Hansen et al Climate change
... became apparent. Summer sea ice cover in the Arctic plummeted in 2007 and 2011 to an area 40 percent less than a few decades earlier and Arctic sea ice thickness declined a factor of four faster than simulated in IPCC climate models (4). The Greenland and Antarctic ice sheets began to shed ice at a ...
... became apparent. Summer sea ice cover in the Arctic plummeted in 2007 and 2011 to an area 40 percent less than a few decades earlier and Arctic sea ice thickness declined a factor of four faster than simulated in IPCC climate models (4). The Greenland and Antarctic ice sheets began to shed ice at a ...
Scientific Case for Avoiding Dangerous Climate
... became apparent. Summer sea ice cover in the Arctic plummeted in 2007 and 2011 to an area 40 percent less than a few decades earlier and Arctic sea ice thickness declined a factor of four faster than simulated in IPCC climate models (4). The Greenland and Antarctic ice sheets began to shed ice at a ...
... became apparent. Summer sea ice cover in the Arctic plummeted in 2007 and 2011 to an area 40 percent less than a few decades earlier and Arctic sea ice thickness declined a factor of four faster than simulated in IPCC climate models (4). The Greenland and Antarctic ice sheets began to shed ice at a ...
Observed Climate Change and the Negligible Global Effect of
... its established existence and influence, this natural cycle is often overlooked or ignored in zealous attempts to paint the current climate of Alaska as being one primarily molded by the emissions from anthropogenic industrial activities. In truth, the climate of Alaska and the ecosystems influenced ...
... its established existence and influence, this natural cycle is often overlooked or ignored in zealous attempts to paint the current climate of Alaska as being one primarily molded by the emissions from anthropogenic industrial activities. In truth, the climate of Alaska and the ecosystems influenced ...
GSA presentation 2012
... Introduction to most widely-recognized science-based information sources on climate change and impacts. o U.S. Global Change Research Program (USGCRP), International Panel on Climate Change (IPCC), U.S. National Academies, NASA, NOAA, the most recent AMS/NOAA State of the Climate reports, and the Au ...
... Introduction to most widely-recognized science-based information sources on climate change and impacts. o U.S. Global Change Research Program (USGCRP), International Panel on Climate Change (IPCC), U.S. National Academies, NASA, NOAA, the most recent AMS/NOAA State of the Climate reports, and the Au ...
Environment Canada`s International Polar Year Achievements
... some way with this extreme and beautiful environment. The Arctic environment sustains important habitat for many mammal and bird species, the northern territories and provinces provide important natural resources, Arctic peoples contribute to the well-being and prosperity of Canada, and often Arctic ...
... some way with this extreme and beautiful environment. The Arctic environment sustains important habitat for many mammal and bird species, the northern territories and provinces provide important natural resources, Arctic peoples contribute to the well-being and prosperity of Canada, and often Arctic ...
global warming - Libertarian Alliance
... In his extensive study of the Greenhouse Effect,4 all the technical information used by Patrick Michaels is either provided in the refereed scientific literature, is based on that literature, or has been presented at scientific meetings for which presentations were prescreened by a program committee ...
... In his extensive study of the Greenhouse Effect,4 all the technical information used by Patrick Michaels is either provided in the refereed scientific literature, is based on that literature, or has been presented at scientific meetings for which presentations were prescreened by a program committee ...
sean patrick bryan - Woods Hole Oceanographic Institution
... University of Rochester, Dept. of Earth and Environmental Sciences Seminar, “Insights into the glacial to interglacial atmospheric CO2 rise from marine radiocarbon.” ...
... University of Rochester, Dept. of Earth and Environmental Sciences Seminar, “Insights into the glacial to interglacial atmospheric CO2 rise from marine radiocarbon.” ...
Inuit and Scientific Perspectives on the Relationship Between Sea
... Therefore, it is important to understand the links between potential climate change impacts and arctic sea ice patterns, as well as the related consequences for northern coastal populations. To realize such a comprehensive understanding of the relationship between sea ice and climate change, it is e ...
... Therefore, it is important to understand the links between potential climate change impacts and arctic sea ice patterns, as well as the related consequences for northern coastal populations. To realize such a comprehensive understanding of the relationship between sea ice and climate change, it is e ...
An Abrupt Climate Change Scenario and Its
... so common, we outline an abrupt climate change scenario patterned after the 100year event that occurred about 8,200 years ago. This abrupt change scenario is characterized by the following conditions: • Annual average temperatures drop by up to 5 degrees Fahrenheit over Asia and North America and 6 ...
