Slide 1
... What are Greenhouse Gases? • Greenhouse gases (i) absorb outward bound infrared radiation from the earth’s surface. (ii) Delay the return of infrared radiation to space (iii) warm the atmosphere. • The “greenhouse effect” modulates radiation in the earth-atmosphere system. ...
... What are Greenhouse Gases? • Greenhouse gases (i) absorb outward bound infrared radiation from the earth’s surface. (ii) Delay the return of infrared radiation to space (iii) warm the atmosphere. • The “greenhouse effect” modulates radiation in the earth-atmosphere system. ...
C. Causes of global warming
... There is evidence of global warming from polar icecap including: — National Snow and Ice Data Center (NSIDC) claimed that examination of springtime ice thickness in the Arctic Ocean indicates that the mean ice thickness decreased 1.5 meters between the mid-1980s and early 1990s. ...
... There is evidence of global warming from polar icecap including: — National Snow and Ice Data Center (NSIDC) claimed that examination of springtime ice thickness in the Arctic Ocean indicates that the mean ice thickness decreased 1.5 meters between the mid-1980s and early 1990s. ...
APES CH19 Overview
... 2. There is evidence that the earth’s troposphere is warming, mostly because of human actions. The Intergovernmental Panel on Climate Change (IPCC) was formed in 1988 to evaluate possible future climate changes. The major findings of the IPCC are: a. The earth’s lower atmosphere is warming. b. Most ...
... 2. There is evidence that the earth’s troposphere is warming, mostly because of human actions. The Intergovernmental Panel on Climate Change (IPCC) was formed in 1988 to evaluate possible future climate changes. The major findings of the IPCC are: a. The earth’s lower atmosphere is warming. b. Most ...
Climate change, agriculture and national policy in Kazakhstan
... 21 century due to glacier melting in Kazakhstan. According to climatological forecast the average temperature can raise in 2,7-4,7 oС by the end of 21 century on the territory of Kazakhstan. The most climate-sensitive sector in Kazakhstan is agriculture, which is already feeling the effects of clima ...
... 21 century due to glacier melting in Kazakhstan. According to climatological forecast the average temperature can raise in 2,7-4,7 oС by the end of 21 century on the territory of Kazakhstan. The most climate-sensitive sector in Kazakhstan is agriculture, which is already feeling the effects of clima ...
Global Warming: Will Human-Induced Climate Change Destroy the
... years ago. Most of the increased carbon dioxide comes from fossil fuels ...
... years ago. Most of the increased carbon dioxide comes from fossil fuels ...
Document
... M2: The Intergovernmental Panel on Climate Change (www.ipcc.ch) concludes in its 4th Assessment Report that global warming has been occurring since the early 1800’s. They point to climatological records that show the global mean temperature has risen between 1 and 1.5 degrees C. Most scientists agre ...
... M2: The Intergovernmental Panel on Climate Change (www.ipcc.ch) concludes in its 4th Assessment Report that global warming has been occurring since the early 1800’s. They point to climatological records that show the global mean temperature has risen between 1 and 1.5 degrees C. Most scientists agre ...
1.1 Safety in the Science Classroom
... More greenhouse gases in the atmosphere = increase of natural greenhouse effect Greenhouse gases include water vapour, CO2, methane, nitrous oxide, and CFCs. Global warming potential (GWP) refers to the ability to trap thermal energy. • CO2 is given a GWP of 1; CFCs are 4750-5310. ...
... More greenhouse gases in the atmosphere = increase of natural greenhouse effect Greenhouse gases include water vapour, CO2, methane, nitrous oxide, and CFCs. Global warming potential (GWP) refers to the ability to trap thermal energy. • CO2 is given a GWP of 1; CFCs are 4750-5310. ...
Rebuttal to the Rotarian Comments on Climate Change
... has "massive environmental side effects, including climate change, loss of biodiversity, and acidification of the oceans." and claims it is "dangerous". Each of these claims is untrue and is contradicted by evidence. Any form of fuel use will have some environmental effect, but fossil fuel use has b ...
... has "massive environmental side effects, including climate change, loss of biodiversity, and acidification of the oceans." and claims it is "dangerous". Each of these claims is untrue and is contradicted by evidence. Any form of fuel use will have some environmental effect, but fossil fuel use has b ...
