Chapter 7.2 Revision Questions
... Complete Figure 2 to state likely impacts of global warming on the environment and society. ...
... Complete Figure 2 to state likely impacts of global warming on the environment and society. ...
Global Warming and the Planetary Water Cycle
... synchronously resulting in glacial / interglacial cycles [Petit, et al, 1999]. Atmospheric carbon dioxide levels are presently at 379 ppm with virtually all of the rise (from 290 ppm circa 1750) having taken place over the past 120 years [Etheridge, et al, 1998]. The planetary climate system is resp ...
... synchronously resulting in glacial / interglacial cycles [Petit, et al, 1999]. Atmospheric carbon dioxide levels are presently at 379 ppm with virtually all of the rise (from 290 ppm circa 1750) having taken place over the past 120 years [Etheridge, et al, 1998]. The planetary climate system is resp ...
Measuring oxygen concentrations in sea water in the remote past
... 30 January 2015, by Charvy Narain, Oxsciblog OxSciBlog: How did you go about measuring deep ocean conditions from such a long time ago, and in such an inaccessible location? Babette Hoogakker: We did this by looking at the shells of two species of benthic foraminifera (singlecell, deep ocean bottom ...
... 30 January 2015, by Charvy Narain, Oxsciblog OxSciBlog: How did you go about measuring deep ocean conditions from such a long time ago, and in such an inaccessible location? Babette Hoogakker: We did this by looking at the shells of two species of benthic foraminifera (singlecell, deep ocean bottom ...
投影片 1
... carbon-climate model based on an atmosphereocean general circulation model to address this question and found that coupled processes could significantly accelerate climate change. This was because climate change weakened the ability of the oceans and biosphere to take up carbon and could even trigge ...
... carbon-climate model based on an atmosphereocean general circulation model to address this question and found that coupled processes could significantly accelerate climate change. This was because climate change weakened the ability of the oceans and biosphere to take up carbon and could even trigge ...
Planktonic world
... though the overall diversity of viruses in the oceans appears quite limited.” Understanding the distribution and the interactions of the plankton across the oceans will be very useful for predictive models necessary to study climate change. Is plankton affected by climate change? The uniqueness of t ...
... though the overall diversity of viruses in the oceans appears quite limited.” Understanding the distribution and the interactions of the plankton across the oceans will be very useful for predictive models necessary to study climate change. Is plankton affected by climate change? The uniqueness of t ...
International press release
... though the overall diversity of viruses in the oceans appears quite limited.” Understanding the distribution and the interactions of the plankton across the oceans will be very useful for predictive models necessary to study climate change. Is plankton affected by climate change? The uniqueness of t ...
... though the overall diversity of viruses in the oceans appears quite limited.” Understanding the distribution and the interactions of the plankton across the oceans will be very useful for predictive models necessary to study climate change. Is plankton affected by climate change? The uniqueness of t ...
The Carbon Cycle and Global Warming
... carbon storage: in the bodies of living things. When living things die, decomposers return organic carbon to the cycle in an inorganic form. Exception: large amounts of organic carbons are stored in bogs. • Little oxygen so decomposition is very slow • Carbon remains locked in peat for many year ...
... carbon storage: in the bodies of living things. When living things die, decomposers return organic carbon to the cycle in an inorganic form. Exception: large amounts of organic carbons are stored in bogs. • Little oxygen so decomposition is very slow • Carbon remains locked in peat for many year ...
OSPAR Decision 2007/1 to Prohibit the Storage of
... BEING SERIOUSLY CONCERNED by the implications for the marine environment of climate change and ocean acidification due to elevated concentrations of carbon dioxide in the atmosphere; EMPHASISING the need to further develop renewable and low carbon forms of energy generation and use; RECOGNISING that ...
... BEING SERIOUSLY CONCERNED by the implications for the marine environment of climate change and ocean acidification due to elevated concentrations of carbon dioxide in the atmosphere; EMPHASISING the need to further develop renewable and low carbon forms of energy generation and use; RECOGNISING that ...
OSPAR Decision 2007/1 to Prohibit the Storage of Carbon Dioxide
... BEING SERIOUSLY CONCERNED by the implications for the marine environment of climate change and ocean acidification due to elevated concentrations of carbon dioxide in the atmosphere; EMPHASISING the need to further develop renewable and low carbon forms of energy generation and use; RECOGNISING that ...
... BEING SERIOUSLY CONCERNED by the implications for the marine environment of climate change and ocean acidification due to elevated concentrations of carbon dioxide in the atmosphere; EMPHASISING the need to further develop renewable and low carbon forms of energy generation and use; RECOGNISING that ...
