Global_climate_Change-wiki - MM
... • are particularly good at absorbing infrared radiation • Include water vapor, carbon dioxide, methane, nitrogen oxides, ozone and chlorofluorocarbons (CFCs) • Greenhouse gases trap heat much as panes of glass do in a greenhouse • A small amount of gas has a big effect on temperature ...
... • are particularly good at absorbing infrared radiation • Include water vapor, carbon dioxide, methane, nitrogen oxides, ozone and chlorofluorocarbons (CFCs) • Greenhouse gases trap heat much as panes of glass do in a greenhouse • A small amount of gas has a big effect on temperature ...
Anthropogenic Contributors to Climate Change - 5.3
... observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.” https://www.ipcc.ch/publications_and_data/ar4/syr/en/spms1.html “Most of the observed increase in global average temperatures since the mid-20th century i ...
... observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.” https://www.ipcc.ch/publications_and_data/ar4/syr/en/spms1.html “Most of the observed increase in global average temperatures since the mid-20th century i ...
Climate Sensitivity - Earth and Environmental Sciences
... (in and out) at the Earth's surface. In this case we will use three known past examples of climate change to predict a forth – our future. We know that 20,000 years ago there were large ice sheets over the northern and southern hemisphere polar regions and ocean and land temperatures cooled. The mai ...
... (in and out) at the Earth's surface. In this case we will use three known past examples of climate change to predict a forth – our future. We know that 20,000 years ago there were large ice sheets over the northern and southern hemisphere polar regions and ocean and land temperatures cooled. The mai ...
1.1 Safety in the Science Classroom
... The Arctic regions are losing permafrost and Arctic Ocean ice cover. Growing seasons are getting longer and more precipitation is falling. • There could be heavier spring rains and severe droughts in the future. • Fisheries could be very negatively affected. • Pollution concerns could lead to he ...
... The Arctic regions are losing permafrost and Arctic Ocean ice cover. Growing seasons are getting longer and more precipitation is falling. • There could be heavier spring rains and severe droughts in the future. • Fisheries could be very negatively affected. • Pollution concerns could lead to he ...
Setting the Scene: Climate Change
... There is a lot of debate as to whether climate change is a which we live will be changed forever. direct impact of human activities, but the Intergovernmental Panel on Climate Change (IPCC) recently concluded that the We need to develop and deploy CCS technologies in the rises in global average temp ...
... There is a lot of debate as to whether climate change is a which we live will be changed forever. direct impact of human activities, but the Intergovernmental Panel on Climate Change (IPCC) recently concluded that the We need to develop and deploy CCS technologies in the rises in global average temp ...
(O 2 ).
... Intergovernmental Panel on Climate Change (IPCC) • 90–99% likely that lower atmosphere is warming • 1906–2005: Ave. temp increased about 0.74˚C • 1970–2005: Annual greenhouse emissions up ...
... Intergovernmental Panel on Climate Change (IPCC) • 90–99% likely that lower atmosphere is warming • 1906–2005: Ave. temp increased about 0.74˚C • 1970–2005: Annual greenhouse emissions up ...
We Can Reduce the Threat of Climate Change (2)
... • CO2, CH4, and N2O emissions higher • Main sources: agriculture, deforestation, and burning of fossil fuels ...
... • CO2, CH4, and N2O emissions higher • Main sources: agriculture, deforestation, and burning of fossil fuels ...
Economic risk of change
... mayor Bloomberg: The New Action Heroes doing the things that gridlocked Washington won't. ...
... mayor Bloomberg: The New Action Heroes doing the things that gridlocked Washington won't. ...
Atmosphere, the Water Cycle and Climate Change
... Sea Level Rise Forecast Intergovernmental Panel on Climate Change 4th Assessment Report (FAR) Feb 2007 The last time the polar regions were significantly warmer than present for an extended period (about 125,000 years ago), reductions in polar ice volume led to 4 to 6 metres of sea level rise.” ...
