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Science of climate change
... The earth has been warmer in the recent past. Computer models are not reliable. The atmosphere is not behaving as models would predict. Climate is mainly influenced by the sun. A carbon dioxide rise has always come after a temperature increase not before. 8. Long-term data on hurricanes and arctic i ...
... The earth has been warmer in the recent past. Computer models are not reliable. The atmosphere is not behaving as models would predict. Climate is mainly influenced by the sun. A carbon dioxide rise has always come after a temperature increase not before. 8. Long-term data on hurricanes and arctic i ...
2009-08-05-presentation
... The Intergovernmental Panel on Climate Change (IPCC) What do the world’s best 2,500 atmospheric scientists say? ...
... The Intergovernmental Panel on Climate Change (IPCC) What do the world’s best 2,500 atmospheric scientists say? ...
Air: Climate
... • Analyze human contributions to global climate change and what effects our modifications are having on physical and biological systems • Briefly discuss policy options for responding to the threats of global climate change • Summarize the structure and composition of the atmosphere • Explain some b ...
... • Analyze human contributions to global climate change and what effects our modifications are having on physical and biological systems • Briefly discuss policy options for responding to the threats of global climate change • Summarize the structure and composition of the atmosphere • Explain some b ...
Economic implications of projected changes to tuna
... changing due to human activities? • Theory • Modelling • Evidence: instrumental measurements changes in the physical world changes in the biological world paleoclimate archives The climate system appears to be changing faster than earlier thought likely Steffen 2009 ...
... changing due to human activities? • Theory • Modelling • Evidence: instrumental measurements changes in the physical world changes in the biological world paleoclimate archives The climate system appears to be changing faster than earlier thought likely Steffen 2009 ...
Transcript
... making simple fixes like porous pavements, Hurricane Sandy would have caused much less damage. In the long run, the world needs to cut carbon dioxide because it causes global warming. But if the main effort to cut emissions is through subsidies for chic renewables like wind and solar power, virtuall ...
... making simple fixes like porous pavements, Hurricane Sandy would have caused much less damage. In the long run, the world needs to cut carbon dioxide because it causes global warming. But if the main effort to cut emissions is through subsidies for chic renewables like wind and solar power, virtuall ...
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... have been done and to develop strategies for future work. Sustained observations allow scientists to detect climatic spatial patterns. For example, the figure opposite shows interdecadal change in land and sea surface temperatures. This figure is taken from the 1996 Intergovernmental Panel on Climate ...
... have been done and to develop strategies for future work. Sustained observations allow scientists to detect climatic spatial patterns. For example, the figure opposite shows interdecadal change in land and sea surface temperatures. This figure is taken from the 1996 Intergovernmental Panel on Climate ...
The Himalayan Blunder
... The governments of India, Pakistan, Nepal and Bhutan are planning to, transform the Himalayan rivers into the powerhouse of South Asia by building hundreds of mega-dams to generate electricity. However, the possible impact of climate change will jeopardize the viability of the hydropower projects as ...
... The governments of India, Pakistan, Nepal and Bhutan are planning to, transform the Himalayan rivers into the powerhouse of South Asia by building hundreds of mega-dams to generate electricity. However, the possible impact of climate change will jeopardize the viability of the hydropower projects as ...
Instructor Notes
... Students will have taken at least one other Earth Science course as a prerequisite. Prior to this activity, part of which will be completed in class and part as an assignment, students will have learned about current climate classification, examined paleoclimate records to understand natural climate ...
... Students will have taken at least one other Earth Science course as a prerequisite. Prior to this activity, part of which will be completed in class and part as an assignment, students will have learned about current climate classification, examined paleoclimate records to understand natural climate ...
The Climate of the Central North American Grassland
... – “Thus the observed increase could be largely due to this natural variability: alternatively this variability and other human factors could have offset a still larger human-induced greenhouse warming.” ...
... – “Thus the observed increase could be largely due to this natural variability: alternatively this variability and other human factors could have offset a still larger human-induced greenhouse warming.” ...
its
... • 20 emitted by ground • 102 emitted by oceans • 88 emitted from clouds • 130 emitted from greenhouse gases in the atmosphere • 340 in = 340 out ...
... • 20 emitted by ground • 102 emitted by oceans • 88 emitted from clouds • 130 emitted from greenhouse gases in the atmosphere • 340 in = 340 out ...
Lecture #1
... days to months with lingering affects of about 1 year • The ocean responds on time scales of 10’s of years to even 100 years • This leads to a large natural variability of the climate system and GCMs are unable to represent or predict this variability well ...
... days to months with lingering affects of about 1 year • The ocean responds on time scales of 10’s of years to even 100 years • This leads to a large natural variability of the climate system and GCMs are unable to represent or predict this variability well ...
