No doubt : Human Activity Affecting Global Climate Change

[Ivan Seeking]

"No doubt": Human Activity Affecting Global Climate Change

An interesting link that I had tucked away.

http://globalchange.gov/

Here is one story from the link.

Two of the nation's premier atmospheric scientists, after reviewing extensive research by their colleagues, say there is no longer any doubt that human activities are having measurable--and increasing--impacts on global climate. Their study cites atmospheric observations and multiple computer models to paint a detailed picture of climate changes likely to buffet Earth in coming decades, including rising temperatures and an increase in extreme weather events, such as flooding and drought. The study appeared December 5 in Science as part of the journal's "State of the Planet" series. The coauthors--Thomas Karl, director of NOAA's National Climatic Data Center, and Kevin Trenberth, head of the Climate Analysis Section at the National Center for Atmospheric Research (NCAR)--conclude that industrial emissions have been the dominant influence on climate change for the past 50 years, overwhelming natural forces. The most important of these emissions is carbon dioxide, a greenhouse gas that traps solar radiation and warms the planet. "There is no doubt that the composition of the atmosphere is changing because of human activities, and today greenhouse gases are the largest human influence on global climate," they write. "The likely result is more frequent heat waves, droughts, extreme precipitation events, and related impacts, e.g., wildfires, heat stress, vegetation changes, and sea-level rise which will be regionally dependent." [continued]

http://globalchange.gov/

 

[Andre]

well I have heard that song before

But there is other news, global warming is caused by the decrease of number of weather stations:

http://www.cse.unsw.edu.au/~lambert/img/tempvstations.png

Figure 3 shows the total number of stations in the GHCN (Global Historical Climatology Network - Andre) and the raw (arithmetic) average of temperatures for those stations. Notice that at the same time as the number of stations takes a dive (around 1990 due to the collapse of Communism - Andre) the average temperature (red bars) jumps. This is due, at least in part, to the disproportionate loss of stations in remote and rural locations, as opposed to places like airports and urban areas where it gets warmer over time because of the build-up of the urban environment.

 

[Ivan Seeking]

Well, that is hardly convincing in lieu of the other information offered.

 

[Andre]

I see no information other than hearsay. "we have reviewed work of others and there is no doubt that they are right". Were are the graphs? What was the method?

 

[Ivan Seeking]

Government websites with scientific papers referenced is considered hearsay?

This is your definition of hearsay?
National Center for Atmospheric Research (NCAR).

Note that your graph had no supporting information.

 

[Andre]

http://www.uoguelph.ca/~rmckitri/research/econ-persp.pdf
http://www.usefulinfo.co.uk/climate_change_global_warming.php
http://www.warwickhughes.com/hoyt/climate-change.htm

 

[Bored Wombat]

http://www.uoguelph.ca/~rmckitri/research/econ-persp.pdf
http://www.usefulinfo.co.uk/climate_change_global_warming.php
http://www.warwickhughes.com/hoyt/climate-change.htm

Oh, Perleeze!

There are literally thousands of peer reviewed papers on climate change. Please don't insult your own intelligence by posting pseudo-scientific blogs or articles by paid denialists.

 

[Monique]

Dear Bored Wombat, this is a thread from 2004. We have already addressed the issue in the https://www.physicsforums.com/showthread.php?t=280637".

Controversial claims must be supported by evidence that comes from a scientific, peer-reviewed journal or a similarly reliable source, i.e., unsubstantiated claims are not allowed.

This thread is now closed.