... IPCC 4th Assessment Report
Climate Change Reconsidered
... A new 880-page account of climate change science, similar in scope to the science volume of
IPCC’s 4th Assessment Report, has just been released. The Report includes summary discussion
of relevant and recent scientific publications. NIPCC has been written by an international team of
32 expert scient ...
... Some researchers believe that global
warming - is a myth, some scholars
reject the possibility of human impact on
HKIE Climate Change Corner Issue 74 (Dec 13)
... over the last two decades, the Greenland and Antarctic ice sheets have been
the rate of sea level rise since the mid-19th century has been larger than the mean
rate during the previous two millennia, with high confidence;
CO2 concentrations have increased by 40% since pre-industrial tim ...
... Intergovernmental Panel on Climate Change
• Established 1988
• Co-sponsored by World Meteorological Organization
(WMO) and United Nations Environment Programme
• Working Group I (the physical science basis)
• Working Group II (impacts, adaptation and
• Working Group III ...
Global Warming Measurements of temperature taken by instruments
... world, on land and at sea have revealed that during the 20th century
the Earth’s surface and lowest part of the atmosphere warmed up
on average by about 0.6°C. During this period, man-made emissions
of greenhouse gases, including carbon dioxide, methane and nitrous
oxide have increased, largely as a ...
IPCC Fifth Assessment Report: Climate Change 2013/14
... Projections of future global mean temperature change and sea level rise confirm the potential
for human activities to alter the Earth's climate to an extent unprecedented in human history;
The long time-scales governing both the accumulation of greenhouse gases in the atmosphere
and the response of ...
CO2 Variations, 1999 Mauna Loa, Hawaii
... • Feb 7 2007: United Nations Env
Programme - Intergovt Panel on Climate
Change - observed warming since the
20thC is very likely due to anthropogenic
• April 2 2007: US Supreme Court:
anthropogenic CO2 is a pollutant
Dear Gary Johnson
... 3. The IPCC evaluates current research. It does not carry out its own original
a. A main activity of the IPCC is to publish assessment reports (ARs) on
topics relevant to the implementation of the United Nations Framework
Convention on Climate Change (UNFCCC) (see below).
b. ARs are publis ...
... What’s Causing the Carbon Dioxide Level in Our Atmosphere to Increase?
1. Burning of fossil fuels.
Climate change: New report from the world`s leading
... European Environment Commissioner Stavros Dimas called for an urgent
start to international negotiations on a comprehensive new global climate
change agreement following today's publication of alarming scientific
evidence by the Intergovernmental Panel on Climate Change (IPCC). The
consensus report ...
Mitigating Climate Change: The third part of the IPCC AR5 Climate
... The Intergovernmental Panel on Climate Change (IPCC) is the world’s leading body for the
scientific assessment of climate change, established to inform governments in decision-making.
The IPCC is best known for its comprehensive Assessment Reports, published about every six
years (since 1990). The 5 ...
... effective global response to climate change.
(4) The third object of this Act is:
(a) if Australia is a party to a comprehensive international agreement
that is capable of stabilising atmospheric concentrations of
greenhouse gases at around 450 parts per million of carbon dioxide
equivalence or lowe ...
an overview - A Newer World
... The global renewable energy revolution is upon us. There are many exciting
developments in the sector including initiatives to decentralize energy production. These
developments are critical for global efforts to decarbonize and also provide a way to provide
clean energy services to the hundreds of ...
Global Climate Change - Worth County Schools
... climate change
• Carbon dioxide, methane, and nitrous oxide
levels in atmosphere have increased greatly due
to human activities since 1750 and now far
exceed previous levels
• Carbon dioxide has increased by approximately
80% since 1970
Can models accurately simulate the complex climate system?
... • How and when will our fossil fuel use change?
• Will future , yet-to-be-discovered technologies mitigate the problem?
• How will changing economics, global population, and political processes
affect our ability to tackle the problem?
1824 French physicist Joseph Fourier is first to describe a
... Scientists at the World Climate Program conference at Villach in Austria confidently predict that
increased CO2 concentrations will lead to a significant rise in the mean surface temperatures of the
earth. A hole in the ozone layer is discovered over Antarctica.
IPCC Fourth Assessment Report
Climate Change 2007, the Fourth Assessment Report (AR4) of the United Nations Intergovernmental Panel on Climate Change (IPCC), is the fourth in a series of reports intended to assess scientific, technical and socio-economic information concerning climate change, its potential effects, and options for adaptation and mitigation. The report is the largest and most detailed summary of the climate change situation ever undertaken, produced by thousands of authors, editors, and reviewers from dozens of countries, citing over 6,000 peer-reviewed scientific studies.It supersedes the Third Assessment Report (2001), and is superseded by the Fifth Assessment Report.The headline findings of the report were: ""warming of the climate system is unequivocal"", and ""most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations.""