15-Climate_Change
... The ‘instrumental’ record of climate shows a ~1ºC warming over the last century ...
... The ‘instrumental’ record of climate shows a ~1ºC warming over the last century ...
Seasonal Outlook Briefing
... • Why you should care about climate change • Recent Climate Changes (focus on Australia & last 50 years): • Human climate drivers - CO2 (the main GHG) • Temperature • Rainfall • Sea level • Looking to the future of climate change Most of the observed increase in globally averaged temperatures since ...
... • Why you should care about climate change • Recent Climate Changes (focus on Australia & last 50 years): • Human climate drivers - CO2 (the main GHG) • Temperature • Rainfall • Sea level • Looking to the future of climate change Most of the observed increase in globally averaged temperatures since ...
Ch 13 Sec 3 Global Warming
... How Certain is Global Warming? • However, not all scientists agree that the observed global warming is due to greenhouse gases. • Some scientists believe that the warming is part of natural climatic variability. • They point out that widespread fluctuations in temperature have occurred throughout g ...
... How Certain is Global Warming? • However, not all scientists agree that the observed global warming is due to greenhouse gases. • Some scientists believe that the warming is part of natural climatic variability. • They point out that widespread fluctuations in temperature have occurred throughout g ...
Climate Control and Ozone Depletion
... Governments Can Enter into International Climate Negotiations: The Kyoto Protocol • 1997: Treaty to slow climate change • The Kyoto Protocol – Reduce emissions of CO2, CH4, and N2O by 2012 to levels of ...
... Governments Can Enter into International Climate Negotiations: The Kyoto Protocol • 1997: Treaty to slow climate change • The Kyoto Protocol – Reduce emissions of CO2, CH4, and N2O by 2012 to levels of ...
15.Globalwarming2
... Long-term change can be assessed from ice cores, which record annual cycles of ice formation from snow. ...
... Long-term change can be assessed from ice cores, which record annual cycles of ice formation from snow. ...
Certain uncertainty
... colder temperatures. The WMO report notes that 2010 was not only the warmest year on record, but also the wettest globally. Floods were the most frequent extreme events during 2001–2010, and this trend appears to be continuing; so far this year we have seen significant floods in eastern Australia, c ...
... colder temperatures. The WMO report notes that 2010 was not only the warmest year on record, but also the wettest globally. Floods were the most frequent extreme events during 2001–2010, and this trend appears to be continuing; so far this year we have seen significant floods in eastern Australia, c ...
Sydney Opera House and Statue of Liberty `will be lost to sea
... level rises, partly because of low-lying, densely populated cities, but also because sea level rises will be the most extreme there. The UN's climate science panel, the IPCC, said in a landmark report last September that it expects sea level rises of 26-82cm by 2100 although there is no scientific c ...
... level rises, partly because of low-lying, densely populated cities, but also because sea level rises will be the most extreme there. The UN's climate science panel, the IPCC, said in a landmark report last September that it expects sea level rises of 26-82cm by 2100 although there is no scientific c ...
Is Climate Really Predictable on 10-50 Year Time Scales?
... The solid line depicts monthly concentrations of atmospheric CO2 at Mauna Loa Observatory, Hawaii. The yearly oscillation is explained mainly by the annual cycle of photosynthesis and respiration of plants in the northern hemisphere. The steadily increasing concentration of atmospheric CO2 at Mauna ...
... The solid line depicts monthly concentrations of atmospheric CO2 at Mauna Loa Observatory, Hawaii. The yearly oscillation is explained mainly by the annual cycle of photosynthesis and respiration of plants in the northern hemisphere. The steadily increasing concentration of atmospheric CO2 at Mauna ...
The Kyoto Protocol and Global Warming - Imprimis
... lesser human-made global warming trend than is forecast by climate simulations. According to these simulations, a readily detectable warming of the lower troposphere (roughly 5,000 to 28,000 feet altitude) must occur with the presence of increased atmospheric carbon dioxide concentration. But record ...
