Sep 2017

Postdoc opportunity!

To work on the NERC-funded SISLAC (Sources and Impacts of Short-Lived Anthropogenic Chlorine) project, investigating the impact of non-Montreal Protocol halocarbons on ozone recovery. Details and to apply here.


Our new review article on detecting recovery of the ozone layer is published in Nature.


Jul 2017

Our new paper on the increasing threat to stratospheric ozone from dichloromethane is published in Nature Communications.


I am NERC Independent Research Fellow based in the Lancaster Environment Centre (LEC) at Lancaster University. Previously I have held positions in the Chemistry Departments at the University of York and the University of Cambridge, and also the School of Earth and Environment at the University of Leeds.

My research employs state-of-the-art atmospheric models in conjunction with atmospheric observations to understand changes in the chemical composition of Earth's atmosphere and how such changes influence climate (and vice versa). A focus of my present research is to quantify the sources and distribution of natural and anthropogenic halogenated compounds in the Earth system, to assess their impact on tropospheric and stratospheric chemistry; e.g. recovery of the ozone layer, ozone chemistry-climate interactions and methane oxidation.

More information on my group and our research.


Ryan Hossaini
Lancaster Environment Centre
Lancaster University
Lancaster, LA1 4YQ, UK
email: r.hossaini (at "")
phone: +44 1524 594654