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Humankind will soon lose a great deal of vigilance over the ozone layer, which shields life on Earth from harmful solar radiation. The impending loss of NASA’s Aura and the Canadian Space Agency’s SCISAT satellites threatens scientists’ ability to closely monitor compounds that destroy ozone and alter stratospheric circulation. With no planned missions to replace...
Luana Basso's recent TOMCAT inversion model study in Atmos Chem Phys has been selected as an Editor's highlight. The Editor's citation is: "The Amazon's role in the tropical and global carbon cycle is highly significant. Usually considered as the "lung of the planet", it is mandatory to monitor if this role is kept, or if...
Wuhu Feng's recent GRL paper on iodine propulsion is highlighted in Nature article. Feng, W., J.M.C. Plane, M.P. Chipperfield, A. Saiz-Lopez and J.-P. Booth, Potential stratospheric ozone depletion due to iodine injection from small satellites, Geophys. Res. Lett., 50, e2022GL102300, doi:10.1029/2022GL102300, 2023.
No ozone hole in the tropics! We have just led and published a strong rebuttal of a paper in AIP Advances which claimed that there (Chipperfield et al., 2022). That paper had not only claimed large ozone depletion in the tropics but gave an erroneous mechanism for polar ozone depletion. Chipperfield, M.P., A. Chrysanthou, R....
Stephen Anderson, Marco Gonzalez and Nancy Sherman have written an EOS article on the Montreal Protocol, highlighting twelve papers which formed "the scientific basis for fast action to strengthen the treaty, which was already safeguarding stratospheric ozone, so it also protects the climate by reducing super pollutants.". One of the 12 papers is our study...
The emissions of a banned ozone-depleting gas have dropped rapidly following a previously unexpected spike. A team of international researchers analysed global air measurements of the ozone-depleting chemical chlorofluorocarbon CFC-11. The analysis involved the use of detailed atmospheric models to remove the effects of natural meteorological variations. They found that five years after an unexpected...
Rising nitrous oxide emissions are jeopardizing climate goals and the Paris Accord, according to a new international study, which included results from TOMCAT (INVICAT) inversions. The growing use of nitrogen fertilizers in the production of food worldwide is increasing concentrations of nitrous oxide in the atmosphere—a greenhouse gas 300 times more potent than carbon dioxide—which...
Martyn Chipperfield writes for The Conversation on how the 30-year-old ozone layer treaty Montreal Protocol is so successful it is now taking on Climate Change. The 1987 treaty that stopped the pollution causing a hole in the ozone layer is rightly seen as a major success story. It’s arguably the most successful international environmental agreement...