Global Ecology
... Concentration of CO2 and CH4 can be measured in tiny bubbles preserved in polar ice. ...
... Concentration of CO2 and CH4 can be measured in tiny bubbles preserved in polar ice. ...
Unit 6 Power Point Notes
... i. Are the increase in global temperatures natural? ii. In other words, can natural variations in temperature account for the increase in temperature that we see? iii. _____________________ Changes in the Sun’s radiance, El Nino and La Nina cycles, natural changes in greenhouse gas, and other atmosp ...
... i. Are the increase in global temperatures natural? ii. In other words, can natural variations in temperature account for the increase in temperature that we see? iii. _____________________ Changes in the Sun’s radiance, El Nino and La Nina cycles, natural changes in greenhouse gas, and other atmosp ...
National Survey of American Public Opinion on Climate Change
... reason that she believed temperatures on earth were increasing. In these cases and many others Americans turn first to the weather they experience as the key reason for their acceptance of global warming. Personal observations also play a significant role in leading individuals to say that global wa ...
... reason that she believed temperatures on earth were increasing. In these cases and many others Americans turn first to the weather they experience as the key reason for their acceptance of global warming. Personal observations also play a significant role in leading individuals to say that global wa ...
A Review of Environmental Books
... sidebars in Climate of Extremes are used ineffectively. Because the graphs seem integral to their argument, I tried to follow them, but the authors do not explain them or their significance well in the narrative. The most important graphics are found in the middle of the book; it appears the publish ...
... sidebars in Climate of Extremes are used ineffectively. Because the graphs seem integral to their argument, I tried to follow them, but the authors do not explain them or their significance well in the narrative. The most important graphics are found in the middle of the book; it appears the publish ...
Document
... Remember: we are not talking about local weather, we are talking about global climate. A rapid increase in the temperature of the troposphere during this century would give us little time to deal with its harmful effects. Many scientists fear a “tipping point” after which rapid/severe climate ...
... Remember: we are not talking about local weather, we are talking about global climate. A rapid increase in the temperature of the troposphere during this century would give us little time to deal with its harmful effects. Many scientists fear a “tipping point” after which rapid/severe climate ...
Phys. 102: Introduction to Astronomy
... “The IPCC does not carry out research nor does it monitor climate related data or other relevant parameters. It bases its assessment mainly on peer reviewed and published scientific/technical literature. Its role, organisation, participation and general procedures are laid down in the ‘Principles Go ...
... “The IPCC does not carry out research nor does it monitor climate related data or other relevant parameters. It bases its assessment mainly on peer reviewed and published scientific/technical literature. Its role, organisation, participation and general procedures are laid down in the ‘Principles Go ...
Lecture 18
... Models project increased variability increased flooding and increased droughts! Another problem: increased demand for water. ...
... Models project increased variability increased flooding and increased droughts! Another problem: increased demand for water. ...
Ozone Depletion and Global warming ppt angie
... Organization in Montreal. The Montreal Protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere--chlorofluorocarbons (CFCs), halons, carbon tetrachloride, and methyl chloroform--are to be phased out by 2000 (2005 for methyl chloroform). Scientific t ...
... Organization in Montreal. The Montreal Protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere--chlorofluorocarbons (CFCs), halons, carbon tetrachloride, and methyl chloroform--are to be phased out by 2000 (2005 for methyl chloroform). Scientific t ...
notes
... Countries have been meeting since 2009 to decide what will happen next http://unfccc.int/meetings/items/2654.php ...
... Countries have been meeting since 2009 to decide what will happen next http://unfccc.int/meetings/items/2654.php ...
June 15 - 17, 2009
... marine resources, 2) identify priority research areas where new developments could greatly increase present LMR prediction capabilities, and 3) stimulate the development of new and innovative approaches for studying climate change impacts on LMRs by promoting a greater shared understanding between c ...
... marine resources, 2) identify priority research areas where new developments could greatly increase present LMR prediction capabilities, and 3) stimulate the development of new and innovative approaches for studying climate change impacts on LMRs by promoting a greater shared understanding between c ...
Climate Change 2007: The Physical Science Basis
... Continued greenhouse gas emissions at or above current rates would cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century. ...
... Continued greenhouse gas emissions at or above current rates would cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century. ...
here - Hot Topic
... The early Eocene, around 50 million years ago, has long been recognised as a time of pronounced global warming. New Zealand was vastly different then, with a larger landmass, a different shape, and covered in lush forest. In a study that is to be published in the international scientific journal Geo ...
... The early Eocene, around 50 million years ago, has long been recognised as a time of pronounced global warming. New Zealand was vastly different then, with a larger landmass, a different shape, and covered in lush forest. In a study that is to be published in the international scientific journal Geo ...
Global Environmental Change
... years – Chacaltaya glacier, Andes Mountains, will disappear in 7-8 years (water supply for La Paz, ...
... years – Chacaltaya glacier, Andes Mountains, will disappear in 7-8 years (water supply for La Paz, ...
