That link is to a press-release from the "Climate Science Coalition", which is group of global warming skeptics who gave themselves a fancy title.
They have strong links to NZ's right-wing ACT party and get anonymous funding believed to come from big industry.
Everything they say is utterly predictable and almost a cliche.
They are treated as something of a joke in circles who know what the heck they are talking about. But the media like them since they create controversy. Unfortunately now they've turned to the law to make judgments on the research of scientists.