... Sea Level Rise Forecast Intergovernmental Panel on Climate Change 4th Assessment Report (FAR) Feb 2007 The last time the polar regions were significantly warmer than present for an extended period (about 125,000 years ago), reductions in polar ice volume led to 4 to 6 metres of sea level rise.” ...
global warming Defen..
... NASA scientists may draw conclusions from their research and communicate them to the media, but "must make clear that they are presenting their individual views — not the views of the agency — and ask that they be sourced as such.“ (April 2, 2006) ...
... NASA scientists may draw conclusions from their research and communicate them to the media, but "must make clear that they are presenting their individual views — not the views of the agency — and ask that they be sourced as such.“ (April 2, 2006) ...
Emissions Trading: A Briefing
... – Forum of government and non-government organisations on adaptation ...
... – Forum of government and non-government organisations on adaptation ...
natural climate schange
... disappeared. • In addition, human activities have warmed the climate. ...
... disappeared. • In addition, human activities have warmed the climate. ...
Climate of the Earth: CO2 and Climate Change
... Astro 3 Climate Change: Key Points • Know the how the Greenhouse Effect warms planets. Atmospheres warm all planets • 20th/21st Century climate change is being caused by fossil fuel burning via Greenhouse warming • If all human-generated greenhouse gas emissions stopped, future temperatures would n ...
... Astro 3 Climate Change: Key Points • Know the how the Greenhouse Effect warms planets. Atmospheres warm all planets • 20th/21st Century climate change is being caused by fossil fuel burning via Greenhouse warming • If all human-generated greenhouse gas emissions stopped, future temperatures would n ...
Cutting Cards - Cross
... Manmade carbon dioxide emissions are roughly 5 percent of the total; the rest are from natural sources such as volcanoes, dying vegetation and animals. Annually, volcanoes alone produce more carbon dioxide than all of mankind's activities. Oceans are responsible for most greenhouse gases. Contrary t ...
... Manmade carbon dioxide emissions are roughly 5 percent of the total; the rest are from natural sources such as volcanoes, dying vegetation and animals. Annually, volcanoes alone produce more carbon dioxide than all of mankind's activities. Oceans are responsible for most greenhouse gases. Contrary t ...
The world is at a crossroads - Climate Justice in BC: Lessons for
... “The issue of climate change is one that we ignore at our own peril.” Barack Obama US President ...
... “The issue of climate change is one that we ignore at our own peril.” Barack Obama US President ...
2015 Bassam Z. Shakhashiri
... Director, Wisconsin Initiative for Science Literacy Department of Chemistry University of Wisconsin-Madison ...
... Director, Wisconsin Initiative for Science Literacy Department of Chemistry University of Wisconsin-Madison ...
Talk 5 - Research needs for decadal to centennial climate prediction
... Atmospheric circulation and radiation ...
... Atmospheric circulation and radiation ...
Al Gore`s An Inconvenient Truth: unscientific? It has been a week
... Nicolas Cullen of the Tropical Glaciology Group at the University of Innsbruck. Using recent highresolution satellite images, Cullen's team came to the conclusion that "rather than changes in 20th century climate being responsible for their demise, glaciers on Kilimanjaro appear to be remnants of a ...
... Nicolas Cullen of the Tropical Glaciology Group at the University of Innsbruck. Using recent highresolution satellite images, Cullen's team came to the conclusion that "rather than changes in 20th century climate being responsible for their demise, glaciers on Kilimanjaro appear to be remnants of a ...
International Geosphere-Biosphere Programme
... However, methane hydrate deposits can also serve as important sources in certain regions. Recent observations from the Arctic (Shakhova et al., 2010) show that methane is leaking out of reservoirs in the seabed along the East Siberian Arctic Shelf, aided by thawing of permanently frozen ground due ...
... However, methane hydrate deposits can also serve as important sources in certain regions. Recent observations from the Arctic (Shakhova et al., 2010) show that methane is leaking out of reservoirs in the seabed along the East Siberian Arctic Shelf, aided by thawing of permanently frozen ground due ...