The ocean… Overfishing Marine debris Introduced species Pollution
... Some of the human activities believed to be driving this change include the burning of coal and oil, urbanization, and deforestation. These human actions have led to increases of greenhouse gasses, which trap heat in our atmosphere and result in increases in the Earth’s temperature. Data collected b ...
... Some of the human activities believed to be driving this change include the burning of coal and oil, urbanization, and deforestation. These human actions have led to increases of greenhouse gasses, which trap heat in our atmosphere and result in increases in the Earth’s temperature. Data collected b ...
Film Six Degrees Answer Key
... Film: Six (Celsius) Degrees Could Change the World (1 hr 35 min) ...
... Film: Six (Celsius) Degrees Could Change the World (1 hr 35 min) ...
Document
... 6. …more and bigger storms… 7. …less ice and snow… 8. …higher sea levels… 9. …and acid oceans. 10. These changes will be with us for a long time. 11. How bad things get is up to us. 12. It’s irreversible* (but there’s an asterisk). ...
... 6. …more and bigger storms… 7. …less ice and snow… 8. …higher sea levels… 9. …and acid oceans. 10. These changes will be with us for a long time. 11. How bad things get is up to us. 12. It’s irreversible* (but there’s an asterisk). ...
The Ocean is Planet Earth`s Life Support System
... • Increases in water temperature of just 1-2˚C can cause coral reefs to become severely stressed, leading to death if thermal stress is prolonged, thereby endangering coral reef ecosystems. • Marine species may respond to ocean warming by altering their geographic ranges. Temperature change has be ...
... • Increases in water temperature of just 1-2˚C can cause coral reefs to become severely stressed, leading to death if thermal stress is prolonged, thereby endangering coral reef ecosystems. • Marine species may respond to ocean warming by altering their geographic ranges. Temperature change has be ...
Lecture
... Concentration of carbon dioxide has been increasing over the past century The increase in atmospheric carbon dioxide over the past century is a consequence of human activity There has been an increase in average global temperature during the past century. Carbon dioxide and other gases generated by ...
... Concentration of carbon dioxide has been increasing over the past century The increase in atmospheric carbon dioxide over the past century is a consequence of human activity There has been an increase in average global temperature during the past century. Carbon dioxide and other gases generated by ...
Press Release - Global Carbon Project
... Metzl, Nathan P Gillett and Martin Heimann. The stabilisation of atmospheric CO2 is also at risk. The target stabilisation of 450 parts per million for a 2ºC warming is less than 70 parts per million above the current concentration of 382 parts per million (rising by 2 parts per million each year). ...
... Metzl, Nathan P Gillett and Martin Heimann. The stabilisation of atmospheric CO2 is also at risk. The target stabilisation of 450 parts per million for a 2ºC warming is less than 70 parts per million above the current concentration of 382 parts per million (rising by 2 parts per million each year). ...
PowerPoint slides
... 1,000 years after emissions stop. Following cessation of emissions, removal of atmospheric carbon dioxide decreases radiative forcing, but is largely compensated by slower loss of heat to the ocean, so that atmospheric temperatures do not drop significantly for at least 1,000 years. Among illustrati ...
... 1,000 years after emissions stop. Following cessation of emissions, removal of atmospheric carbon dioxide decreases radiative forcing, but is largely compensated by slower loss of heat to the ocean, so that atmospheric temperatures do not drop significantly for at least 1,000 years. Among illustrati ...
Global warming in context - NIS Aktobe Global Perspectives
... of fuels increase nitric acid that rapidly converts into soluble nitrogen that are washed out by rain stimulating plant growth and increasing NPP. Land use management- in northern and mid-latitudes forests where logging occurs there is evidence of rapid re growth. Although this year-year increase in ...
... of fuels increase nitric acid that rapidly converts into soluble nitrogen that are washed out by rain stimulating plant growth and increasing NPP. Land use management- in northern and mid-latitudes forests where logging occurs there is evidence of rapid re growth. Although this year-year increase in ...
Modeling the whole Earth System
... 10th Percentile Drought: Number of years out of 47 in a simulation of future climate (2071-2117) for which the June-August mean rainfall was less than the 5th driest year of 47 in a simulation of current climate (1961-2007). ...
... 10th Percentile Drought: Number of years out of 47 in a simulation of future climate (2071-2117) for which the June-August mean rainfall was less than the 5th driest year of 47 in a simulation of current climate (1961-2007). ...
