A team of chemists has lifted the hood on the mysterious interplay between sunlight and molecules in the atmosphere known as ‘roaming reactions’, which could make atmospheric modelling more accurate.
New research by a team of scientists shows that black carbon aerosols and ozone, both man-made pollutants, are most likely pushing the boundary of the tropics further poleward.
![Sherwood[1]](https://newsroom.unsw.edu.au/sites/default/files/styles/teaser_thumbnail/public/thumbnails/image/sherwood%5B1%5D_3_1.jpg?itok=x-f9Z3rI "Sherwood[1]")