... so common, we outline an abrupt climate change scenario patterned after the 100year event that occurred about 8,200 years ago. This abrupt change scenario is characterized by the following conditions: • Annual average temperatures drop by up to 5 degrees Fahrenheit over Asia and North America and 6 ...
Cool It: The Skeptical Environmentalist`s Guide to Global Warming
... Chapter III: Global Warming: Our Many Worries Summary: Melting Glaciers: Lomborg makes the case that the world’s glaciers naturally advance and retreat, so we should calm down a little. Additionally, he points out that the glaciers have actually been retreating since the 1800s (note, however, that h ...
... Chapter III: Global Warming: Our Many Worries Summary: Melting Glaciers: Lomborg makes the case that the world’s glaciers naturally advance and retreat, so we should calm down a little. Additionally, he points out that the glaciers have actually been retreating since the 1800s (note, however, that h ...
Causes of Sea Level Rise: What the Science Tells Us
... From the rocky shoreline of Maine to the busy trading port of New Orleans, from historic Golden Gate Park in San Francisco to the golden sands of Miami Beach, our coasts are an integral part of American life. Where the sea meets land sit some of our most densely populated cities, most popular touris ...
... From the rocky shoreline of Maine to the busy trading port of New Orleans, from historic Golden Gate Park in San Francisco to the golden sands of Miami Beach, our coasts are an integral part of American life. Where the sea meets land sit some of our most densely populated cities, most popular touris ...
Antarctic climate change and the environment
... to identify when present day changes exceed the natural state. Concentrations of the greenhouse gas CO2 in the atmosphere ranged from roughly 3000 ppm (parts per ...
... to identify when present day changes exceed the natural state. Concentrations of the greenhouse gas CO2 in the atmosphere ranged from roughly 3000 ppm (parts per ...
Document
... Global warming refers to the increasing temperature of the Earth. Scientists think it is mainly caused by gases ___1___ when fuels such as coal and oil are burned. ___2___ the world burning more fuel than ever, global warming could mean big trouble for humans. It already has caused glaciers to melt, ...
... Global warming refers to the increasing temperature of the Earth. Scientists think it is mainly caused by gases ___1___ when fuels such as coal and oil are burned. ___2___ the world burning more fuel than ever, global warming could mean big trouble for humans. It already has caused glaciers to melt, ...
S TAT E O F T H E WO R... Into a Warming World 2 0
... (GHGs)—principally carbon dioxide (CO2) from the burning of fossil fuels—continue to grow rapidly. As a consequence, the concentration of carbon dioxide in the atmosphere has increased faster during the last 10 years than at any time since continuous measurements began in 1960.1 Unabated, current in ...
... (GHGs)—principally carbon dioxide (CO2) from the burning of fossil fuels—continue to grow rapidly. As a consequence, the concentration of carbon dioxide in the atmosphere has increased faster during the last 10 years than at any time since continuous measurements began in 1960.1 Unabated, current in ...
Winter et al 1997b
... proportion of sediment that was deposited in the central Arctic Ocean since 1.7 Ma having been derived from the northern Canada or Queen Elizabeth Island region. Changes in the strontium, neodymium, and lead isotope compositions of Arctic seawater are determined by analyzing the oxide fractions of F ...
... proportion of sediment that was deposited in the central Arctic Ocean since 1.7 Ma having been derived from the northern Canada or Queen Elizabeth Island region. Changes in the strontium, neodymium, and lead isotope compositions of Arctic seawater are determined by analyzing the oxide fractions of F ...
Science of Climate Change
... mitigation policies and related sustainable development practices, global GHG emissions will continue to grow over the next few decades.” While there remains uncertainty over the exact scale and speed of future changes in the world’s climate, there is no disagreement about the direction of change, o ...
... mitigation policies and related sustainable development practices, global GHG emissions will continue to grow over the next few decades.” While there remains uncertainty over the exact scale and speed of future changes in the world’s climate, there is no disagreement about the direction of change, o ...
“icehouse” (cold) climates
... 750–580 Ma) contains rocks deposited in two or more severe Icehouse intervals (Harland, 1964; Knoll, 2000). Laminated cap carbonates with depleted d13C ratios are found on top of glacial marine diamictites in many successions (Kauffman et al., 1997). The sharp juxtaposition of icehouse versus greenh ...
