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Illinois State University Websites
Illinois State University Websites

... Presentation delivery: In class during last two weeks of class; for bonus points during undergraduate research symposium 1. Climate history of central US. The climate of the Midwest has not remained constant over time. What do instrumental and paleoclimatic records suggest about the historical chang ...
2013YaleEnvPeopleParks
2013YaleEnvPeopleParks

... points ever more clearly, as well as the repair required when we mess up our Earthly nest. Precaution is better than repair and an insurance policy is better than running with risk without cover. Unfortunately, the need for applying precautionary principles appears to have become an historical curio ...
Global warming due to increasing absorbed solar radiation
Global warming due to increasing absorbed solar radiation

... Received 28 January 2009; revised 10 March 2009; accepted 19 March 2009; published 14 April 2009. ...
Can we do this? - Georgia Climate Change Summit 2008
Can we do this? - Georgia Climate Change Summit 2008

... • Even if we stopped emitting CO2 today, warming would continue for ~ 30 years • However it is not too late avoid dangerous, irreversible climate change ...
- Wiley Online Library
- Wiley Online Library

... Received 28 January 2009; revised 10 March 2009; accepted 19 March 2009; published 14 April 2009. ...
rules based system
rules based system

... from 280 ppm (1860) to 400 ppm (2013) – the highest concentration since 800 000 years ...
Global climate change and Illinois.
Global climate change and Illinois.

... amounts of the gas to grow. Without them, CO2 remains in the atmosphere. Methane, which accounts for 18 percent of the greenhouse gases, is generated by landfills, wetlands, animals, decaying plants, and underwater bacteria such as in rice paddies. Other major contributors to the greenhouse effect a ...
Climate Access Roundtable Friday, April 11, 2014
Climate Access Roundtable Friday, April 11, 2014

... • Both reports assess existing science and involve extensive input from the scientific community, as well as input from NGOs and leaders in business and industry. Similarities in findings (based on the 2013 Draft NCA) include: – Climate change is occurring now, and it is occurring everywhere. – Clim ...
Minority Report
Minority Report

... Expanding the Radiative Forcing Concept Despite all these advantages, the traditional global mean TOA radiative forcing concept has some important limitations, which have come increasingly to light over the past decade. The concept is inadequate for some forcing agents, such as absorbing aerosols a ...
Modelling El Niño
Modelling El Niño

... simulated change in climate variability that can be used to assess climate feedbacks at play in future climate projections”. A number of research groups have attempted to model changes that will occur to the amplitude and frequency of the El Niño cycle as a response to climate change. However, to da ...
hamlet_harc_oct_2003 - UW Hydro
hamlet_harc_oct_2003 - UW Hydro

... Research on the capacity of existing institutions identified important research needs and fundamentally altered the CIG’s strategy for education and outreach. CIG Partnerships with regional stakeholders has been a very productive avenue in the context of creating linkages between academia and manage ...
The Effect of Greenhouse Gases on Earth`s Temperature
The Effect of Greenhouse Gases on Earth`s Temperature

... rates of increase are very unusual-levels of all three gases were more or less constant for thousands of years before the industrial revolution, but are higher today than they have been of hundreds of thousands of years (Houghton, 1997). The impact these gases have on climate varies, depending on th ...
Diapositiva 1
Diapositiva 1

... five separate bi-decadal periods, according to the legend of top right corner, shows the temporal change of heat wave characteristics. This distribution have became longer tailed with time. The number of events of the maximum length lasting 5 days could increase from 3 to 24 over 100 years (from 195 ...
Climate Change Special Interest Group 2nd November 2016 The
Climate Change Special Interest Group 2nd November 2016 The

An Introduction to Sustainability
An Introduction to Sustainability

... • Over the last few hundred years, humans have been capturing ancient sunlight and using it to power our lives in the form of fossil fuels. ...
Diapositiva 1 - ISEAL Alliance
Diapositiva 1 - ISEAL Alliance

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UEB Sample 3 PDF file
UEB Sample 3 PDF file

