Mt Everest Glacier's Melting (New York, Louisiana, percent, community)
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Also are you saying that Sandy was the worst ever storm to hit the east coast? "Ever"?!?! How in the world could this statement be justified?
If the graph above is accurate then the surges from 1635 and 1638 would be at least the same plus Sandy came ashore at the worst possible time as far as the tides went. I believe the estimate was that increased the surge as much as 20%.
Imagine if another Sandy came ashore 3 years from now, despite the historical record.......
No, we actually have pretty good estimates of weather data going back hundreds of thousands of years.
"In Antarctica, scientists have drilled down two miles below the surface and brought up samples of the ice. These samples are called ice cores.
The layers in an Arctic ice core are frozen solid. They give clues about every year of Earth's history back to the time the deepest layer was formed. The ice contains bubbles of the air from each year. Scientists analyze the bubbles in each layer to see how much CO2 they contain. Scientists can also learn about the temperatures for each year by measuring relative amounts of different types of oxygen atoms in the water. "
No one is arguing it's not changing. The "how" and "how much we are causing" is open for debate.
BTW, those ice cores can only give a relative estimate on gas percentages in the atmosphere, and then the margain of error for temperature is not exactly small. But if you are going to use the ice core data as evidence, then please explain the ice core data showing periods of our past when CO2 was higher than today, without our loathsome presence to cause it.
No one is arguing it's not changing. The "how" and "how much we are causing" is open for debate.
BTW, those ice cores can only give a relative estimate on gas percentages in the atmosphere, and then the margain of error for temperature is not exactly small. But if you are going to use the ice core data as evidence, then please explain the ice core data showing periods of our past when CO2 was higher than today, without our loathsome presence to cause it.
It hasn't been higher for the last 650,000 years or so.
Statements on climate change from scientific and government associations:
U.S. National Academy of Sciences
"The scientific understanding of climate change is now sufficiently clear to justify taking steps to reduce the amount of greenhouse gases in the atmosphere." (2005)
U.S. Global Change Research Program
"The global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases. Human 'fingerprints' also have been identified in many other aspects of the climate system, including changes in ocean heat content, precipitation, atmospheric moisture, and Arctic sea ice." (2009, 13 U.S. government departments and agencies)
American Association for the Advancement of Science
"Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research demonstrates that the greenhouse gases emitted by human activities are the primary driver." (2009)
"The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society." (2006)
American Chemical Society
"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." (2004)
American Geophysical Union
"The Earth's climate is now clearly out of balance and is warming. Many components of the climate system — including the temperatures of the atmosphere, land and ocean, the extent of sea ice and mountain glaciers, the sea level, the distribution of precipitation, and the length of seasons — are now changing at rates and in patterns that are not natural and are best explained by the increased atmospheric abundances of greenhouse gases and aerosols generated by human activity during the 20th century." (Adopted 2003, revised and reaffirmed 2007)
American Medical Association
"Our AMA ... supports the findings of the Intergovernmental Panel on Climate Change’s fourth assessment report and concurs with the scientific consensus that the Earth is undergoing adverse global climate change and that anthropogenic contributions are significant." (2013)
American Meteorological Society
"It is clear from extensive scientific evidence that the dominant cause of the rapid change in climate of the past half century is human-induced increases in the amount of atmospheric greenhouse gases, including carbon dioxide (CO2), chlorofluorocarbons, methane, and nitrous oxide." (2012)
American Physical Society
"The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earth’s physical and ecological systems, social systems, security and human health are likely to occur. We must reduce emissions of greenhouse gases beginning now." (2007)
The Geological Society of America
"The Geological Society of America (GSA) concurs with assessments by the National Academies of Science (2005), the National Research Council (2006), and the Intergovernmental Panel on Climate Change (IPCC, 2007) that global climate has warmed and that human activities (mainly greenhouse‐gas emissions) account for most of the warming since the middle 1900s." (2006; revised 2010)
Here's a great interactive time machine to view the earth's climate changes over the last 100 years: You can view temperature, sea level and other things.
Check out the interactive on sea level. If the Greenland ice sheets keep melting at the rate they are, take a look at which U.S. cities will be completely under water!
