Science correspondent Laurie Winkless joins Kathryn with three new fascinating studies. The first is into the effect extreme El Niño weather had on forest carbon sinks across South America - essentially, they were switched off.
Hydrodynamic drag - that feeling of the water slowing you down when you're swimming - has been looked at by researchers at Brown University - with a finding that the drag on partially submerged objects is much higher than thought.
And unlike with sight and sound, there's no way to accurately measure odour. But a new AI model has been trained to predict the smells of molecular structures - what are the implications?
Laurie Winkless is a physicist and science writer.
El Niño's effect on forest carbon sinks has been detailed in a new study. Photo: AFP / Science Photo Library
