George Orwell would have had the climate change crusade easily figured out.
Today's Ministry of Truth is the Intergovernmental Panel on Climate Change (IPCC). Established in 1988 by the United Nations, the IPCC is the source of most of the supposedly authoritative warnings that man-made climate change is destroying the planet. The truth is what the IPCC says it is, and anyone questioning it is automatically guilty of thoughtcrime, which in Newspeak is definitely doubleplusungood.
As for HateWeeks, these are held from time to time when officials of the Ministry of Truth organise conferences around the world where the participants can declare their hatred for carbon dioxide (CO2) as the enemy of the people. Subsidiary enemies such as oil companies or coal-fired power stations also come in for some of the hate.
Hate is indeed gathering momentum as big money refuses to finance any more doubleplusungood investment in such ventures after Extinction Rebellion and others issue their atrocity pamphlets. Understandably, nobody in big money would wish to be targeted for hate in the way poor old Emmanuel Goldstein was back in 1984. Perhaps he was the first man to burn fossil fuels. Maybe he even invented CO2?
As for Big Brother, he would have applauded how one British university got into the swing of things by holding a conference to discuss whether denial of climate change could be classified as a form of mental disorder. Perhaps they picked up the idea from the USSR.
Big Brother would also have been mightily impressed at the commitment of thousands of Little Sisters around the world. They think nothing of giving up their education in order to sniff out enemies of the people. He would have been immensely proud of how during hate week the most savage yells of all came from the schoolchildren.