Our group combines data from multiple platforms (models, aircraft, satellites, lab and field measurements) to better understand the influence of humans on atmospheric chemistry, air quality, and climate from urban to regional to global scales.

Recent news and highlights from our group:

Our new Central London MAX-DOAS detects aerosol pollution from fires during the July 2022 heatwave
Our new MAX-DOAS instrument up and running on the Torrington Place rooftop at UCL
Our work on the impact of rocket launches on climate and the ozone layer published in Earth's Future.
Conversation piece (June 2022)
The Conversation piece on the likely health crisis from rapidly developing African cities.
Group photo at IGC10, Washington University of St. Louis, USA
Members of the group at the International GEOS-Chem User's Meeting in St. Louis, Missouri.
Premature deaths in fast-growing tropical cities from exposure to air pollution
Our work on the rise in early deaths from air pollution in fast-growing tropical cities now in Science Advances.
Powership emissions
Our work on greenhouse gas and air pollutant emissions from powerships now in Environ. Sci. Adv.
Group get-together at Hollywood Bowl
End-of-year (2021) group celebration at Hollywood Bowl
Conversation piece (November 2021)
The Conversation piece on the substantial global public health benefits of net-zero energy
Rebekah (Bex) Horner joins the group to pursue a PhD
Rebekah (Bex) Horner joins the group to start a PhD on reactive nitrogen in the upper troposphere
Channel 4 News interview
Eloise speaks to Channel 4 News on the need to regulate the space tourism industry
IGAC 2021 presentations mozaic
Our work showcased at the virtual IGAC Science Meeting (Sep 2021)
Image of NH3 emissions
Our work on satellite-derived UK ammonia emissions published in the J. Geophys. Res.
Image of rocket launch
The Conversation and The Guardian articles on the atmospheric impact of a nascent space tourism industry
Image of prevalent sources of VOCs
Press release of our recent paper on monitoring large air pollution changes in cities in India and the UK
Image of prevalent sources of VOCs
Our work on global observations of upper tropospheric NO2 from TROPOMI published in AMT
Premature mortality in Europe due to fossil fuel air pollution
Our work on substantial global mortality from fossil fuel air pollution published in Environ. Res.
COVID-19 lockdown and air quality paper
Our work on factors leading to improved air quality in the UK lockdown published in ERL
AGU 2020 presentations mozaic
Our work showcased at the virtual AGU Fall Meeting (Dec 2020)
Group meeting on Zoom
Our virtual group meeting via Zoom and across 9 time zones
Karn Vohra presents at EGU 2020
Karn Vohra presents his research at the Virtual EGU Zoom session (May 2020)
Charcoal industry air pollution paper published
Our work on the impact of the charcoal industry in Africa on air quality and climate published in ES&T