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ESM - Indian Institute of Tropical Meteorology
ESM - Indian Institute of Tropical Meteorology

... •IITM ESMv1: First version of IITM ESM has been successfully developed at CCCR, IITM by incorporating MOM4P1 (with ocean biogeochemistry) component in CFSv2. Major improvements are seen in IITM ESMv1 vis-à-vis CFSv2 : •Significant reduction of cold bias of global mean SST by ~0.8oC •ENSO & PDO are r ...
Chapter 3: The Global Warming Debate PDF
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... February 1985 was the last time global surface temperatures fell below the 20th-century average for a given month, meaning that no one younger than 30 has ever lived through a below-average month. The last full year that was colder than the 20th-century average was 1976.212 The cause of such warming ...
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... years before the mid-1990s points to the need for consistent hindcast skill to establish reliability of an operational decadal climate prediction system. Traditional free-running climate simulations that start in the mid-nineteenth century and proceed through the twentieth century with observed huma ...
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... Consider establishing a public carbon investment or program agency to facilitate program implementation, speed up CDM application, monitoring and verification procedures, clarify trading and ownership of CERs. Raise awareness in financial/banking sectors to increase lending to CDM projects Keep impr ...
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... change affecting ocean health and coastal and island peoples. Oceans cycle over 93% of carbon dioxide in the atmosphere, produce 50% of the oxygen we breathe, store 50% of all naturally sequestered carbon, and absorb 90% of the heat added to the global system in the past 200 years. Oceans, seas, and ...
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... In topics C6.3a – b learners will be looking into how the composition of the atmosphere has changed over time, from its first formation to the present day. This section, whilst largely stand-alone, will help with understanding of what processes can change the composition of the atmosphere. It is imp ...
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Dangerous Degrees - The Climate Institute

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... 2016, an invitation to participate was emailed to 2,033 broadcast meteorologists (Study #1), and a separate invitation was emailed to 6,738 AMS members (Study #2). (Note: In Study #2, we received 94 bounced emails for which no alternative email address could be located, resulting in a revised sampli ...
A 2016 National Survey of American Meteorological Society
A 2016 National Survey of American Meteorological Society

... Views on climate change: Nearly all AMS members (96%) think climate change – as defined by AMS – is happening, with almost 9 out of 10 (89%) stating that they are either ‘extremely’ or ‘very’ sure it is happening. Only 1% think climate change is not happening, and 3% say they don’t know. A large maj ...
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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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