Everyone, actually. Not just Republicans. Everyone in politics is anti-science when there are votes to be had, or when the application of scientific principles offends personal preferences. To claim that Republicans somehow have a lock on being anti-science–as is done commonly on the port side–is absurd. The facts clearly undermine such a claim.
At the end of his article, Ronald Bailey concludes that on the issues discussed, Republicans are more anti-science. It is difficult to see how that is the case, as Democrats commit some major anti-science whoppers, but even if Bailey’s claim is true, the difference between the Republicans and the Democrats is so small as to be utterly inconsequential.