Slices of Time - Wedgemere Group
... Yesterday, the U.S. EPA released the agency's Climate Change Indicators in the United States report (see the blurbs in this issue for more information on that). It shows that global carbon dioxide emissions increased by 42 percent between 1990 and 2010. I know I am not the only one of you out there ...
... Yesterday, the U.S. EPA released the agency's Climate Change Indicators in the United States report (see the blurbs in this issue for more information on that). It shows that global carbon dioxide emissions increased by 42 percent between 1990 and 2010. I know I am not the only one of you out there ...
ProjectARCC: Archivists Responding to Climate Change
... Protect archival collections from the impact of climate change. Reduce our professional carbon and ecological footprint. Elevate relevant collections to improve public awareness and understanding of climate change. Preserve this epochal moment in history for future research and understanding. ...
... Protect archival collections from the impact of climate change. Reduce our professional carbon and ecological footprint. Elevate relevant collections to improve public awareness and understanding of climate change. Preserve this epochal moment in history for future research and understanding. ...
The Big Bang
... Sea levels Test for sea level rise: • Melting of land ice • Thermal expansion of water • Changes in water stored on land ...
... Sea levels Test for sea level rise: • Melting of land ice • Thermal expansion of water • Changes in water stored on land ...
Global Climate Change Fact Sheet - Minnesota Pollution Control
... seven to 10 degrees F colder than today, and glaciers covered most of North America. A temperature seven degrees warmer than today will no doubt bring equally dramatic environmental changes — and at a rate perhaps 100 times faster than any previous climate changes. ...
... seven to 10 degrees F colder than today, and glaciers covered most of North America. A temperature seven degrees warmer than today will no doubt bring equally dramatic environmental changes — and at a rate perhaps 100 times faster than any previous climate changes. ...
Intro_Clim_Sci_prelim_post
... “The radiative forcing of the surface-troposphere system due to the perturbation (say, a change in greenhouse gas concentrations) is the change in net (down minus up) irradiance (solar plus long-wave in Wm-2) at the tropopause AFTER allowing for stratospheric temperatures to readjust to radiative eq ...
... “The radiative forcing of the surface-troposphere system due to the perturbation (say, a change in greenhouse gas concentrations) is the change in net (down minus up) irradiance (solar plus long-wave in Wm-2) at the tropopause AFTER allowing for stratospheric temperatures to readjust to radiative eq ...
Climate Change - Cloudfront.net
... • After the Mt Pinatubo eruption the global temperature fell ~0.5°C or 0.9°F the next year – The ash and sulfuric compounds actually reflected sunlight back into space BUT . . . What else do volcanoes release? Carbon Dioxide And What is Carbon Dioxide? ...
... • After the Mt Pinatubo eruption the global temperature fell ~0.5°C or 0.9°F the next year – The ash and sulfuric compounds actually reflected sunlight back into space BUT . . . What else do volcanoes release? Carbon Dioxide And What is Carbon Dioxide? ...
Slide 1
... “Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level” Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report 2007 ...
... “Warming of the climate system is unequivocal, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level” Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report 2007 ...
Global warming: At what point does atmospheric greenhouse gas
... In recent decades, the concept of global warming has developed increasing concern among the scientific community and general public alike. What was initially dismissed as little more than unlikely has now become a severe warning for global climate crisis threatening not only our way of life but ulti ...
... In recent decades, the concept of global warming has developed increasing concern among the scientific community and general public alike. What was initially dismissed as little more than unlikely has now become a severe warning for global climate crisis threatening not only our way of life but ulti ...
- Sustainable Loudoun
... 10. Another distinctive pattern of greenhouse warming is cooling in the upper atmosphere, otherwise known as the stratosphere. This is exactly what's happening [14]. 11. With the lower atmosphere (the troposphere) warming and the upper atmosphere (the stratosphere) cooling, another consequence is th ...
... 10. Another distinctive pattern of greenhouse warming is cooling in the upper atmosphere, otherwise known as the stratosphere. This is exactly what's happening [14]. 11. With the lower atmosphere (the troposphere) warming and the upper atmosphere (the stratosphere) cooling, another consequence is th ...
Cedar Rapids Data - Climate Science Program
... Global temperature trends of the 20C cannot be explained on the basis of natural variation alone Only when the influences of greenhouse gases and sulfate aerosols are included can the trends be explained Models that explain these trends, when projected into the future, indicate a 1.5-6.5oC war ...
