Some overlaps are rather transparent, as when George Orwell and Richie post similar comments on temperature date within minutes. But, I am interested in your best estimate: is it, 5, 10, 30?
For the anti-science deniers (who I will not try to block). You may have seen these statements below already, but try to actually read them this time. If you are unable to comprehend that these are not matters of somebody’s “opinion,” but carefully researched conclusions and simple facts, then go off to your quack witch doctors who practice “alternative medicine” or your flat earth society meeting. No need to take up space abusing the answer box here. If you have an unavoidable dog-at-tree urge to leave something, “I am a dumb liar” will suffice.
U.S. National Academy of Science, 2010:
http://books.nap.edu/openbook.php?record_id=12782&page=1
“Climate change is occurring, is caused largely by human activities, and poses significant risks for a broad range of human and natural systems.”
http://nationalacademies.org/morenews/20100716.html
“Choices made now about carbon dioxide emissions reductions will affect climate change impacts experienced not just over the next few decades but also in coming centuries and millennia, says a new report from the National Research Council. Because CO2 in the atmosphere is long lived, it can effectively lock the Earth and future generations into a range of impacts, some of which could become very severe.”
http://www.nasonline.org/site/PageServer?pagename=ABOUT_main_page
“The Academy membership is composed of approximately 2,100 members and 380 foreign associates, of whom nearly 200 have won Nobel Prizes. Members and foreign associates of the Academy are elected in recognition of their distinguished and continuing achievements in original research; election to the Academy is considered one of the highest honors that can be accorded a scientist or engineer.”