The WASP Science-for-Adaptation Policy Brief on the Global Goal on Adaptation is the sixth issue in the series published by seven United Nations agencies that form the World Adaptation Science Programme (WASP): UN Environment Programme (UNEP), the World Meteorological Organization (WMO), United Nations Framework Convention on Climate Change (UNFCCC), Intergovernmental Panel on Climate Change (IPCC), Global Environment Facility (GEF), Green Climate Fund (GCF) and the United Nations University (UNU). This issue discusses the Global Goal on Adaptation, and its adequacy of adaptive response commensurate with the temperature goal of the Paris Agreement and a collective effort is required to operationalize the Global Goal on Adaptation, noting that there are no agreed frameworks, methods, indicators, or metrics to assess progress towards the Global Goal on Adaptation (GGA).