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Competing roles of rising CO2 and climate change
Competing roles of rising CO2 and climate change

... database (Jung et al., 2006). SYNMAP is a database of modern vegetation distributions, including the effects of land-use change (large-scale conversion from forest to grass/crops). The vegetation fractions applied in this study are shown in Fig. 5. JULES has 5 vegetation classes, broadleaf and needl ...
Plans for the 2010 WMO/UNEP
Plans for the 2010 WMO/UNEP

... atmosphere (where they are emitted) as well as in the stratosphere where the ozone layer is • The Montreal Protocol is working as intended ...
Overview and significance of a 250 ka paleoclimate record from El
Overview and significance of a 250 ka paleoclimate record from El

... 2006; Overpeck et al. 2005). Large international programs (e.g., ACIA 2005; SEARCH 2005) have been launched to monitor this change and develop models for predicting the magnitude and regional repercussions of future environmental change. Without question, the polar regions play a major role in the g ...
The Politicization of Climate Change and Polarization in the American
The Politicization of Climate Change and Polarization in the American

... points in time, often with limited samples. Replicating these analyses with 10 years of data from nationally representative samples allows us to determine the generalizability of these observed patterns. Widespread evidence of such moderating effects challenge the conventional wisdom, embodied in Al ...
Development of a metamodel tool for regional integrated climate
Development of a metamodel tool for regional integrated climate

... stakeholders across the agricultural, hydrological, biodiversity and coastal sectors. The Regional Impact Simulator contains the:  Metamodels – a range of calibrated and validated metamodels simulating fluvial and coastal flooding; rural landuse change and agricultural production; water resources, ...
Climate Change News 13 July 10
Climate Change News 13 July 10

... The guide was authored by a team at French environmental consultants ONF International and funded by UN Environment Programme’s Department of Technology, Industry and Economics, the UNEP Risoe Centre, the French Development Agency (AFD), and the World Bank’s BioCarbon Fund. It runs through the types ...
save
save

... balances the amount of solar radiation that reaches the Earth’s surface from the sun. Now indeed we can see by how much the greenhouse gases will warm the planet. If we know by how much the CO2 traps infrared radiation, we also know by how much the Earth must rise in temperature to restore a net ene ...
Document
Document

... 3 How well are circulation types represented in climate models? The model chains are generally able to capture the frequency of circulation types for the reference period 1980–2009 over the Alpine region. The largest deviations between re-analysis and model data are found during winter as shown for ...
Water management for wheat grown in sandy soil under climate
Water management for wheat grown in sandy soil under climate

... treatments, in addition to farmer irrigation were tested. Two climate change scenarios obtained from Hadley climate change model were incorporated in CropSyst model to assess wheat yield responses to fertigation regimes under these scenarios. The results showed that the highest yield and the highest ...
PDF
PDF

... competition for light and nutrients increases. However, if felling occurred, one would expect a negative flux of carbon for several years, before re-growth of the second rotation began to take up significant quantities of carbon. Anthropogenic climate change: Climate change caused by increase in the ...
Climate Change and Migration - The German Marshall Fund of the
Climate Change and Migration - The German Marshall Fund of the

... The Copenhagen Accords adopted in December 2009 committed the international community to enhanced action and international cooperation to reduce vulnerability and build resilience in developing countries to meet the challenges of climate change. Perhaps the most striking finding of the study team co ...
7.6 adaptation
7.6 adaptation

... The above discussion of non-climate drivers reflects the critical role of the economy, from local to global scales, in driving agricultural systems and practices. In addition to these primary economic drivers, a range of key environmental drivers including volcanic activity, earthquakes and tsunamis ...
1 Top-down and Bottom-up Approaches in Climate Change and
1 Top-down and Bottom-up Approaches in Climate Change and

... plausible way to reduce GHG emissions (which is the whole purpose of the exercise) is to involve major GHG emitters, irrespective of their GDP. International law is fragmented. The case of international trade law is a good illustration of the fact that international law, generally speaking, operates ...
Programme Booklet
Programme Booklet