... resilience of the Great Barrier Reef to survive the damaging impacts of global warming. Carbon dioxide emissions, caused by the burning of dirty fossil fuels like coal, oil, and gas, build up in the atmosphere, blanket the Earth and trap in heat, causing global warming. Electricity production is res ...
Christian Writings on Climate Change
Christian Writings on Climate Change

... • We commit to an ecological lifestyle, politics and praxis as people of hope and commitment. • For the sake of future generations, we need to ...
Das Klimaproblem umfasst verschiedenste Aspekte
Das Klimaproblem umfasst verschiedenste Aspekte

... in particular as a response to increased levels of greenhouse gas concentrations. If this comparison yields favourable results – that is, the characteristics of recent change are consistent with the changes excited in a climate model when greenhouse gas concentrations are increased – then we “attrib ...
HOMEWORK 4
HOMEWORK 4

... Qu. 3) Former Vice-President of the U.S.A., Dan Quayle, said, “Mars is essentially in the same orbit. Mars is somewhat the same distance from the Sun, which is very important. We have seen pictures where there are canals, we believe, and water. If there is water that means there is oxygen. If there ...
Poster - Hans von Storch
Poster - Hans von Storch

... conditions. Atmospheric factors are relatively less important than emission changes. In the narrow coastal zone, where climate change and land uplift act together plant and animal communities had to adapt to changing environment conditions. Climate change is a compounding factor to major drivers of ...
CLIMATE CHANGE 2001: IMPACTS, ADAPTATION, AND
CLIMATE CHANGE 2001: IMPACTS, ADAPTATION, AND

... many interactions of climate change with other stresses on the environment and human populations, as well as linkages between climate change and sustainable development, are increasingly emphasized in recent research and preliminary insights from these important efforts are reflected in the report. ...
Update on the International Context, IPCC 2100 goal, and road to
Update on the International Context, IPCC 2100 goal, and road to

... PANEL ON CLIMATE CHANGE (IPCC) ...
Global Climate Change: Is International Agreement Possible?
Global Climate Change: Is International Agreement Possible?

... B) The science part of the picture C) The political science/international studies part of the picture (including definition of key terms) Weeks 2 and 3 (9/8, 9/15) – The Science of Climate Change A) General definitions a) Climate (as opposed to weather) b) Climate change B) The atmosphere, planetary ...
Global Warming Skeptics` Arguments
Global Warming Skeptics` Arguments

... Anti-global warming skeptics say the placement of some weather stations in urban areas may produce inaccurate measurements. According to them, the data are being corrupted by the urban heat island, an effect produced by cities' transportation, large amounts of heat-absorbing asphalt, and high concen ...
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Attribution of recent climate change



Attribution of recent climate change is the effort to scientifically ascertain mechanisms responsible for recent changes observed in the Earth's climate, commonly known as 'global warming'. The effort has focused on changes observed during the period of instrumental temperature record, when records are most reliable; particularly in the last 50 years, when human activity has grown fastest and observations of the troposphere have become available. The dominant mechanisms (to which recent climate change has been attributed) are anthropogenic, i.e., the result of human activity. They are: increasing atmospheric concentrations of greenhouse gases global changes to land surface, such as deforestation increasing atmospheric concentrations of aerosols.There are also natural mechanisms for variation including climate oscillations, changes in solar activity, and volcanic activity.According to the Intergovernmental Panel on Climate Change (IPCC), it is ""extremely likely"" that human influence was the dominant cause of global warming between 1951 and 2010. The IPCC defines ""extremely likely"" as indicating a probability of 95 to 100%, based on an expert assessment of all the available evidence.Multiple lines of evidence support attribution of recent climate change to human activities: A basic physical understanding of the climate system: greenhouse gas concentrations have increased and their warming properties are well-established. Historical estimates of past climate changes suggest that the recent changes in global surface temperature are unusual. Computer-based climate models are unable to replicate the observed warming unless human greenhouse gas emissions are included. Natural forces alone (such as solar and volcanic activity) cannot explain the observed warming.The IPCC's attribution of recent global warming to human activities is a view shared by most scientists, and is also supported by 196 other scientific organizations worldwide (see also: scientific opinion on climate change).
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