... lesser human-made global warming trend than is forecast by climate simulations. According to these simulations, a readily detectable warming of the lower troposphere (roughly 5,000 to 28,000 feet altitude) must occur with the presence of increased atmospheric carbon dioxide concentration. But record ...
Trenberth Italy0708-moved
... ppmv are over 36% higher than pre-industrial values of 280 ppmv and over half that increase has occurred since 1970 (Fig.1). Of particular note is the clear evidence that carbon dioxide concentrations are increasing at rates beyond the highest of the IPCC scenarios in spite of the Kyoto Protocol, su ...
... ppmv are over 36% higher than pre-industrial values of 280 ppmv and over half that increase has occurred since 1970 (Fig.1). Of particular note is the clear evidence that carbon dioxide concentrations are increasing at rates beyond the highest of the IPCC scenarios in spite of the Kyoto Protocol, su ...
Climate Scientists Agree on Warming, Disagree on
... during the past century. Eightyfour percent say they personally believe humaninduced warming is occurring, and 74% agree that “currently available scientific evidence” substantiates its occurrence. Only 5% believe that that human activity does not contribute to greenhouse warming; the rest are uns ...
... during the past century. Eightyfour percent say they personally believe humaninduced warming is occurring, and 74% agree that “currently available scientific evidence” substantiates its occurrence. Only 5% believe that that human activity does not contribute to greenhouse warming; the rest are uns ...
IEAGHG Information Paper 2016-IP41: 1.5 Degrees – Meeting the
... temperature, or the other way round. We also need to consider we might cross some tipping points irreversibly, especially when allowing for an overshoot. A second fact check reveals we have achieved no decarbonisation of the electricity sector at all because the growth in energy demand completely o ...
... temperature, or the other way round. We also need to consider we might cross some tipping points irreversibly, especially when allowing for an overshoot. A second fact check reveals we have achieved no decarbonisation of the electricity sector at all because the growth in energy demand completely o ...
Global Climate Change: Past and Future
... terms of natural climate variability •Recent surface warming is largely consistent with simulations of the effects of anthropogenic influence on climate •Possible impacts of anthropogenic climate change this century include increased drought conditions in the western U.S. and more destructive Atlant ...
... terms of natural climate variability •Recent surface warming is largely consistent with simulations of the effects of anthropogenic influence on climate •Possible impacts of anthropogenic climate change this century include increased drought conditions in the western U.S. and more destructive Atlant ...
Bjorn Lomborg: Global priorities bigger than climate change
... The problem about dealing with climate change is that it’s too expensive, but does so little for the future, we might win just a few years time. The very best project to focus on would be HIV/AIDS – especially because it would be wise to focus on the prevention, which is also going to cost less ...
... The problem about dealing with climate change is that it’s too expensive, but does so little for the future, we might win just a few years time. The very best project to focus on would be HIV/AIDS – especially because it would be wise to focus on the prevention, which is also going to cost less ...
3.1 – Intro to Climate Change
... climate has changed many times since Earth formed o see Figure 3.2 on p. 196 since 1880, Earth’s climate has changed quicker than ever o see Figure 3.4 on p. 198 ...
... climate has changed many times since Earth formed o see Figure 3.2 on p. 196 since 1880, Earth’s climate has changed quicker than ever o see Figure 3.4 on p. 198 ...
IPCC Average global temperature has increased 0.8°C since 1906.
... of temperatures has a much larger relative effect at the extremes than near the mean. ...
... of temperatures has a much larger relative effect at the extremes than near the mean. ...
7. Global Warming Phenomenon, An Impending Catastrophe?
... IPCC anticipates a warming of 1.1oC -6.4oC (2oF-11.5oF) between 1990 and 2100. They also used these models to investigate the causes of recent climate change by comparing the observed changes to those that the models predict from various natural and human derived forcing factors. Climate models can ...
... IPCC anticipates a warming of 1.1oC -6.4oC (2oF-11.5oF) between 1990 and 2100. They also used these models to investigate the causes of recent climate change by comparing the observed changes to those that the models predict from various natural and human derived forcing factors. Climate models can ...
the environment of the world as we know it is slowly, but
... stating that "the environment of the world as we know it is slowly, but very surely increasing in overall air and water temperature" ("What is global"). But is it? Many studies support the theory that the Earth is warming. "The rate of warming is increasing. The 20th century's last two decades were ...