I don;t know about you but I prefer the adult web pages where this information is available. For example if you want to look at data on sea level trends:
------------------------------------
Linear mean sea level trends were calculated in overlapping 50-year increments for stations with sufficient historical data. The variability of each 50-year trend, with 95% confidence interval, is plotted against the mid-year of each 50-year period. The solid horizontal line represents the linear mean sea level trend using the entire period of record.
I don;t know about you but I prefer the adult web pages where this information is available. For example if you want to look at data on sea level trends:
------------------------------------
Linear mean sea level trends were calculated in overlapping 50-year increments for stations with sufficient historical data. The variability of each 50-year trend, with 95% confidence interval, is plotted against the mid-year of each 50-year period. The solid horizontal line represents the linear mean sea level trend using the entire period of record.
The data you posted shows that sea levels are rising.
The second graph shows that sea-levels have been rising an average of 2.77 mm per year. It is not showing a lack of sea level change, as the flat line would intuitively make you think. The second graph is showing that the trend of increasing sea level has not changed much over those years.
(Also, the NASA climate change pages for kids are great and perfect for communicating the realities of climate change to a lay audience, whether adults or children.)
Statements on climate change from scientific and government associations:
U.S. National Academy of Sciences
"The scientific understanding of climate change is now sufficiently clear to justify taking steps to reduce the amount of greenhouse gases in the atmosphere." (2005)
U.S. Global Change Research Program
"The global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases. Human 'fingerprints' also have been identified in many other aspects of the climate system, including changes in ocean heat content, precipitation, atmospheric moisture, and Arctic sea ice." (2009, 13 U.S. government departments and agencies)
American Association for the Advancement of Science
"Observations throughout the world make it clear that climate change is occurring, and rigorous scientific research demonstrates that the greenhouse gases emitted by human activities are the primary driver." (2009)
"The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society." (2006)
American Chemical Society
"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." (2004)
American Geophysical Union
"The Earth's climate is now clearly out of balance and is warming. Many components of the climate system — including the temperatures of the atmosphere, land and ocean, the extent of sea ice and mountain glaciers, the sea level, the distribution of precipitation, and the length of seasons — are now changing at rates and in patterns that are not natural and are best explained by the increased atmospheric abundances of greenhouse gases and aerosols generated by human activity during the 20th century." (Adopted 2003, revised and reaffirmed 2007)
American Medical Association
"Our AMA ... supports the findings of the Intergovernmental Panel on Climate Change’s fourth assessment report and concurs with the scientific consensus that the Earth is undergoing adverse global climate change and that anthropogenic contributions are significant." (2013)
American Meteorological Society
"It is clear from extensive scientific evidence that the dominant cause of the rapid change in climate of the past half century is human-induced increases in the amount of atmospheric greenhouse gases, including carbon dioxide (CO2), chlorofluorocarbons, methane, and nitrous oxide." (2012)
American Physical Society
"The evidence is incontrovertible: Global warming is occurring. If no mitigating actions are taken, significant disruptions in the Earth’s physical and ecological systems, social systems, security and human health are likely to occur. We must reduce emissions of greenhouse gases beginning now." (2007)
The Geological Society of America
"The Geological Society of America (GSA) concurs with assessments by the National Academies of Science (2005), the National Research Council (2006), and the Intergovernmental Panel on Climate Change (IPCC, 2007) that global climate has warmed and that human activities (mainly greenhouse‐gas emissions) account for most of the warming since the middle 1900s." (2006; revised 2010)
The mean sea level trend is 9.24 millimeters/year based on monthly mean sea level data from 1947 to 2006 which equals a change of 3.03 feet in 100 years.!!!
The data you posted shows that sea levels are rising.
Yep except the same trend goes back 160 years and no matter which graph you look on that site you'll find the same predictable rise or fall. . Did I say fall?
Of course that isn't because the sea level is falling but instead the land is moving up.
Quote:
The second graph shows that sea-levels have been rising an average of 2.77 mm per year. It is not showing a lack of sea level change, as the flat line would intuitively make you think. The second graph is showing that the trend of increasing sea level has not changed much over those years.
I'm well aware of what the second graph represents and how it can be misinterpreted hence the reason I posted the damn explanation, you still got it wrong. What the second graph shows is the acceleration and deceleration relative to the overall trend. In other words right now it's rising faster than normal however as indicated in the graph this has happened before.
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