Measuring Progress is a derivative product of the sixth report in the GEO series (GEO-6; UNEP 2019a). This publication complements the GEO and provides an overview of the current state of the environmental dimensions of sustainable development based on the SDG indicators - including the availability of statistical and spatial data, analytical methods and visualisations - and identifies knowledge and information gaps in terms of assessing progress towards the environmental dimension of the SDGs.