A climate change professor says we should focus more on physics than on feelings.

UN Secretary General Antonio Guterres said the era of global boiling has arrived, after scientists confirmed July was on track to be the hottest month ever.

New Zealand Climate Change Research Institute's Adrian Macey told Heather du Plessis-Allan that these statements stoke fear and guilt but often not action.

He says we should focus on shifting to clean energy, which isn't up for debate because this would create some confidence in people, rather than simply despair. 

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