... stating that "the environment of the world as we know it is slowly, but very surely increasing in overall air and water temperature" ("What is global"). But is it? Many studies support the theory that the Earth is warming. "The rate of warming is increasing. The 20th century's last two decades were ...
Bellringer
... atmosphere. • Millions of tons of carbon dioxide are released into the atmosphere each year from power plant and car emissions. • Millions of trees are burned in tropical rainforest to clear the land for farming. • We also release other greenhouse gases, such as CFCs, methane, and nitrous oxide, in ...
... atmosphere. • Millions of tons of carbon dioxide are released into the atmosphere each year from power plant and car emissions. • Millions of trees are burned in tropical rainforest to clear the land for farming. • We also release other greenhouse gases, such as CFCs, methane, and nitrous oxide, in ...
Fun Facts: Climate Change
... The greenhouse traps the sun's rays and keeps the heat from escaping. It is warm inside. In the same way that the glass traps heat in a greenhouse, the atmosphere traps heat next to the earth. The atmosphere is a thin layer of gases surrounding the earth. Certain gases in the atmosphere such as carb ...
... The greenhouse traps the sun's rays and keeps the heat from escaping. It is warm inside. In the same way that the glass traps heat in a greenhouse, the atmosphere traps heat next to the earth. The atmosphere is a thin layer of gases surrounding the earth. Certain gases in the atmosphere such as carb ...
GGP3015 CLIMATIC CHANGE: Recent and future
... How much has global temperature risen over the past 100 years? ...
... How much has global temperature risen over the past 100 years? ...
What is global warming and what are the dangers associated with it?
... The greenhouse effect can be defined as being the blanketing effect of greenhouse gases, such as carbon dioxide, carbon monoxide and sulphates, in the atmosphere [3]. This leads to the Earth being warmer than it would otherwise be, and, leads to a temperature increase of about 33 degrees centigrade ...
... The greenhouse effect can be defined as being the blanketing effect of greenhouse gases, such as carbon dioxide, carbon monoxide and sulphates, in the atmosphere [3]. This leads to the Earth being warmer than it would otherwise be, and, leads to a temperature increase of about 33 degrees centigrade ...
Global warming hiatus
A global warming hiatus, also sometimes referred to as a global warming pause or a global warming slowdown, is a period of relatively little change in globally averaged surface temperatures. In the current episode of global warming many such periods are evident in the surface temperature record, along with robust evidence of the long term warming trend.The exceptionally warm El Niño year of 1998 was an outlier from the continuing temperature trend, and so gave the appearance of a hiatus: by January 2006 assertions had been made that this showed that global warming had stopped. A 2009 study showed that decades without warming were not exceptional, and in 2011 a study showed that if allowances were made for known variability, the rising temperature trend continued unabated. There was increased public interest in 2013 in the run-up to publication of the IPCC Fifth Assessment Report, and despite concerns that a 15-year period was too short to determine a meaningful trend, the IPCC included a section on a hiatus, which it defined as a much smaller increasing linear trend over the 15 years from 1998 to 2012, than over the 60 years from 1951 to 2012. Various studies examined possible causes of the short term slowdown. Even though the overall climate system had continued to accumulate energy due to Earth's positive energy budget, the available temperature readings at the earth's surface indicated slower rates of increase in surface warming than in the prior decade. Since measurements at the top of the atmosphere show that Earth is receiving more energy than it is radiating back into space, the retained energy should be producing warming in at least one of the five parts of Earth's climate system.A July 2015 paper on the updated NOAA dataset cast doubt on the existence of this supposed hiatus, and found no indication of a slowdown. This analysis incorporated the latest corrections for known biases in ocean temperature measurements, and new land temperature data. Scientists working on other datasets welcomed this study, though the view was expressed that the short term warming trend had been slower than in previous periods of the same length.