ENVR Changing Atmospheric Chemistry: Environmental Implications of Land-Air Interactions 247
... Climate Science Toolkit and its present contents. We will consider the rationale for including the concepts there now and also what is missing that might provide a more complete picture of the major factors that affect the climate and the changes it is undergoing. One that has been identified is the ...
... Climate Science Toolkit and its present contents. We will consider the rationale for including the concepts there now and also what is missing that might provide a more complete picture of the major factors that affect the climate and the changes it is undergoing. One that has been identified is the ...
Fishing in the Arctic And AntArctic
... ice-free period in the Arctic, for example, affects annual primary production, which is at the base of the food chain supporting populations of fish, sea mammals, and seabirds. As the amount of ice in the Arctic has considerably reduced since the 1970s, and projections indicate that the reduction wi ...
... ice-free period in the Arctic, for example, affects annual primary production, which is at the base of the food chain supporting populations of fish, sea mammals, and seabirds. As the amount of ice in the Arctic has considerably reduced since the 1970s, and projections indicate that the reduction wi ...
Study suggests Earth is heading toward a second catastrophic hot
... The analogy between the PETM and the present, then, is less than perfect — and our own era might be worse in key ways. "The two main conclusions is that ocean acidification will be more severe, ecosystems may be hit harder because of the rate" of carbon release, Zeebe said. And not only have we only ...
... The analogy between the PETM and the present, then, is less than perfect — and our own era might be worse in key ways. "The two main conclusions is that ocean acidification will be more severe, ecosystems may be hit harder because of the rate" of carbon release, Zeebe said. And not only have we only ...
CARBONCYCLEGW1
... increased slowly due to an increase in greenhouse gases (CFC’s, nitrous oxides, methane, and carbon dioxide) ...
... increased slowly due to an increase in greenhouse gases (CFC’s, nitrous oxides, methane, and carbon dioxide) ...
10th International Carbon Dioxide Conference 2017
... Net carbon exchange between tropical land and the atmosphere is potentially important because the vast amounts of carbon in forests and soils can be released on short time-scales e.g. via deforestation or changes in temperature and moisture. Such changes may thus cause feedbacks on global climate, a ...
... Net carbon exchange between tropical land and the atmosphere is potentially important because the vast amounts of carbon in forests and soils can be released on short time-scales e.g. via deforestation or changes in temperature and moisture. Such changes may thus cause feedbacks on global climate, a ...
as delivered on Nov. 20, 2012
... “[O]ptions that would involve large-scale engineering of our environment in order to combat or counteract the effects of changes in atmospheric chemistry.” U.S. National Academy of Sciences ...
... “[O]ptions that would involve large-scale engineering of our environment in order to combat or counteract the effects of changes in atmospheric chemistry.” U.S. National Academy of Sciences ...
G C D
... Global warming is increasing ocean temperatures and raising sea levels. New scientific research shows that our oceans are beginning to face yet another threat due to global warming-related emissions – their basic chemistry is changing because of the uptake of carbon dioxide released by human activit ...
... Global warming is increasing ocean temperatures and raising sea levels. New scientific research shows that our oceans are beginning to face yet another threat due to global warming-related emissions – their basic chemistry is changing because of the uptake of carbon dioxide released by human activit ...
Iron fertilization
Iron fertilization is the intentional introduction of iron to the upper ocean to stimulate a phytoplankton bloom. This is intended to enhance biological productivity, which can benefit the marine food chain and is under investigation in hopes of increasing carbon dioxide removal from the atmosphere. Iron is a trace element necessary for photosynthesis in all plants. It is highly insoluble in sea water and is often the limiting nutrient for phytoplankton growth. Large algal blooms can be created by supplying iron to iron-deficient ocean waters.A number of ocean labs, scientists and businesses are exploring fertilization as a means to sequester atmospheric carbon dioxide in the deep ocean, and to increase marine biological productivity which is likely in decline as a result of climate change. Since 1993, thirteen international research teams have completed ocean trials demonstrating that phytoplankton blooms can be stimulated by iron addition. However, controversy remains over the effectiveness of atmospheric CO2 sequestration and ecological effects. The most recent open ocean trials of ocean iron fertilization were in 2009 (January to March) in the South Atlantic by project Lohafex, and in July 2012 in the North Pacific off the coast of British Columbia, Canada, by the Haida Salmon Restoration Corporation (HSRC).Fertilization also occurs naturally when upwellings bring nutrient-rich water to the surface, as occurs when ocean currents meet an ocean bank or a sea mount. This form of fertilization produces the world's largest marine habitats. Fertilization can also occur when weather carries wind blown dust long distances over the ocean, or iron-rich minerals are carried into the ocean by glaciers, rivers and icebergs.