"Anthorpogenic" by definition means "human caused". I am not sure every scientist, or even a majority of them, agree that man is the primary source. Most ceertainly they agree that man is a contributing factor.
Then perhaps some research on your part is in order...because you are clearly misinformed.
http://climate.nasa.gov/scientific-consensus/
"Multiple studies published in peer-reviewed scientific journals
1 show that 97 percent or more of actively publishing climate scientists agree: Climate-warming trends over the past century are extremely likely due to human activities. In addition, most of the leading scientific organizations worldwide have issued public statements endorsing this position"
American Association for the Advancement of Science
"The scientific evidence is clear: global climate change caused by human activities is occurring now, and it is a growing threat to society." (2006)
3
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)
4
American Geophysical Union
"Human‐induced climate change requires urgent action. Humanity is the major influence on the global climate change observed over the past 50 years. Rapid societal responses can significantly lessen negative outcomes." (Adopted 2003, revised and reaffirmed 2007, 2012, 2013)
5
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)
6
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)
7
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)
9
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)
12
I could go on but this should be sufficient...now unless you want to claim that there are no "reputable" scientists within those bodies, it is clear that climate science claims that man is the primary cause for global climate change.
Aain you have to fabricate what I said into something you want to believe. No where have I said, or any article I have posted has claimed, that climate change has never occurred in the past. The difference is past changes have been caused by natural events such as volcanic eruptions, meteor crashes into the earth, etc. The changes now have been aggravated since the beginning of the industrial age, and that is not "nature".
Which brings us right back to my original statement...you claim that "this time" we are responsible for the climate change....and all those scientific academies, and organizations claim that "this time" we are responsible for the climate change. And you are quite wrong in your claim that all past climate change, or even most of past climate change was due to meteor crashes, and volcanic eruptions...we know that "events" have happened which caused the climate to change for some period of time, but those events are not responsible for the long term changes in climate from warm to cool....the "events" you mention would have resulted in cooling and perhaps enough particulates in the air to make it very cold for a period of time....probably long enough to result in loss of plant life leading to extinctions....volcanoes and meteors, however would only lead to cooling due to dust and particulates in the atmosphere which would result in less sunlight reaching the earth. None of those events would cause warming...and for most of earth history, the earth has been considerably warmer than the present. Warm is the norm here on earth...so warm, in fact, that for most of earth's history there was no ice at one or both poles.
So again, you believe that man is causing the present climate change...and all those academies and organizations agree with you...I am asking upon what observed, measured, quantified, empirical data do you and these academies full of scientists make the claim that man is responsible for the climate that we see presently which is well within the boundaries of natural variability. I have looked high and low for some such evidence and can ask you for it with supreme confidence that you will not find it. It doesn't exist....claims of man made warming are nothing more than bullshit.
And you have yet to post even one scintilla of evidence that man is NOT influencing the change.
The complete absence of observed, measured, quantified, empirical evidence that he is causing climate change after flushing hundreds of billions of dollars down the toilet in the attempt to find some such evidence speaks for me...at this point, the claims that man is causing climate change coming out of the scientific community are nothing more that bought and paid for propaganda....there is little money for those who hold skeptical views and pointing out the truth could easily cause irreparable damage to one's career....do you think it is just coincidence that top shelf scientists tend to come out holding skeptical positions after they retire?
So again, if all these agencies, and academies believe and state publicly that man is causing global climate change, lets see the observed, measured, quantified, empirical evidence....if it exists, it should be no problem at all to find...in fact, it should be everywhere you look...a skeptic should not be able to escape it....you should have volumes at your disposal to slap down any claim that I could make that we are not causing global climate change and yet, you are reduced to asking me to prove a negative.