Global gridded anthropogenic emissions of air pollutants and methane for the period 1990-2050

This version (VERSION 2.1) includes an update of the LRTAP MTFR scenario (Version 2). The baseline (LRTAP_Baseline) did not change from Version 2. The key updates for MTFR in VERSION 2.1 include:

• Global update of mitigation potential for municipal waste management, affecting emissions of CH4 and to a small extent also PM2.5.
• Updates to pace of feasible introduction of better technology in off-road sector; a more pessimistic outlook in less developed regions, and
• Update of maximum applicability rates (technical limitations) for residential heating sector. This has mostly implications (less reduction feasible) in the mid-term, i.e. until 2040, with less impact towards the end of the modelling horizon.

For reference, a complete description of the VERSION 2 set is provided below:

The global anthropogenic emissions of air pollutants including sulphur dioxide (SO2), nitrogen oxides (NOx), ammonia (NH3), particulate matter (distinguishing PM2.5, PM10, BC, OC, OM), non-methane volatile organic compounds (VOC), carbon monoxide (CO), and methane (CH4) were developed at CIAM/IIASA [1]. These emission datasets have been produced with the GAINS model [2] (Amann et al., 2011) within work under UNECE Convention on Long-Range Transboundary Air Pollution (LRTAP) and cover the 1990-2050 period. The respective emission datasets consist of 5-yearly global annual and monthly emissions and include two to three scenarios, depending on the version of the dataset: 

• a baseline that is referred to as current legislation case (LRTAP Baseline), and
• a scenarios exploring technical mitigation potential for all pollutant species (LRTAP MTFR), and
• a scenario that combines climate policy, behavioural changes, and strong technical mitigation of all pollutants (LRTAP LOW)

VERSION 2 includes two scenarios (Baseline and MTFR), including a major update of the underlying data (including future drivers), included policies, and some revision of spatial proxies compared to Version 1. Brief explanation of assumptions used in these scenarios are provided below:

The current legislation scenario (LRTAP Baseline) assumes implementation and effective enforcement of all committed energy and environmental policies affecting emissions of air pollutants and greenhouse gases. Following development of Version 1, CIAM has undertaken further review resulting in updates of historical data (up to 2020) and projections driving emissions of all species in the GAINS model. Most of the updates for historical data are for Europe and Central Asia while projections are updated globally. CIAM team has held consultation meetings with all EU27 and West Balkan countries as well as Switze