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Public Perceptions of Climate Change and Security.
Public Perceptions of Climate Change and Security.

... The Center compiled a short series of questions concerning the connections between climate change and security, available in full at Appendix A. Our goal was to begin quantifying both public familiarity with the idea of climate change as a security threat, and the potential impact that increased or ...
Interactive comment on “Was the Little Ice Age more or less El Niño
Interactive comment on “Was the Little Ice Age more or less El Niño

... error >=60 years is somewhat arbitrary but chosen as it is twice the averaging period of 30 years. We apologise if it was not clear how this dating error was then determined for individual proxies. We took the dating error from the original publications where it was reported, and else referred to ag ...
from the  editor
from the editor

... Atmospheric concentrations of carbon dioxide, methane, and other greenhouse gases are increasing. The well-known greenhouse effect caused by these gases traps solar energy, warming Earth’s atmosphere, land, and oceans and melting its ice. Thermal expansion of ocean water and liquid from melting land ...
Priority Research Questions for the Environment Agency and other
Priority Research Questions for the Environment Agency and other

... Estimate future emissions from English peatlands using climate/land use scenarios 3. Ascertain if the current Land Use, Land-Use Change and Forestry (LULUCF) methodology used in the UK GHG Inventory is correctly estimating GHG emissions and removals from upland peat/organic soils. ...
Global warming under old and new scenarios using IPCC climate
Global warming under old and new scenarios using IPCC climate

... then re-sample the joint distribution of climate model parameters such that historically observed ocean’s surface and land’s air temperatures in both hemispheres8 , as well as ocean heat uptake observations9 , are matched. The resulting model set-up closely reflects the uncertainties in radiative fo ...
Working Paper WP 2015-06 April 2015
Working Paper WP 2015-06 April 2015

... When the scarcity signals work well relative to each other, they induce shifts in supply towards commodities which are scarce, and shifts in demand away from these commodities. If the system of markets and prices works as it is meant to in economics text books, then it will achieve an outcome that i ...
Link between land-ocean warming contrast and surface relative
Link between land-ocean warming contrast and surface relative

... calculation of the multimodel median. Absolute rather than fractional changes in relative humidity are shown in Figure 1b. equivalent potential temperature we will later use (which does not consider the ice phase of water), we approximately adjust the relative humidities to be always with respect to ...
Read the Backgrounder on why Fossil Fuel
Read the Backgrounder on why Fossil Fuel

... in a Lloyds report, "the world cannot insure its way out of climate change." In fact, some insurance companies are already changing their policies, reducing coverage to deal with the increasing claims. Similar concerns for risks posed by climate change to the global economy have been expressed by t ...
Global Warming - Department of Geology UPRM
Global Warming - Department of Geology UPRM

... These gases let in light but keep heat from escaping, like the glass walls of a greenhouse.First, sunlight shines onto the Earth's surface, where it is absorbed and then radiates back into the atmosphere as heat. In the atmosphere, “greenhouse” gases trap some of this heat, and the rest escapes into ...
Transcript
Transcript

... special forms for them to fill in with all their data. Maury also introduced standardisation to air temperature measurements on land. That’s why our 0.85 degrees Celsius figure is measured from 1880, it’s the date from which the temperature data is generally well standardised. But despite Maury’s ef ...
Link between landocean warming contrast and surface relative
Link between landocean warming contrast and surface relative

... calculation of the multimodel median. Absolute rather than fractional changes in relative humidity are shown in Figure 1b. equivalent potential temperature we will later use (which does not consider the ice phase of water), we approximately adjust the relative humidities to be always with respect to ...
The global-scale impacts of climate change on water resources and
The global-scale impacts of climate change on water resources and

... there is a difference in the absolute numbers of people exposed to increased water resources stress or increased river flood frequency between the five SSPs. With the ‘middle-of-theroad’ SSP2, climate change by 2050 would increase exposure to water resources stress for between approximately 920 and ...
Tracking Earth`s Energy: From El Nin˜o to Global Warming
Tracking Earth`s Energy: From El Nin˜o to Global Warming

... lack the duration and stability required when addressing these questions. 3.2 Anthropogenic Climate Change The human influence on climate, arising mostly from the changing composition of the atmosphere (IPCC 2007), also affects energy flows. Increasing concentrations of carbon dioxide and other gree ...
Understanding Global Climate Change
Understanding Global Climate Change

