
evidence pointing towards the very real possibility of
triggering tipping points caused by human man made climate
change. This would lead to societal disruption for very
large numbers of people. The tipping points we are looking
at is for example the melting of the Greenland ice sheet,
the abrupt change to the Asian Monsoon to a substantially
drier state, or the loss of water storage capacity in the
Himalayan glaciers. But we're also starting to see signs of
tipping points in connection with ocean acidification. This
may cause creation of areas in the ocean with less oxygen
which could put places in danger such as the Great Barrier
Reef. To recover ecosystems like that would likely take
hundreds of thousands, if not many millions of years,
although true recovery is impossible because extinctions are
irreversible", Professor Schellnhuber says.
Poor countries suffer the most
Professor Mohan Munasinghe, Vice-Chair of the IPCC-AR4,
Chairman of the Munasinghe Institute for Development,
Colombo, and Director General of the Sustainable Consumption
Institute, Manchester University, is also a member of the
writing team. He says:
"The poor countries and the most vulnerable citizens
today are suffering the most due to natural disasters,
hunger, and sickness, even though the developed countries
are mainly responsible for the climate changes we are
beginning to see. As climate change continues the effects
will also be seriously felt in developed countries". He
continues:
"We cannot afford to take a business as usual approach to
solving the climate challenge, because it will exacerbate
all the existing problems we face, especially poverty.
Future generations will inherit an unliveable planet.
Climate change and sustainable development are serious,
interlinked problems that can be solved together, provided
we begin immediately. We know enough already to take the
first steps towards making development more sustainable that
will transform the risky "business-as-usual" scenario into a
safer future. Adaptation and mitigation measures must be
better integrated with sustainable development strategy. Low
or no-carbon technologies are critical aspects of the
mitigation efforts needed in the 21st century, and
adaptation safety nets must protect the poor, who are the
most vulnerable to climate change impacts".
The synthesis report is written by a team of researchers
from around the world and it has been vetted by a long list
of researchers and organizations.
Background information
The synthesis report presents an extended and more
detailed version of the six key messages that were presented
in the closing session of the international scientific
congress Climate Change: Global Risks, Challenges &
Decisions held in Copenhagen 10–12 March. The congress
attracted more than 2000 scientists from over 70 countries.
Review procedure of the synthesis report
The synthesis report has been put together by a writing
team of 12 internationally respected scientists from all
continents and has gone through an extensive scientific
review by the Scientific Steering Committee, scientists from
the International Alliance of Research Universities, the
session chairs at the congress, and the Earth System Science
Partnership (ESSP). See the whole review procedure at
www.climatecongress.ku.dk/roadtocop15.
The writing team
- Balgis Osman-Elasha
- Daniel M. Kammen
- Diana Liverman
- Hans Joachim Schellnhuber
- Joseph Alcamo
- Katherine Richardson
- Mohan Munasinghe
- Nicholas Stern
- Ole Wæver
- Rik Leemans
- Terry Barker
- Will Steffen
The organizers
The congress was organized by the International Alliance
of Research Universities (IARU):
- Australian National University
- ETH Zürich
- National University of Singapore
- Peking University
- University of California, Berkeley
- University of Cambridge
- University of Copenhagen
- University of Oxford
- University of Tokyo
- Yale University.
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