Covid- 19 cases seem to be multiplying daily and there is now a growing body of scientific evidence both on its spread and the effectiveness of measures to try and control it. We look at what’s working, what’s not and why. And we look to the potential for coronavirus drug treatments, why despite the hype there really isn’t anything round the corner.Australia’s recent fire season was intense; a new study looks back over 500 years of the weather pattern partly responsible, the Indian Ocean Dipole. The findings show the most extreme years occurred recently – under the influence of man-made climate change. And we look at life deep below the sea floor, microbes which multiply slowly over centuries and eat their neighbours. (Image: Coronavirus test. Credit: iStock / Getty Images Plus)Presenter: Roland Pease
Producer: Julian Siddle

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