WMO is a specialized agency of the United Nations (UN) with 191 Member States and Territories. It is the UN system's authoritative voice on the state and behaviour of the Earth's atmosphere, its interaction with the land and oceans, the weather and climate it produces and the resulting distribution of water resources.
This assessment report looks into all aspects of anthropogenic emissions of black carbon and tropospheric ozone precursors, such as methane. It analyses the trends in emissions of these substances...
The implementation of the Paris Agreement will require countries and sub-national entities to take actions to reduce emissions of greenhouse gases in optimal way. To assist the countries in...
This report considers sensors that are designed for the measurement of atmospheric composition at ambient concentrations focusing on reactive gaseous air pollutants (CO, NOx, O3, SO2), particulate...
The bulletin discusses the role of black carbon in Atmospheric and Climate Research, including black carbon in the Arctic, measurement and observation of black carbon. it aslo recommends...
This report expands the guidelines on aerosol measurements from Aerosol Optical Depth to include a comprehensive list of aerosol optical, physical and chemical measurements that are needed...
The latest analysis of observations from the WMO Global Atmosphere Watch (GAW) Programme shows that globally carbon dioxide (CO2) and methane (CH4) increased from 2014 to 2015, and that the...
This assessment report looks into all aspects of anthropogenic emissions of black carbon and tropospheric ozone precursors, such as methane. It analyses the trends in emissions of these substances...