William Happer: who is Trump's likely science adviser? – video report

William Happer, an eminent Princeton University professor, is tipped to become Donald Trump's science adviser. Happer is a respected scientist in the academic community, but many are concerned about his possible appointment because of his stance on climate change. Happer argues that the role of carbon dioxide (CO₂) in climate change has been largely exaggerated and argues that more CO₂ is good for plant life and the planet

• Trump's likely science adviser calls climate scientists 'glassy-eyed cult'