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Global Climate Change Position Statement
However, comprehensive scientific assessments of our current and potential future climates clearly indicate that climate change is real, largely attributable to emissions from human activities, and potentially a very serious problem. This sober conclusion has been recently reconfirmed by an in-depth set of studies focused on Americas Climate Choices (ACC) conducted by the U.S. National Academies (NRC, 2010a, b, c, d). The ACC studies, performed by independent and highly respected teams of scientists, engineers, and other skilled professionals, reached the same general conclusions that were published in the latest comprehensive assessment conducted by the International Panel on Climate Change (IPCC, 2007). Recently, some errors in the IPCC (2007) reports have been acknowledged and questions about the transparency of the IPCC process have been raised. An independent review by the InterAcademy Council (IAC), a collaboration of the worlds leading national science academies, found that the IPCC assessment process has been successful overall and has served society well, and that through its unique partnership between scientists and governments, the IPCC has heightened public awareness of climate change, raised the level of scientific debate, and influenced the science agendas of many nations. (IAC, 2010) The IAC also recommended managerial and procedural improvements that would strengthen future assessments.
Texas climatologist: Global temperatures ?likely? to set a new record this year | SciGuy | a Chron.com blog
The Texas state climatologist — the top climate official in one of the most conservative states in the country — has predicted that this year probably will be the warmest on record.
In his periodic report on Texas weather and crops released this week, Texas A&M University atmospheric scientist John Nielsen-Gammon said:
“Global temperatures have been relatively flat for the past several years. Some people use that information to try to imply that global warming has stopped. But it turns out that the factors causing global warming are still there, it’s just that the El Niño-La Niña cycle has temporarily trended cooler and has partially masked the warming. In the tropical Pacific, there’s actually fairly cold water just below the surface. With a La Niña event, that cold water is drawn all the way up to the surface, and interacts with the atmosphere and causes it to be cooler. If you leave the refrigerator door open, the room will be a little cooler. If my forecast is correct, and there’s no La Niña to hide the underlying warming trend, global surface temperatures are likely to increase and set a new record this year.”
He may well be right.
A quick check of the 10 warmest years on record, based upon data going back to 1880, shows that 2010 was the warmest year on record, followed by 2005. Last year was the 10th warmest.
The last two years, as shown in the chart below, were La Nina years so we would expect them to be a bit cooler. The most recent El Nino year, 2010, was the warmest overall year on record.
The significance of this prediction is that it’s coming from Nielsen-Gammon, who was appointed by George W. Bush back in 2000 when he was still the governor. He has continued to serve under Gov. Rick Perry for the last 12 years.
Climate change | Royal Society
Background
It is certain that increased greenhouse gas emissions from the burning of fossil fuels and from land use change lead to a warming of climate, and it is very likely that these green house gases are the dominant cause of the global warming that has been taking place over the last 50 years.
Whilst the extent of climate change is often expressed in a single figure global temperature the effects of climate change (such as temperature, precipitation and the frequency of extreme weather events) will vary greatly from place to place.
Increasing atmospheric CO2 also leads to ocean acidification which risks profound impacts on many marine ecosystems and in turn the societies which depend on them.
The Society has worked on the issue of climate change for many years to further the understanding of this issue. These activities have been informed by decades of publicly available, peer-reviewed studies by thousands of scientists across a wide range of disciplines. Climate science, like any other scientific discipline, develops through vigorous debates between experts, but there is an overwhelming consensus regarding its fundamentals. Climate science has a firm basis in physics and is supported by a wealth of evidence from real world observations. Our work has taken the following forms:
AAAS - AAAS News Release
The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society. Accumulating data from across the globe reveal a wide array of effects: rapidly melting glaciers, destabilization of major ice sheets, increases in extreme weather, rising sea level, shifts in species ranges, and more. The pace of change and the evidence of harm have increased markedly over the last five years. The time to control greenhouse gas emissions is now.
The atmospheric concentration of carbon dioxide, a critical greenhouse gas, is higher than it has been for at least 650,000 years. The average temperature of the Earth is heading for levels not experienced for millions of years. Scientific predictions of the impacts of increasing atmospheric concentrations of greenhouse gases from fossil fuels and deforestation match observed changes. As expected, intensification of droughts, heat waves, floods, wildfires, and severe storms is occurring, with a mounting toll on vulnerable ecosystems and societies. These events are early warning signs of even more devastating damage to come, some of which will be irreversible.
got you upset didnt we? prove it.. show me a fucking test planet that dont haved humans on it?????
AAAS - AAAS News Release
The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society. Accumulating data from across the globe reveal a wide array of effects: rapidly melting glaciers, destabilization of major ice sheets, increases in extreme weather, rising sea level, shifts in species ranges, and more. The pace of change and the evidence of harm have increased markedly over the last five years. The time to control greenhouse gas emissions is now.
The atmospheric concentration of carbon dioxide, a critical greenhouse gas, is higher than it has been for at least 650,000 years. The average temperature of the Earth is heading for levels not experienced for millions of years. Scientific predictions of the impacts of increasing atmospheric concentrations of greenhouse gases from fossil fuels and deforestation match observed changes. As expected, intensification of droughts, heat waves, floods, wildfires, and severe storms is occurring, with a mounting toll on vulnerable ecosystems and societies. These events are early warning signs of even more devastating damage to come, some of which will be irreversible.
got you upset didnt we? prove it.. show me a fucking test planet that dont haved humans on it?????
Seriously? this is where the debate has devolved? Test planets? WTF?
