emahieu

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So far emahieu has created 7 blog entries.

The HCFC-22 atmospheric loading still on the rise, but at lower rates

The HCFCs (hydrochlorofluorocarbons), the first substitutes to the banned CFCs (chlorofluorocarbons), are now also regulated by the Montreal Protocol on substances that deplete ozone. The most abundant among them, HCFC-22, is also a potent greenhouse gas. A recent study led by Maxime Prignon, was recently published in Atmospheric Chemistry and Physics Discussions. This paper notably [...]

27 March 2019|

GIRPAS contribution to the WMO assessment report 2018

Every four years, the WMO issues a report that documents the advances in scientific understanding of ozone depletion, reflecting the thinking of the international scientific experts who have contributed to its preparation and review. These advances add to the scientific basis for decisions made by the Parties to the Montreal Protocol. The GIRPAS team has [...]

11 February 2019|

Monitoring the evolution of Ozone-Depleting Substances

The Montreal Protocol has recently turned 30. This was the opportunity to look back and to identify the contributions in the field and the laboratory which led to the success of this international treaty. In a paper published in Compte Rendu Geoscience, Reimann et al. highlight the essential contributions of the global measurement networks over these [...]

22 November 2018|