Climate change and Pope Francis` visit with Congress
... Francis, who carries the moral authority of being the leader of the world’s largest Christian denomination, offers our elected officials the opportunity to hit the “reset” button on the climate change conversation happening in Washington. In his encyclical, the Pope said: “I urgently appeal, then, f ...
... Francis, who carries the moral authority of being the leader of the world’s largest Christian denomination, offers our elected officials the opportunity to hit the “reset” button on the climate change conversation happening in Washington. In his encyclical, the Pope said: “I urgently appeal, then, f ...
Document
... FEAR APPEAL M1: The Intergovernmental Panel on Climate Change (www.ipcc.ch) concludes in its 4th Assessment Report that global warming has been occurring for some time (at least since the early 1800’s), and has very likely been being driven by human activities. The report suggests that increased pro ...
... FEAR APPEAL M1: The Intergovernmental Panel on Climate Change (www.ipcc.ch) concludes in its 4th Assessment Report that global warming has been occurring for some time (at least since the early 1800’s), and has very likely been being driven by human activities. The report suggests that increased pro ...
Climate Change Review Package
... To make climate projections, scientists must first create scenarios based on possible human behaviour. Next, they determine the amount of greenhouse gases that would be produced under each scenario. Finally, they input these values into climate models to calculate how Earth’s climate would change u ...
... To make climate projections, scientists must first create scenarios based on possible human behaviour. Next, they determine the amount of greenhouse gases that would be produced under each scenario. Finally, they input these values into climate models to calculate how Earth’s climate would change u ...
Global Warming
... – Some heat escapes – Some heat is trapped by Greenhouse Gases • Ex: water vapor, carbon dioxide, methane, nitrous oxide ...
... – Some heat escapes – Some heat is trapped by Greenhouse Gases • Ex: water vapor, carbon dioxide, methane, nitrous oxide ...
doubling of CO 2
... “little observational evidence of a detectable human influence on climate” 1990 Report “The balance of evidence suggests a discernible human influence on global climate” 1995 Report “There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human ...
... “little observational evidence of a detectable human influence on climate” 1990 Report “The balance of evidence suggests a discernible human influence on global climate” 1995 Report “There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human ...
Taken from: http://climate
... but the models currently show wide variation in their results. For just one example, some models forecast less precipitation in the American southwest, where JPL is, while others foresee more precipitation. This lack of agreement on even the direction of change makes planning very difficult. There's ...
... but the models currently show wide variation in their results. For just one example, some models forecast less precipitation in the American southwest, where JPL is, while others foresee more precipitation. This lack of agreement on even the direction of change makes planning very difficult. There's ...
Climate change feedback
Climate change feedback is important in the understanding of global warming because feedback processes may amplify or diminish the effect of each climate forcing, and so play an important part in determining the climate sensitivity and future climate state. Feedback in general is the process in which changing one quantity changes a second quantity, and the change in the second quantity in turn changes the first. Positive feedback amplifies the change in the first quantity while negative feedback reduces it.The term ""forcing"" means a change which may ""push"" the climate system in the direction of warming or cooling. An example of a climate forcing is increased atmospheric concentrations of greenhouse gases. By definition, forcings are external to the climate system while feedbacks are internal; in essence, feedbacks represent the internal processes of the system. Some feedbacks may act in relative isolation to the rest of the climate system; others may be tightly coupled; hence it may be difficult to tell just how much a particular process contributes. Forcings, feedbacks and the dynamics of the climate system determine how much and how fast the climate changes. The main positive feedback in global warming is the tendency of warming to increase the amount of water vapor in the atmosphere, which in turn leads to further warming. The main negative feedback comes from the Stefan–Boltzmann law, the amount of heat radiated from the Earth into space changes with the fourth power of the temperature of Earth's surface and atmosphere.Some observed and potential effects of global warming are positive feedbacks, which contribute directly to further global warming. The Intergovernmental Panel on Climate Change's (IPCC) Fourth Assessment Report states that ""Anthropogenic warming could lead to some effects that are abrupt or irreversible, depending upon the rate and magnitude of the climate change.""