Is the melting Arctic changing midlatitude weather?
... When the polar vortex is strong, driven by a large north– south pressure gradient, so are the westerly winds. But as the vortex weakens, wind directions can shift and meander north and south. A wavier jet stream thus has the potential to bring cold air to midlatitudes and warm air northward. Because ...
... When the polar vortex is strong, driven by a large north– south pressure gradient, so are the westerly winds. But as the vortex weakens, wind directions can shift and meander north and south. A wavier jet stream thus has the potential to bring cold air to midlatitudes and warm air northward. Because ...
- It works! - San Francisco State University
... earlier, and more well-known, period of ‘global dimming’ in which large decreases in the intensity of solar radiation were observed in many surface records7. There is disagreement as to the ultimate cause of these changes in the surface light ...
... earlier, and more well-known, period of ‘global dimming’ in which large decreases in the intensity of solar radiation were observed in many surface records7. There is disagreement as to the ultimate cause of these changes in the surface light ...
Toronto Environment Office: Toronto`s Future Weather and Climage
... climate change continues for more than 1000 years, and even on these timescales temperatures and sea levels do not return to preindustrial levels. The uptake of CO2 by the oceans and creation of calcium carbonate sediments takes place over 30,000 – 35,000 years. CO2 emissions would need to be reduce ...
... climate change continues for more than 1000 years, and even on these timescales temperatures and sea levels do not return to preindustrial levels. The uptake of CO2 by the oceans and creation of calcium carbonate sediments takes place over 30,000 – 35,000 years. CO2 emissions would need to be reduce ...
Impacts of warming
... Land ecosystems and agriculture: A warming world combined with changes in the amount of carbon dioxide in the atmosphere (with increases potentially enabling faster growth of vegetation) presents a more complex picture for future impacts on crop yields and ecosystems such as forests, as well as the ...
... Land ecosystems and agriculture: A warming world combined with changes in the amount of carbon dioxide in the atmosphere (with increases potentially enabling faster growth of vegetation) presents a more complex picture for future impacts on crop yields and ecosystems such as forests, as well as the ...
Did global warming stop in
... was the first year claimed by skeptics for 'Global Cooling'. Then 1995 followed by 2002. Skeptics have also emphasized the year 2007-2008 and most recently the last half of 2010. NASA and climate scientists throughout the world have said, however, that the years starting since 1998 have been the hott ...
... was the first year claimed by skeptics for 'Global Cooling'. Then 1995 followed by 2002. Skeptics have also emphasized the year 2007-2008 and most recently the last half of 2010. NASA and climate scientists throughout the world have said, however, that the years starting since 1998 have been the hott ...
The Data Behind Climate Change-
... about climate science (i.e., An Inconvenient Truth). In our class, this lesson will be preceded by a lesson explaining different climate proxies, and how scientists can get information about temperatures and atmospheric conditions thousands of years ago. Teaching Tips: Some of the graphs may be diff ...
... about climate science (i.e., An Inconvenient Truth). In our class, this lesson will be preceded by a lesson explaining different climate proxies, and how scientists can get information about temperatures and atmospheric conditions thousands of years ago. Teaching Tips: Some of the graphs may be diff ...
An Overview of Canada`s Changing Climate Contents of the 2014
... erosion in parts of Canada. • Reduced sea-ice cover is expected to contribute to extreme water levels and coastal erosion in some regions of Arctic and Atlantic Canada. • Increased storminess is also expected to contribute to increased extreme water levels and coastal erosion, but projections are eq ...
... erosion in parts of Canada. • Reduced sea-ice cover is expected to contribute to extreme water levels and coastal erosion in some regions of Arctic and Atlantic Canada. • Increased storminess is also expected to contribute to increased extreme water levels and coastal erosion, but projections are eq ...
ELA Seventh Grade Common Final Exam
... pointed to the North Pole and told her students about the cold jet stream of air that usually circulates around the top of the earth. Sometimes, she said, the jet stream weakens, and when that happens, the cold air slips down south. So the cold winds can potentially hit the United States, Europe, an ...
... pointed to the North Pole and told her students about the cold jet stream of air that usually circulates around the top of the earth. Sometimes, she said, the jet stream weakens, and when that happens, the cold air slips down south. So the cold winds can potentially hit the United States, Europe, an ...