`Gaia` scientist James Lovelock: I was `alarmist` about climate change
... He said he still thought that climate change was happening, but that its effects would be felt farther in the future than he previously thought. “We will have global warming, but it’s been deferred a bit,” Lovelock said. 'I made a mistake' As “an independent and a loner,” he said he did not mind sa ...
... He said he still thought that climate change was happening, but that its effects would be felt farther in the future than he previously thought. “We will have global warming, but it’s been deferred a bit,” Lovelock said. 'I made a mistake' As “an independent and a loner,” he said he did not mind sa ...
UNFCCC Newsletter
... build up a more inclusive, green pattern of globalization. This includes turning developing country mitigation actions into something that both serves and boosts their long-term economic development goals. More... ...
... build up a more inclusive, green pattern of globalization. This includes turning developing country mitigation actions into something that both serves and boosts their long-term economic development goals. More... ...
climate models
... “Forcing” is produced by an external process, e.g. Changes in solar flux Volcanic eruptions Human actions A feedback is a response to temperature changes Example: Increased water vapor due to warming Anthropogenic increases in greenhouse gases are considered forcings Increases in greenhouse gase ...
... “Forcing” is produced by an external process, e.g. Changes in solar flux Volcanic eruptions Human actions A feedback is a response to temperature changes Example: Increased water vapor due to warming Anthropogenic increases in greenhouse gases are considered forcings Increases in greenhouse gase ...
Climate change - cause and consequences
... …stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system… • Kyoto target: - Annex 1 countries reduce emissions by 5% by 2008-12, compared to 1990 levels • EU target - Reduce emissions by 20% by 2020 ...
... …stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system… • Kyoto target: - Annex 1 countries reduce emissions by 5% by 2008-12, compared to 1990 levels • EU target - Reduce emissions by 20% by 2020 ...
anthropogenic climate change
... Recent climate • Do we have a theory about what caused recent climate changes? • Yes: The theory is that they are driven by anthropogenic activity (burning fossil fuels, deforestation, etc.) plus feedbacks. • IPCC 2007: “Most of the observed increase in global average temperatures since the mid-20t ...
... Recent climate • Do we have a theory about what caused recent climate changes? • Yes: The theory is that they are driven by anthropogenic activity (burning fossil fuels, deforestation, etc.) plus feedbacks. • IPCC 2007: “Most of the observed increase in global average temperatures since the mid-20t ...
Observations Necessary for Useful Global Climate Models
... much as 1000 years claimed by others. Further, for every fossil-fuel carbon dioxide molecule added to the atmosphere, the ocean soaks up about 50 such molecules within a decade. These observational facts mean that humans cannot cause the doomsday assumption of a “doubling of atmospheric carbon dioxi ...
... much as 1000 years claimed by others. Further, for every fossil-fuel carbon dioxide molecule added to the atmosphere, the ocean soaks up about 50 such molecules within a decade. These observational facts mean that humans cannot cause the doomsday assumption of a “doubling of atmospheric carbon dioxi ...
Climate Change: Science Issues
... • Whether natural variability explains some or most of modern climate changes • Whether the changes are harmful or not ...
... • Whether natural variability explains some or most of modern climate changes • Whether the changes are harmful or not ...
Global warming controversy
The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action should be taken to curb it, and if so what that action should be. In the scientific literature, there is a strong consensus that global surface temperatures have increased in recent decades and that the trend is caused primarily by human-induced emissions of greenhouse gases. No scientific body of national or international standing disagrees with this view, though a few organizations with members in extractive industries hold non-committal positions. Disputes over the key scientific facts of global warming are now more prevalent in the popular media than in the scientific literature, where such issues are treated as resolved, and more in the United States than globally.Political and popular debate concerning the existence and cause of climate change includes the reasons for the increase seen in the instrumental temperature record, whether the warming trend exceeds normal climatic variations, and whether human activities have contributed significantly to it. Scientists have resolved many of these questions decisively in favour of the view that the current warming trend exists and is ongoing, that human activity is the primary cause, and that it is without precedent in at least 2000 years. Disputes that also reflect scientific debate include estimates of how responsive the climate system might be to any given level of greenhouse gases (climate sensitivity), and what the consequences of global warming will be.Global warming remains an issue of widespread political debate, often split along party political lines, especially in the United States. Many of the largely settled scientific issues, such as the human responsibility for global warming, remain the subject of politically or economically motivated attempts to downplay, dismiss or deny them – an ideological phenomenon categorised by academics and scientists as climate change denial. The sources of funding for those involved with climate science – both supporting and opposing mainstream scientific positions – have been questioned by both sides. There are debates about the best policy responses to the science, their cost-effectiveness and their urgency. Climate scientists, especially in the United States, have reported official and oil-industry pressure to censor or suppress their work and hide scientific data, with directives not to discuss the subject in public communications. Legal cases regarding global warming, its effects, and measures to reduce it have reached American courts. The fossil fuels lobby and free market think tanks have often been identified as overtly or covertly supporting efforts to undermine or discredit the scientific consensus on global warming.