lecture_20
... from soil and vegetation to the atmosphere; chemical and biological processes; solar variability and others. Although researchers attempt to include as many processes as possible, simplifications of the actual climate system are inevitable because of the constraints of available computer power and l ...
... from soil and vegetation to the atmosphere; chemical and biological processes; solar variability and others. Although researchers attempt to include as many processes as possible, simplifications of the actual climate system are inevitable because of the constraints of available computer power and l ...
Understanding Global Climate Change
... HE CLIMATE OF A REGION is defined as the average weather over an extended period, at least in reference to the average human lifespan. It is often measured with respect to variations in temperature and precipitation over interannual to millennial time scales. The world’s climate is driven (or “force ...
... HE CLIMATE OF A REGION is defined as the average weather over an extended period, at least in reference to the average human lifespan. It is often measured with respect to variations in temperature and precipitation over interannual to millennial time scales. The world’s climate is driven (or “force ...
Evidence for climate change - University at Albany Atmospheric
... • Globally averaged surface temperature: linear trend 1880-2012 is 0.85K (confidence range [0.65-1.06K], units are kelvin)* • Virtually certain that the troposphere has warmed since mid-20th century, but highest confidence is limited to the well observed extratropical Northern Hemisphere • Precipita ...
... • Globally averaged surface temperature: linear trend 1880-2012 is 0.85K (confidence range [0.65-1.06K], units are kelvin)* • Virtually certain that the troposphere has warmed since mid-20th century, but highest confidence is limited to the well observed extratropical Northern Hemisphere • Precipita ...
NIR-15-12 - Global Warming: Canada`s Melting Glaciers
... Isolated oceanic islands, coastal cities, towns and villages would find themselves underwater. While the process of melting would take thousands of years (10 000 by some estimates), the direct cause of the melting would be the fossil fuels we burn today because carbon dioxide remains in the atmosphe ...
... Isolated oceanic islands, coastal cities, towns and villages would find themselves underwater. While the process of melting would take thousands of years (10 000 by some estimates), the direct cause of the melting would be the fossil fuels we burn today because carbon dioxide remains in the atmosphe ...
Climate Change and Its Impacts - National Center for Policy Analysis
... evidence contradicts assertions that substantial global warming is likely to occur soon and that the predicted warming will harm the Earth’s biosphere. The Earth’s climate began a warming trend after the “Little Ice Age” ended in the mid-1800s, long before global industrial development led to substa ...
... evidence contradicts assertions that substantial global warming is likely to occur soon and that the predicted warming will harm the Earth’s biosphere. The Earth’s climate began a warming trend after the “Little Ice Age” ended in the mid-1800s, long before global industrial development led to substa ...
Short-lived pollutants in the Arctic: their climate impact and possible
... dropped to the lowest levels observed since satellite measurements began in 1979, resulting in the first recorded complete opening of the Northwest Passage (NSIDC, 2007). Impacts of ice loss include reduction of the Earth’s albedo, a positive feedback which leads to further warming. The earlier onse ...
... dropped to the lowest levels observed since satellite measurements began in 1979, resulting in the first recorded complete opening of the Northwest Passage (NSIDC, 2007). Impacts of ice loss include reduction of the Earth’s albedo, a positive feedback which leads to further warming. The earlier onse ...
Arctic Climate System Study (ACSYS)/ Climate and Cryosphere
... • Enhance the observation & monitoring of the cryosphere in support of process studies, model evaluation and change detection • Improve understanding of the physical processes and feedbacks through which the cryosphere interacts within the climate system • Improve the representation of cryospheric p ...
... • Enhance the observation & monitoring of the cryosphere in support of process studies, model evaluation and change detection • Improve understanding of the physical processes and feedbacks through which the cryosphere interacts within the climate system • Improve the representation of cryospheric p ...
There is an unknown but small probability that the West
... Atlantic Sea Level Rise: Adaptation to Imaginable Worst Case Climate Change There is an unknown but small probability that the West-Antarctic Ice Sheet (WAIS) would collapse because of anthropogenic climate change. The probability is greater than zero, as the WAIS has disappeared in the geological p ...
... Atlantic Sea Level Rise: Adaptation to Imaginable Worst Case Climate Change There is an unknown but small probability that the West-Antarctic Ice Sheet (WAIS) would collapse because of anthropogenic climate change. The probability is greater than zero, as the WAIS has disappeared in the geological p ...
The Earth • Policy on absences • Processes that shape earth
... temperatures, which respond to longlong-term average conditions at the surface, are rising ¾ Ocean temperatures are rising, at the surface and through the upper kilometer of ocean depth ¾ Sea ice cover is decreasing, particularly in the Arctic ¾ Mountain glaciers and the Greenland Ice Sheet are melt ...
... temperatures, which respond to longlong-term average conditions at the surface, are rising ¾ Ocean temperatures are rising, at the surface and through the upper kilometer of ocean depth ¾ Sea ice cover is decreasing, particularly in the Arctic ¾ Mountain glaciers and the Greenland Ice Sheet are melt ...
Sea Ice–Albedo Feedback and Nonlinear Arctic Climate Change
... not respond to changes in shortwave absorption. The region north of 70°N receives more energy from the atmospheric transport than it absorbs from the Sun, and together they make up nearly all of the OLR; the surface flux is small [Serreze and Barry, 2005]. Since atmospheric heat transport is a big p ...
... not respond to changes in shortwave absorption. The region north of 70°N receives more energy from the atmospheric transport than it absorbs from the Sun, and together they make up nearly all of the OLR; the surface flux is small [Serreze and Barry, 2005]. Since atmospheric heat transport is a big p ...