Certain uncertainty
... the jet stream sits to the north it brings the warm weather from the lower latitudes. Conversely, if the jet stream meanders to the south it can bring unsettled weather and colder temperatures. The WMO report notes that 2010 was not only the warmest year on record, but also the wettest globally. Flo ...
... the jet stream sits to the north it brings the warm weather from the lower latitudes. Conversely, if the jet stream meanders to the south it can bring unsettled weather and colder temperatures. The WMO report notes that 2010 was not only the warmest year on record, but also the wettest globally. Flo ...
In a Hotter World, Economies May Melt Down
... world without climate change. Other estimates are twice as high. The likelihood of global economic losses larger than 20 percent of current income is at least 40 percent, and much higher in some scenarios. These estimates are substantially larger than existing models indicate, a difference the rese ...
... world without climate change. Other estimates are twice as high. The likelihood of global economic losses larger than 20 percent of current income is at least 40 percent, and much higher in some scenarios. These estimates are substantially larger than existing models indicate, a difference the rese ...
File - Down the Rabbit Hole
... • Refers to the relative ability of one molecule of a given greenhouse gas to contribute to warming. • Values are expressed in relation to CO2, which is assigned a global warming potential of 1. ...
... • Refers to the relative ability of one molecule of a given greenhouse gas to contribute to warming. • Values are expressed in relation to CO2, which is assigned a global warming potential of 1. ...
The Extremes Become the Norm
... normal temperature distribution. In fact, this April marked the 338th consecutive month that has recorded an above-average temperature. The last below-average temperature for any month was in February of 1985, more than 28 years ago.ii Further, in 2012 alone, 362 sites in the United States experienc ...
... normal temperature distribution. In fact, this April marked the 338th consecutive month that has recorded an above-average temperature. The last below-average temperature for any month was in February of 1985, more than 28 years ago.ii Further, in 2012 alone, 362 sites in the United States experienc ...
Concept Review
... falling object will show the object picks up more and more speed with each passing second. This is easy to prove by rolling a ball downhill. Friction notwithstanding, the ball will roll faster and faster the further it rolls. Many scientists have used this analogy when describing global warming in A ...
... falling object will show the object picks up more and more speed with each passing second. This is easy to prove by rolling a ball downhill. Friction notwithstanding, the ball will roll faster and faster the further it rolls. Many scientists have used this analogy when describing global warming in A ...
Summary: Rapid Climate Change
... • These rapid climate change events are strongest in the N. Atlantic, but some evidence that they occurred globally. • Generally, there is an anti-phasing of temperature fluctuations between N. and S. Hemispheres. ...
... • These rapid climate change events are strongest in the N. Atlantic, but some evidence that they occurred globally. • Generally, there is an anti-phasing of temperature fluctuations between N. and S. Hemispheres. ...
Climate Change through time
... L.O. To describe how the earth’s climate has changed through time. ...
... L.O. To describe how the earth’s climate has changed through time. ...
Extremes (M. Wehner, LLNL and UC Berkeley)
... value of the winter daily precipitation (mm/day) CMIP5 class models are not high enough resolution. Picture is much worse for summer due to defects in convective parameterizations. ...
... value of the winter daily precipitation (mm/day) CMIP5 class models are not high enough resolution. Picture is much worse for summer due to defects in convective parameterizations. ...
Extreme Temperatures
... Extreme temperature includes both heat and cold events, which can have a significant impact to human health, commercial/agricultural businesses and primary and secondary effects on infrastructure (e.g., burst pipes and power failure). What constitutes “extreme cold” or “extreme heat” can vary across ...
... Extreme temperature includes both heat and cold events, which can have a significant impact to human health, commercial/agricultural businesses and primary and secondary effects on infrastructure (e.g., burst pipes and power failure). What constitutes “extreme cold” or “extreme heat” can vary across ...
The Outside Story - Northern Woodlands
... of mixed tree species at different elevations. This was not easy work – imagine drawing the short straw and trudging out to the study plots after every snowfall – but it yielded some clear consequences of soil freezing. The shoveled plots that experienced soil freezing had higher levels of nutrients ...
... of mixed tree species at different elevations. This was not easy work – imagine drawing the short straw and trudging out to the study plots after every snowfall – but it yielded some clear consequences of soil freezing. The shoveled plots that experienced soil freezing had higher levels of nutrients ...
