Has it? I haven't heard of americanthinker.com before, but do you have a reputable source for that claim, such as an independant study published in an independent journal that has been peer reviewed? Such as [0]. Because other legitimate sources such as Nasa actually state the 97% figure too[1].

[0] http://iopscience.iop.org/article/10.1088/1748-9326/8/2/0240... [1] http://climate.nasa.gov/scientific-consensus/