Needless to say, scientists disagree. Patrick Moore shows he knows little of science when he says "There is no scientific proof." There is very compelling evidence, but there is no such thing as "Scientific proof".
He laughably accuses scientists of being in the pay of vested interests all the while being a PR front for fossil fuel interests such as the Heartland Institute that published this very piece.
His 'argument' amounts to long debunked talking points.
He shows he hasn't read an IPCC report when he says IPCC will "consider only the human causes of global warming". IPCC outlines scientific consensus on all sources of climate change from solar cycles to milankovitch cycles.
He shows he hasn't looked at paleoclimate reconstructions which show that the Earth has been generally cooling for the last 8000 years and that the current temperatures are likely higher than at least the last couple thousand.
The rest of his argument boils down to simple incredulity, which is not very compelling.