... Global temperature trends of the 20C cannot be explained on the basis of natural variation alone Only when the influences of greenhouse gases and sulfate aerosols are included can the trends be explained Models that explain these trends, when projected into the future, indicate a 1.5-6.5oC war ...
chapter 19 powerpoint1
... The fundamental basis of climate change- that greenhouse gas concentrations are increasing and that this will lead to global warming is not in dispute among the vast majority of scientists. What is unclear is how much world temperatures will increase for a given change in greenhouse gases, because t ...
... The fundamental basis of climate change- that greenhouse gas concentrations are increasing and that this will lead to global warming is not in dispute among the vast majority of scientists. What is unclear is how much world temperatures will increase for a given change in greenhouse gases, because t ...
GeMUN 2012 Environment Commission Research Report
... Climate change has often occurred on earth due to natural causes over timescales that vary from decades to hundreds of thousands of years.However,on the basis of considerable evidence,there is strong consensus in the climate science research community that the changes that have been observed over th ...
... Climate change has often occurred on earth due to natural causes over timescales that vary from decades to hundreds of thousands of years.However,on the basis of considerable evidence,there is strong consensus in the climate science research community that the changes that have been observed over th ...
Choosing Environmental Policy Area
... observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level” “Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic green ...
... observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level” “Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic green ...
Physics Behind the Climate Change
... This graph shows the temperature variations for One of the largest uncertainties in future greenhouse past 140 years. It shows how temperature is rapidly emissions is the effect of technological change. If renewable energy sources become cost-effective, increasing in past 40 years. if there are majo ...
... This graph shows the temperature variations for One of the largest uncertainties in future greenhouse past 140 years. It shows how temperature is rapidly emissions is the effect of technological change. If renewable energy sources become cost-effective, increasing in past 40 years. if there are majo ...
A PLANET IN DANGER? Tool 3, Activity 6 Deforestation http://www
... Greenhouse gases (GHGs) are gases in the atmosphere that trap energy from the sun. Naturally occurring GHGs include water vapour, ozone, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Without them, the Earth's average temperature would be about 33°C lower than it is, making the climat ...
... Greenhouse gases (GHGs) are gases in the atmosphere that trap energy from the sun. Naturally occurring GHGs include water vapour, ozone, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Without them, the Earth's average temperature would be about 33°C lower than it is, making the climat ...
Global warming
Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.Multiple lines of scientific evidence show that the climate system is warming. Although the increase of near-surface atmospheric temperature is the measure of global warming often reported in the popular press, most of the additional energy stored in the climate system since 1970 has gone into ocean warming. The remainder has melted ice, and warmed the continents and atmosphere. Many of the observed changes since the 1950s are unprecedented over decades to millennia.Scientific understanding of global warming is increasing. The Intergovernmental Panel on Climate Change (IPCC) reported in 2014 that scientists were more than 95% certain that most of global warming is caused by increasing concentrations of greenhouse gases and other human (anthropogenic) activities. Climate model projections summarized in the report indicated that during the 21st century the global surface temperature is likely to rise a further 0.3 to 1.7 °C (0.5 to 3.1 °F) for their lowest emissions scenario using stringent mitigation and 2.6 to 4.8 °C (4.7 to 8.6 °F) for their highest. These findings have been recognized by the national science academies of the major industrialized nations.Future climate change and associated impacts will differ from region to region around the globe. Anticipated effects include warming global temperature, rising sea levels, changing precipitation, and expansion of deserts in the subtropics. Warming is expected to be greatest in the Arctic, with the continuing retreat of glaciers, permafrost and sea ice. Other likely changes include more frequent extreme weather events including heat waves, droughts, heavy rainfall, and heavy snowfall; ocean acidification; and species extinctions due to shifting temperature regimes. Effects significant to humans include the threat to food security from decreasing crop yields and the abandonment of populated areas due to flooding.Possible societal responses to global warming include mitigation by emissions reduction, adaptation to its effects, building systems resilient to its effects, and possible future climate engineering. Most countries are parties to the United Nations Framework Convention on Climate Change (UNFCCC),whose ultimate objective is to prevent dangerous anthropogenic climate change. The UNFCCC have adopted a range of policies designed to reduce greenhouse gas emissions and to assist in adaptation to global warming. Parties to the UNFCCC have agreed that deep cuts in emissions are required, and that future global warming should be limited to below 2.0 °C (3.6 °F) relative to the pre-industrial level.