... from variations in solar energy that reach the atmosphere and the surface. These variations occur in cycles, and the one most relevant to the human life span is the 11–12-year sunspot cycle. Much more influential on the Earth’s long-term climate are the orbital variations of the Earth, which at 22,0 ...
This article appeared in a journal published by - CREAF
This article appeared in a journal published by - CREAF

... zones nitrogen deposition has to be accounted for, not only with respect to the impact on water quality through increased nitrogen leaching where N deposition is high, but also in predictions of carbon sequestration in terrestrial ecosystems under future climatic conditions. Finally the results indi ...
1 AT A GLANCE Temperatures across the Rio Grande
1 AT A GLANCE Temperatures across the Rio Grande

... SMN forecasts use statistical models, based on similar years from history. The SMN forecasts give higher significance to the role of the Atlantic Ocean in the analogue years used, (2) NOAA predicts shifts in the probability of precipitation, whereas the SMN predicts precipitation amounts, and (3) NO ...
Local knowledge - Arctic Frontiers
Local knowledge - Arctic Frontiers

... represent specific environmental settings. Together these two fields contribute with a coupling between different trophic layers and benthic pelagic systems, as well as top down and bottom up control. Furthermore middens can work as archives of species that indicate climate change and glacier melt w ...
Guide One
Guide One

... The great advantage of having this Guide on-line only is that changes can be made at any time. David Terry June 2013 Copyright: BEACONS 2013 ...
NVCA Climate Change Strategy and Action Plan Milestone 1
NVCA Climate Change Strategy and Action Plan Milestone 1

... Reconstruction of past climates using ice core, tree rings and other datasets indicate it is very likely that in the Northern Hemisphere the 30 year period from 1983 to 2012 was the warmest in the past 800 years. Temperatures in the Northern Hemisphere have been climbing faster than the global avera ...
CCCI_Mongolia_Executive_Summary_20110411
CCCI_Mongolia_Executive_Summary_20110411

... Ulaanbaatar city. The district has 434,4 ha of territory with a residential area, where are modern built up apartments in the south part, and traditional Ger areas in the north, which has been newly settled since 2000, due to the mass migration from rural areas after consequent dzud disasters occur ...
Greenhouse Alliances – Responding to the Challenge of Climate
Greenhouse Alliances – Responding to the Challenge of Climate

... metre rise in sea level by 2100 and plan accordingly. Further, in accepting that there is doubt about the precise rise in sea level over such a time scale, it also recommends the adoption of ‘the precautionary principle’ where proposals should err on the side of conservatism. VCAT has already includ ...
77% 20% PIPA/KN 6/2004 - WorldPublicOpinion.org
77% 20% PIPA/KN 6/2004 - WorldPublicOpinion.org

... Business Costs and Emission Allowances STATEMENT: If this bill were to pass, each large company would be allowed to emit a limited amount of greenhouse gasses. A controversial aspect of the bill is that allows companies to buy and sell their allowances to each other. The idea is that it will cost s ...
2016-09-15-GEO-CRADLE Cyprus_Workshop + PM_Draft
2016-09-15-GEO-CRADLE Cyprus_Workshop + PM_Draft

... knowledge for long term strategic planning on adaptation and mitigation to climate change and air quality which are of high importance for the RoI. The RoI has been recognized by the Intergovernmental Panel on Climate Change (IPCC) as one of the most sensitive and vulnerable to climate change region ...
Economic Impacts Of Climate Change On Georgia
Economic Impacts Of Climate Change On Georgia

... Policymakers across the country are now seeking solutions to curb greenhouse gas emissions and to help us adapt to the impending impacts triggered by past emissions. The debate to date has primarily focused on the perceived costs of alternative solutions, yet there can also be significant costs of i ...
451kB - Surrey Research Insight Open Access
451kB - Surrey Research Insight Open Access

... posterity is not something to be done lightly. For one thing, there are conflicting needs at stake: not just between the nonhuman biosphere at large (if such a thing can indeed be imagined) and the human species in its entirety, but amongst diverse nonhuman and human populations of the world. For a ...
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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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