Climate Change: The Move to Action
... Uncertainty Discussion • How uncertain do you think climate science is? • What seems most uncertain to you? • Is this uncertainty small enough to motivate action, or is it so large that action is risky? • Is better communication of uncertainty what stands between us and doing something? • Is reduci ...
... Uncertainty Discussion • How uncertain do you think climate science is? • What seems most uncertain to you? • Is this uncertainty small enough to motivate action, or is it so large that action is risky? • Is better communication of uncertainty what stands between us and doing something? • Is reduci ...
Human Induced Climate Change: The IPCC Fourth Assessment
... The AR4 has also found some improvement in understanding of the sensitivity of the climate system to forcing (see Box 1 above). Since the First Assessment Report in 1990 the IPCC had estimated the climate sensitivity, dT2x, to be in the range of 1.54.5°C, with a best estimate of 2.5°C10. In the AR4 ...
... The AR4 has also found some improvement in understanding of the sensitivity of the climate system to forcing (see Box 1 above). Since the First Assessment Report in 1990 the IPCC had estimated the climate sensitivity, dT2x, to be in the range of 1.54.5°C, with a best estimate of 2.5°C10. In the AR4 ...
(202) 224-4159 Kerry: On Eve of Rio+20, An Honest Assessment of C
... Looking back, it’s not hard to understand why the final agreement got sidetracked in the Senate. After all, developing countries were excluded from the treaty’s reduction targets, even though it had become clear that China and India were significant enough as industrial powers that to exempt them en ...
... Looking back, it’s not hard to understand why the final agreement got sidetracked in the Senate. After all, developing countries were excluded from the treaty’s reduction targets, even though it had become clear that China and India were significant enough as industrial powers that to exempt them en ...
Economic Opportunities from a Changing Climate
... on the northern margins of western agriculture, such as the Peace River region (Bjerga 2012). These temperature changes are, in turn, expected to have major ecological impacts. The US space agency NASA has identified the Prairies as one of the world’s climate change hot zones, marked by profound ch ...
... on the northern margins of western agriculture, such as the Peace River region (Bjerga 2012). These temperature changes are, in turn, expected to have major ecological impacts. The US space agency NASA has identified the Prairies as one of the world’s climate change hot zones, marked by profound ch ...
Sea Level Rise
... streams and aquifers. Therefore, it is important to study records of how sea level has been changing. Sea level has fluctuated dramatically in geologic times. It was 2-6 m above the present level during the last interglacial period, 125,000 years ago, but 120 m below present during the last Ice Age, ...
... streams and aquifers. Therefore, it is important to study records of how sea level has been changing. Sea level has fluctuated dramatically in geologic times. It was 2-6 m above the present level during the last interglacial period, 125,000 years ago, but 120 m below present during the last Ice Age, ...
F1.1 Shrub tundra
... In Finnmark, the northern region of Norway, the arctic belt is restricted to the lower altitudes at sea level. Dominant dwarf shrubs here are Empetrum hermaphroditum, accompanied by Salix herbacea , Vaccinium myrtilus, Vaccinium uliginosum, Juncus trifidus, Festuca vivipara and high abundance of mos ...
... In Finnmark, the northern region of Norway, the arctic belt is restricted to the lower altitudes at sea level. Dominant dwarf shrubs here are Empetrum hermaphroditum, accompanied by Salix herbacea , Vaccinium myrtilus, Vaccinium uliginosum, Juncus trifidus, Festuca vivipara and high abundance of mos ...
GW-UUUS-2010-08
... #1: Himalayan glaciers: In a regional chapter on Asia in Vol 2, written by authors from the region, it wrongly stated that 80% of Himalayan glacier area would very likely be gone by 2035. This is not the proper IPCC projection of future glacier decline, which is found in Volume 1 (Ch4) of the report ...
... #1: Himalayan glaciers: In a regional chapter on Asia in Vol 2, written by authors from the region, it wrongly stated that 80% of Himalayan glacier area would very likely be gone by 2035. This is not the proper IPCC projection of future glacier decline, which is found in Volume 1 (Ch4) of the report ...
What is causing rapid change in the Arctic at the moment?
... hence deposited on snow and ice, could decrease albedo and speed up melting. A study led by researchers at the University of Leeds brought together Arctic shipping inventories for 2004, projected inventories for 2050 and a global aerosol model and found that 2050 emissions will contribute less than ...
... hence deposited on snow and ice, could decrease albedo and speed up melting. A study led by researchers at the University of Leeds brought together Arctic shipping inventories for 2004, projected inventories for 2050 and a global aerosol model and found that 2050 emissions will contribute less than ...
Abrupt climate changes: Oceans, Ice, and Us - NAS
... more than 10% to pace ice ages, although mostly by moving sunshine to other latitudes on the planet rather than by changing the total sunshine received, with the global response of the ice ages caused by changes in carbon dioxide and other greenhouse gases. And over millions of years or longer, the ...
... more than 10% to pace ice ages, although mostly by moving sunshine to other latitudes on the planet rather than by changing the total sunshine received, with the global response of the ice ages caused by changes in carbon dioxide and other greenhouse gases. And over millions of years or longer, the ...
(ANTA602) Antarctic sea-‐ice extent in global coupled climate models
... Climate signals can also be masked or exaggerated by issues within source data, or by the processing methods utilised. Screen (2011) cautions that discontinuity in remotely sensed observation data of sea i ...
... Climate signals can also be masked or exaggerated by issues within source data, or by the processing methods utilised. Screen (2011) cautions that discontinuity in remotely sensed observation data of sea i ...
Val Swail
... Blue and red dots indicate trends significant at the 5% confidence level. Crosses denote nonsignificant trends. ...
... Blue and red dots indicate trends significant at the 5% confidence level. Crosses denote nonsignificant trends. ...