The Climate Change Controversy
... I must also stress that carbon dioxide is the most important cause of the growth of all vegetation on our planet. It is absorbed by green plants and then synthesized into their organic components. There are biological models, which imply that marginal increase of carbon dioxide in the atmosphere sho ...
... I must also stress that carbon dioxide is the most important cause of the growth of all vegetation on our planet. It is absorbed by green plants and then synthesized into their organic components. There are biological models, which imply that marginal increase of carbon dioxide in the atmosphere sho ...
Carbon tax could alter course of climate change
... scientists concur that human activity, led by the use of fossil fuels, has been the main cause of rising temperatures in recent decades. “There is a strong scientific agreement about the cause of ...
... scientists concur that human activity, led by the use of fossil fuels, has been the main cause of rising temperatures in recent decades. “There is a strong scientific agreement about the cause of ...
Here - Stanford University
... National Academies, 2001 Greenhouse gases are accumulating in Earth's atmosphere as a result of human activities, causing surface air temperatures and subsurface ocean temperatures to rise. Temperatures are, in fact, rising. The changes observed over the last several decades are likely mostly due t ...
... National Academies, 2001 Greenhouse gases are accumulating in Earth's atmosphere as a result of human activities, causing surface air temperatures and subsurface ocean temperatures to rise. Temperatures are, in fact, rising. The changes observed over the last several decades are likely mostly due t ...
Foreword by R.K. Pachauri, Chair of the IPCC
... in the atmosphere at a level that would prevent dangerous anthropogenic interference with Earth’s climate system. Article 2 of the treaty notes that such a level should be achieved within a time frame sufficient to allow ecosystems to adapt naturally to climate change, ensure that food production is ...
... in the atmosphere at a level that would prevent dangerous anthropogenic interference with Earth’s climate system. Article 2 of the treaty notes that such a level should be achieved within a time frame sufficient to allow ecosystems to adapt naturally to climate change, ensure that food production is ...
on Global Warming
... the global temperature continue to rise, human will be extinct in the future. Also, as the global temperature is increasing, icebergs are melting and the sea level is rising. Perhaps water will cover all the lands on earth, and the eco-system will be totally destroyed. If we don’t stop polluting our ...
... the global temperature continue to rise, human will be extinct in the future. Also, as the global temperature is increasing, icebergs are melting and the sea level is rising. Perhaps water will cover all the lands on earth, and the eco-system will be totally destroyed. If we don’t stop polluting our ...
Global emissions of greenhouse gases have been
... medium-to long-term greenhouse gases. Fossil fuels and land-use change have been the major sources of CO2, while energy and agriculture contribute about equally to emissions of CH4. N2O comes mainly from agriculture. Additional greenhouse gases not included in the figure are black carbon (soot), tro ...
... medium-to long-term greenhouse gases. Fossil fuels and land-use change have been the major sources of CO2, while energy and agriculture contribute about equally to emissions of CH4. N2O comes mainly from agriculture. Additional greenhouse gases not included in the figure are black carbon (soot), tro ...
Contributed White Papers:presented July27-28
... Link society and science Millennium ecosystem assessment Combine climate change projections with ecosystem response predictions • Make model output useful for ecosystem studies ...
... Link society and science Millennium ecosystem assessment Combine climate change projections with ecosystem response predictions • Make model output useful for ecosystem studies ...
Anthropogenic Climate Change: Scientific Fact or Faulty Assumption?
... Internal dynamics and external forcings: external forcings include natural phenomena (volcanic eruptions, solar variations) as well as human-induced changes in atmospheric composition ...
... Internal dynamics and external forcings: external forcings include natural phenomena (volcanic eruptions, solar variations) as well as human-induced changes in atmospheric composition ...
Chapter 2: The Physical Setting
... FIGURE 2.5 Increase in CO2 and Temperature These two graphs show the relationship between the rapid increase of CO2 in the atmosphere and the associated rise in average annual temperature for the world. The graphs go back 1,000 years and show that both CO2 and temperature have been relatively stable ...
... FIGURE 2.5 Increase in CO2 and Temperature These two graphs show the relationship between the rapid increase of CO2 in the atmosphere and the associated rise in average annual temperature for the world. The graphs go back 1,000 years and show that both CO2 and temperature have been relatively stable ...
Is Climate Really Predictable on 10-50 Year Time Scales?
... represent or predict this variability well ...
... represent or predict this variability well ...
CLIMATE CHANGE: EXAM REVIEW Short/Long Written Answers
... d. You are standing near a barbecue, and you feel the heat on your face. 23. List three greenhouse gases. Describe how the atmospheric concentration of these gases has changed over the last 200 years. 24. Define the term “anthropogenic greenhouse effect.” Why is it important to distinguish it from t ...
... d. You are standing near a barbecue, and you feel the heat on your face. 23. List three greenhouse gases. Describe how the atmospheric concentration of these gases has changed over the last 200 years. 24. Define the term “anthropogenic greenhouse effect.” Why is it important to distinguish it from t ...
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).