climate change faq - Scripps Institution of Oceanography
... Thanks to Scripps Institution of Oceanograhy researchers Jeff Severinghaus, Richard Somerville, and Dave Pierce for providing answers to these questions. ...
... Thanks to Scripps Institution of Oceanograhy researchers Jeff Severinghaus, Richard Somerville, and Dave Pierce for providing answers to these questions. ...
Climate-Change Challenge Today
... have indicated that this was a 1-in-200-year event before humans started to increase the global-average surface temperature and was a 1-in-100-year event by the early 2000s, when it occurred, but would be a 1-in-2 year event by 2040 and would constitute an unusually cool summer by 2070. A 2nd likeli ...
... have indicated that this was a 1-in-200-year event before humans started to increase the global-average surface temperature and was a 1-in-100-year event by the early 2000s, when it occurred, but would be a 1-in-2 year event by 2040 and would constitute an unusually cool summer by 2070. A 2nd likeli ...
Greenhouse Gases from Fossil Fuels and Their Impact on
... A discussion is presented on the natural “greenhouse effect” of the atmosphere, which is responsible for the present temperature of Earth’s surface, and the increases in that temperature due to the anthropogenic production of additional quantities of greenhouse gases (GHG). The conclusions of the IP ...
... A discussion is presented on the natural “greenhouse effect” of the atmosphere, which is responsible for the present temperature of Earth’s surface, and the increases in that temperature due to the anthropogenic production of additional quantities of greenhouse gases (GHG). The conclusions of the IP ...
Summary for Policy Makers
... anthropogenic greenhouse gas concentrations. This is an advance since the TAR’s conclusion that “most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations”. Discernible human influences now extend to other aspects of climate, incl ...
... anthropogenic greenhouse gas concentrations. This is an advance since the TAR’s conclusion that “most of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations”. Discernible human influences now extend to other aspects of climate, incl ...
Sample Chapter - Brookings Institution
... too small to be identified as a trend. Then, around 1970, scientists began to close ranks around the suspicion that something new and worrisome was happening. In 1988 the World Meteorological Organization and the United Nations Environment Program established the Intergovernmental Panel on Climate C ...
... too small to be identified as a trend. Then, around 1970, scientists began to close ranks around the suspicion that something new and worrisome was happening. In 1988 the World Meteorological Organization and the United Nations Environment Program established the Intergovernmental Panel on Climate C ...
Geochemists Chart Carbon-Dioxide Levels At 650000
... • Researchers expect 2007 to end among the warmest years on record. In May, an international research consortium, led by the Global Carbon Project2, reported in "The Proceedings of the National Academy of Sciences" that CO2 emissions from burning fossil fuels and industrial activity has accelerated ...
... • Researchers expect 2007 to end among the warmest years on record. In May, an international research consortium, led by the Global Carbon Project2, reported in "The Proceedings of the National Academy of Sciences" that CO2 emissions from burning fossil fuels and industrial activity has accelerated ...
presentation
... Although models unanimously indicate a warmer climate, they are undecided if it will get wetter or dry out 6 different climate models 5 emission scenarios, IPCC SRES runs ...
... Although models unanimously indicate a warmer climate, they are undecided if it will get wetter or dry out 6 different climate models 5 emission scenarios, IPCC SRES runs ...
20070124_Science_Cafe
... Deforestation of North America Fossil fuel emission Change from coal to oil economy Clean air act? ...
... Deforestation of North America Fossil fuel emission Change from coal to oil economy Clean air act? ...
The Greenhouse Effect and the Ecological
... trees survived the end of the last glacial period through slow migration northwards. Since trees can only migrate by dropping seeds in the preferred direction, tree migration is a painfully slow business - with maximum rates of about 40 km per century. In North America, the migration northwards was ...
... trees survived the end of the last glacial period through slow migration northwards. Since trees can only migrate by dropping seeds in the preferred direction, tree migration is a painfully slow business - with maximum rates of about 40 km per century. In North America, the migration northwards was ...
The Great Global Warming Swindle: Critique by John
... Here I briefly point out the main lines of evidence for human-induced climate change and then address some of the main arguments presented in the programme. 1. First, it is important to note that the main lines of evidence for humaninduced climate change not addressed in the programme were: • growt ...
... Here I briefly point out the main lines of evidence for human-induced climate change and then address some of the main arguments presented in the programme. 1. First, it is important to note that the main lines of evidence for humaninduced climate change not addressed in the programme were: • growt ...
Global Climate Change
... Recent research shows that human activities have lifted the boundary of Earth's lower atmosphere. Known as the troposphere (from the Greek tropos, which means "turning"), this lowest layer of the atmosphere contains Earth's weather. The stable layer above is called the stratosphere. The boundary tha ...
... Recent research shows that human activities have lifted the boundary of Earth's lower atmosphere. Known as the troposphere (from the Greek tropos, which means "turning"), this lowest layer of the atmosphere contains Earth's weather. The stable layer above is called the stratosphere. The boundary tha ...
How I Know - Astronomy Notes
... the past 800,000 years tied to the ice ages, the decreasing ratio of carbon-13 to carbon-12 isotopes over time show that the recent increase in carbon dioxide this past century is due to fossil fuel burning and not some natural fluctuation cycle. Other signals such as decreasing oxygen content, decr ...
... the past 800,000 years tied to the ice ages, the decreasing ratio of carbon-13 to carbon-12 isotopes over time show that the recent increase in carbon dioxide this past century is due to fossil fuel burning and not some natural fluctuation cycle. Other signals such as decreasing oxygen content, decr ...