... These lectures will review various aspects of climate. We begin with a description of various examples of past climate with descriptions of the likely physical causes. These will include the cycles of major glaciation of the past 2 million years, the Eocene warm period, and the temperate climate of ...
WtrShdMgmt20100421_316final
WtrShdMgmt20100421_316final

... increased corn production to meet projected ethanol demands. A baseline model was developed to represent current conditions as of 2005, which was used to conduct sensitivity analysis on a number of important meteorological and management related factors. The goal of this effort was to further unders ...
Climate sensitivity, sea level and atmospheric carbon dioxide
Climate sensitivity, sea level and atmospheric carbon dioxide

... energy balance [1,2], is the human-made increase in atmospheric greenhouse gases (GHGs), especially CO2 from the burning of fossil fuels. Earth’s response to climate forcings is slowed by the inertia of the global ocean and the great ice sheets on Greenland and Antarctica, which require centuries, m ...
Assessing pricing assumptions for weather index insurance in a changing climate
Assessing pricing assumptions for weather index insurance in a changing climate

... gridded observed daily rainfall data is also available from the APHRODITE project (Yatagai et al., 2008, 2009). Secondly, the rain-fed agricultural sector in India is largely dependent on the timing and magnitude of the summer monsoon rains (Gadgil and Rupa Kumar, 2006) and Kolhapur is located at th ...
An argument for fossil fuel divestment.pdf
An argument for fossil fuel divestment.pdf

... Climate science has demonstrated with overwhelming consensus that if we continue business as usual, our planet is heading toward a climate catastrophe of unprecedented and virtually unimaginable proportions. To avoid the worst scenarios, we must take immediate and substantial changes.1 The Intergove ...
PDF, 176 KB - Global Change System for Analysis, Research and
PDF, 176 KB - Global Change System for Analysis, Research and

... surveys and field reports. While composite indices and other methods of aggregation or disaggregation capture the multi-dimensionality of vulnerability in a comprehensible form, they are still unable to capture the direct linkages between local, national, and global processes (Dow 1992; Wilbanks and ...
1/ Format an contents of the « National overview…
1/ Format an contents of the « National overview…

... Mediterranean coastline are already evident, reflected by an increased mortality of some species, changes in species reproductive biology during warm years, and an increase of exotic species arrivals. The projected climate change under IPCC scenarios of greenhouse gas emissions, together with foreca ...
Effect of climate and landcover change
Effect of climate and landcover change

... Stream discharge of a watershed is affected and altered by climate and landcover changes. These effects vary depending on the magnitude and interaction of the changes, and need to be understood so that local water resource availability can be evaluated and socioeconomic development within a watershe ...
Questions for discussion ETS shelved What does the BtN story
Questions for discussion ETS shelved What does the BtN story

... opponents said he was using his position to make money for his family. So in September 2006 the Thai military came and threw him out. Later a court found him guilty of corruption but the red-shirts reckon the army had no right to remove an elected government. Ever since then Thai politics have been ...
Applying Risk Informed Decision-Making Framework for Climate
Applying Risk Informed Decision-Making Framework for Climate

... Appendix D – “Decision Framework” Workshop Meeting Report ..............................................D-1 Appendix E – “Prioritizing Actions” Workshop Meeting Report ................................................. E-1 ...
Brusch IV et.al. 2015 - Organization for Tropical Studies
Brusch IV et.al. 2015 - Organization for Tropical Studies

... Climate change is one of the greatest threats to terrestrial biodiversity in the twenty-first century (Intergovernmental Panel on Climate Change 2014). Increasing average temperatures could contribute to the extinction of 18 % of all species by 2050 (Thomas et al. 2004), and almost 40 % of all lizar ...
Making Climate Data Relevant to Decision Making: The important
Making Climate Data Relevant to Decision Making: The important

... Throughout the world, there is a major need for climate change science to inform on-the-ground adaptation planning. However, a major gap exists between the well-developed state of climate science and decision-makers preparing for a future climate. There is no shortage of scientific data that has bee ...
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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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