'Perhaps the single most successful international environmental agreement to date has been the Montreal Protocol' Kofi Annan
Using atmospheric observations, we have monitored international progress on phasing out ozone depleting substances such as CFCs for over 30 years.
The Medusa Gas Chromatography Mass Spectrometry instrument, co-developed by the ACRG, provides high-precision measurements of more than 40 ozone depleting substances and other related gases. Using models, we have used these data to track how emissions of these substances continue to change in response to the Montreal Protocol.
Follow the links to the right for further information on individual projects involving the ACRG.
The Advanced Global Atmospheric Gases Experiment (AGAGE) network has been tracking the changing composition of the global atmosphere since 1978
The UK DECC network is comprised of five stations across the UK and Ireland, making high frequency atmospheric measurements of greenhouse gases and ozone-depleting substances