The overall objectives of PARIS are:

1) Quantify top-down emissions from a selection of European countries of all the major greenhouse gases (GHG) reported under the United Nations Framework Convention on Climate Change (UNFCCC) carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and fluorinated gases (F-gases), and black carbon (BC) aerosol reported under the Convention on Long-range Transboundary Air Pollution (CLRTAP).

2) Quantify the contribution of major source sectors of greenhouse gases and black carbon emissions and organic matter aerosol (OM) abundance through the implementation of innovative measurement and analysis technologies.

3) Derive time- and space-resolved flux estimates for greenhouse gases with complex or uncertain source distributions (nitrous oxide, fluorinated gases)

4) Produce draft Annexes to the annual National Inventory Reports (NIRs) for a selection of ‘focus’ countries