3.3-Global-Climate-Change
... Amount of sun reaching Earth varies- solar storms occur every few years, dumping huge amounts of energy into the atmosphere If solar storms were the cause of increased global temps, we would see temps increasing most in the summer and nearest to the equator (most sunlight) Not consistent with da ...
... Amount of sun reaching Earth varies- solar storms occur every few years, dumping huge amounts of energy into the atmosphere If solar storms were the cause of increased global temps, we would see temps increasing most in the summer and nearest to the equator (most sunlight) Not consistent with da ...
Can`t we agree to do something about climate change?
... starting now to do something about it. The science, endorsed by NASA and the NOAA, among other credible scientific groups, clearly shows that the climate is changing and that humans, while not the sole reason, certainly have a hand in it. The average global temperature has risen by more than 1.4 deg ...
... starting now to do something about it. The science, endorsed by NASA and the NOAA, among other credible scientific groups, clearly shows that the climate is changing and that humans, while not the sole reason, certainly have a hand in it. The average global temperature has risen by more than 1.4 deg ...
Global Warming: Will Human-Induced Climate Change Destroy the
... greenhouse gases in the atmosphere ,the greenhouse effect would become stronger, which is called “enhanced greenhouse effect”. And with greenhouse effect being enhanced, the earth would be warmer than usual. ...
... greenhouse gases in the atmosphere ,the greenhouse effect would become stronger, which is called “enhanced greenhouse effect”. And with greenhouse effect being enhanced, the earth would be warmer than usual. ...
Do now! - MrSimonPorter
... alarmist. As a climatologist/seismologist working on glacial seismic activity in the Jakobshavn glacier basin - precisely the area your reporter mentions - I know that local earthquakes (or glacial quakes) are actually fairly common in the area and have been for a long time. I also know that there i ...
... alarmist. As a climatologist/seismologist working on glacial seismic activity in the Jakobshavn glacier basin - precisely the area your reporter mentions - I know that local earthquakes (or glacial quakes) are actually fairly common in the area and have been for a long time. I also know that there i ...
Climate Change
... Climate Change - What happened to the Science? The ‘debate’ continues to rage. The Abbott government and the Murdoch media (mostly) claim that climate change is not a threat – at least not yet, while the Fairfax/ABC/Guardian side warns that it is. What’s missing in all this? The SCIENCE of clima ...
... Climate Change - What happened to the Science? The ‘debate’ continues to rage. The Abbott government and the Murdoch media (mostly) claim that climate change is not a threat – at least not yet, while the Fairfax/ABC/Guardian side warns that it is. What’s missing in all this? The SCIENCE of clima ...
Studying Climate Change: Proxy Indicators
... • Greenhouse gases have always been in the atmosphere • We are not worried about the natural greenhouse effect (we need it) – Anthropogenic increase is worrisome ...
... • Greenhouse gases have always been in the atmosphere • We are not worried about the natural greenhouse effect (we need it) – Anthropogenic increase is worrisome ...
Climate Change: Lines of Evidence video questions
... 1. All of these data show that average earth surface temperatures have increased by _________ oF over the last 100 years, with much of this increase taking place over the last ________years. 2. Other indicators of global warming? What changes have occurred? a. Heat waves? ...
... 1. All of these data show that average earth surface temperatures have increased by _________ oF over the last 100 years, with much of this increase taking place over the last ________years. 2. Other indicators of global warming? What changes have occurred? a. Heat waves? ...
Chapter 9: Carbon Dioxide Test bank questions Multiple Choice 1
... 1. The _______ was enacted in order to reduce the concentration of CFCs in the atmosphere. a. Kyoto Protocol b. Montreal Protocol c. US Conference of Mayors’ Climate Protection Agreement 2. A market environmentalist would most likely support _______ as a solution to address ...
... 1. The _______ was enacted in order to reduce the concentration of CFCs in the atmosphere. a. Kyoto Protocol b. Montreal Protocol c. US Conference of Mayors’ Climate Protection Agreement 2. A market environmentalist would most likely support _______ as a solution to address ...
APES CH19 Overview
... B. Geologic records and atmospheric measurements provide a wealth of information about past atmospheric temperatures and climate. On average, over the past 900,000 years, there has been a cycle of global cooling and global warming. The cycles are known as glacial and interglacial periods. 19-2 Why ...
... B. Geologic records and atmospheric measurements provide a wealth of information about past atmospheric temperatures and climate. On average, over the past 900,000 years, there has been a cycle of global cooling and global warming. The cycles are known as glacial and interglacial periods. 19-2 Why ...
Summary for Policy Makers - Apollo
... thickest areas of ridged ice have lost more than ¾ of their depth in the same period. Complete loss of Arctic sea ice in late summer is now expected during the 2030’s, way in advance of any model predictions. The process is driven by climate feedback, and also drives climate feedbacks. The change fr ...
... thickest areas of ridged ice have lost more than ¾ of their depth in the same period. Complete loss of Arctic sea ice in late summer is now expected during the 2030’s, way in advance of any model predictions. The process is driven by climate feedback, and also drives climate feedbacks. The change fr ...
Scientific background of climate negotiations
... What can be expected? • For the next two decades a warming of about 0.2°C per decade is projected for a range of SRES emission scenarios. • Anthropogenic warming and sea level rise would continue for centuries due to the timescales associated with climate processes and feedbacks, even if greenhouse ...
... What can be expected? • For the next two decades a warming of about 0.2°C per decade is projected for a range of SRES emission scenarios. • Anthropogenic warming and sea level rise would continue for centuries due to the timescales associated with climate processes and feedbacks, even if greenhouse ...
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.""