... 750–580 Ma) contains rocks deposited in two or more severe Icehouse intervals (Harland, 1964; Knoll, 2000). Laminated cap carbonates with depleted d13C ratios are found on top of glacial marine diamictites in many successions (Kauffman et al., 1997). The sharp juxtaposition of icehouse versus greenh ...
OESCHGER, HANS (b. Ottenbach, Zürich, Switzerland, 2 April 1927
... changes in the atmospheric CO2 concentrations that were measured on the same ice core and thought to be associated with these rapid climatic changes. They argued that the warm phases are characterized by a rapid turnover rate of the North Atlantic Ocean creating high levels of CO2, whereas during th ...
... changes in the atmospheric CO2 concentrations that were measured on the same ice core and thought to be associated with these rapid climatic changes. They argued that the warm phases are characterized by a rapid turnover rate of the North Atlantic Ocean creating high levels of CO2, whereas during th ...
Vanishing Polar Ice Sheets
... in the last 24 m.y. Atmospheric CO2 concentration has increased from 280 ppm in the pre-industrial times to 390 ppm in early 2010. Earth’s atmosphere last had such concentrations ~3 million years ago when geochemical measurements indicate global surface temperature was ~3◦ C warmer than today, and g ...
... in the last 24 m.y. Atmospheric CO2 concentration has increased from 280 ppm in the pre-industrial times to 390 ppm in early 2010. Earth’s atmosphere last had such concentrations ~3 million years ago when geochemical measurements indicate global surface temperature was ~3◦ C warmer than today, and g ...
West Antarctic Peninsula: An ice
... greater exposure of the ocean to the atmosphere and, consequently, greater mixing of the upper ocean due to both mechanical (wind-driven) processes and buoyancy-driven mechanisms. This greater vertical mixing spreads the glacial melt received by the nearshore ocean over progressively deeper layers, ...
... greater exposure of the ocean to the atmosphere and, consequently, greater mixing of the upper ocean due to both mechanical (wind-driven) processes and buoyancy-driven mechanisms. This greater vertical mixing spreads the glacial melt received by the nearshore ocean over progressively deeper layers, ...
The Decline and Fall of Global Warming
... Schlesinger and Jiang (1991) and others have argued that response times for ocean heating are fairly short, on the order of 40 to 60 years. The relatively small observed warming that can be ascribed to greenhouse changes would then yield a lower sensitivity (assuming a 1950 net greenhouse change of ...
... Schlesinger and Jiang (1991) and others have argued that response times for ocean heating are fairly short, on the order of 40 to 60 years. The relatively small observed warming that can be ascribed to greenhouse changes would then yield a lower sensitivity (assuming a 1950 net greenhouse change of ...
What caused Glacial-Interglacial CO2 Change?
... • Adkins et al, 2002, showed bottom waters around Antarctica are significantly saltier than the rest of the ocean, apparently from accumulation of brine during sea ice production. • This shows that the glacial deep ocean was more stably stratified than it is today. • Geothermal heat would have slowl ...
... • Adkins et al, 2002, showed bottom waters around Antarctica are significantly saltier than the rest of the ocean, apparently from accumulation of brine during sea ice production. • This shows that the glacial deep ocean was more stably stratified than it is today. • Geothermal heat would have slowl ...
Environmental Variability and Climate Change
... evidence is now overwhelming that such changes are a consequence of human activities, but these are superimposed on underlying natural variations. Climate on Earth naturally undergoes changes driven by external factors such as variations in solar output and internal factors like volcanic eruptions. ...
... evidence is now overwhelming that such changes are a consequence of human activities, but these are superimposed on underlying natural variations. Climate on Earth naturally undergoes changes driven by external factors such as variations in solar output and internal factors like volcanic eruptions. ...
Chapter 18: Human Impacts on Climate
... What would be the positive and negative effects of implementing the European approach in Canada? 5. Harmful practices can continue for years before they are deemed unacceptable. List three activities that are now considered inappropriate or illegal that were commonplace just a few decades ago. Do yo ...
... What would be the positive and negative effects of implementing the European approach in Canada? 5. Harmful practices can continue for years before they are deemed unacceptable. List three activities that are now considered inappropriate or illegal that were commonplace just a few decades ago. Do yo ...
Man-‐Made Global Warming is a Scam
... There is no direct link between man-‐made fossil fuel emissions and global temperature on two counts. Firstly it is not agreed that increased CO2 is a consequence of man-‐made fossil fuel emissions and ...
... There is no direct link between man-‐made fossil fuel emissions and global temperature on two counts. Firstly it is not agreed that increased CO2 is a consequence of man-‐made fossil fuel emissions and ...