St. Francis Xavier University Third Year Biology Courses
... Every animal’s physiological functions are linked to temperature. The temperature range for an organism has shaped its enzyme evolution so that the optimum temperature reflects that temperature at which its enzymes are fully functional (i.e., its metabolism operates most efficiently at this temperat ...
... Every animal’s physiological functions are linked to temperature. The temperature range for an organism has shaped its enzyme evolution so that the optimum temperature reflects that temperature at which its enzymes are fully functional (i.e., its metabolism operates most efficiently at this temperat ...
climate_change_pt2
... increased 0.7o to 0.8o C during this period. The increase hasn't been steady as you might have expected given the steady rise in CO2 concentration; temperature even decreased slightly between about 1940 and 1970. It is very difficult to detect a temperature change this small over this period of time ...
... increased 0.7o to 0.8o C during this period. The increase hasn't been steady as you might have expected given the steady rise in CO2 concentration; temperature even decreased slightly between about 1940 and 1970. It is very difficult to detect a temperature change this small over this period of time ...
Key Questions about Climate Change
... Solar output has showed little or no upward trend since 1978, when satellites began measurement, only periodic variation of less than 0.1% in 11 yr. cycles. Earlier records of sunspot activity (related to solar output) suggest an increase in solar radiation dating back ~two centuries, but not recent ...
... Solar output has showed little or no upward trend since 1978, when satellites began measurement, only periodic variation of less than 0.1% in 11 yr. cycles. Earlier records of sunspot activity (related to solar output) suggest an increase in solar radiation dating back ~two centuries, but not recent ...
Seasonal trends and temperature dependence of the snowfall
... winter and spring. This decrease was clearly more pronounced at lower than at higher elevation. This is because the temperature is more frequently close to the melting point at lower elevations. It will be even more so in a warmer climate. SD/PD’s would be expected to decrease much less at higher al ...
... winter and spring. This decrease was clearly more pronounced at lower than at higher elevation. This is because the temperature is more frequently close to the melting point at lower elevations. It will be even more so in a warmer climate. SD/PD’s would be expected to decrease much less at higher al ...
The Earth`s Climate and Climate Change
... Temperature change is often reported as the “temperature anomaly,” which is the temperature compared to the average over some time period. ...
... Temperature change is often reported as the “temperature anomaly,” which is the temperature compared to the average over some time period. ...
Study Guide II (Chpts 4 - 6, Christopherson)
... earth (Global Warming). If the earth warms up by even 1 or 2 degrees our climate will change dramatically and ice caps could melt, sea levels rise, and coastal cities flood. Temperatures could rise as much as 5°C by the end of this century – we need to reduce our consumption of fossil fuels and our ...
... earth (Global Warming). If the earth warms up by even 1 or 2 degrees our climate will change dramatically and ice caps could melt, sea levels rise, and coastal cities flood. Temperatures could rise as much as 5°C by the end of this century – we need to reduce our consumption of fossil fuels and our ...
3.2 Climate and Precipitation - Hudson River Sloop Clearwater
... More specifically, annual average temperatures in New York State and the Hudson Valley have increased 2 degrees and winters in New York State are almost 5 degrees warmer than they were in the 1970’s3. More recently, 2010 from January to August is tied with 1998 as the warmest year on record. Tempera ...
... More specifically, annual average temperatures in New York State and the Hudson Valley have increased 2 degrees and winters in New York State are almost 5 degrees warmer than they were in the 1970’s3. More recently, 2010 from January to August is tied with 1998 as the warmest year on record. Tempera ...
Early 2014 North American cold wave
The 2014 North American cold wave was an extreme weather event extending from January to April 2014, and was also part of an unusually cold winter affecting parts of Canada and the Eastern United States. The event occurred in early 2014 and was caused by a southward shift of the North Polar Vortex. Record low temperatures also extended well into March.On January 2, an Arctic cold front initially associated with a nor'easter tracked across Canada and the United States, resulting in heavy snowfall. Temperatures fell to unprecedented levels, and low temperature records were broken across the United States. Business, school, and road closures were common, as well as mass flight cancellations. Altogether, more than 200 million people were affected, in an area ranging from the Rocky Mountains to the Atlantic Ocean and extending south to include roughly 187 million residents of the Continental United States.