BIPMWMO22.ORG

Present progress and identify requirements for further development of advanced measurements, standards, reference data, comparisons, calibration supporting the physical science basis for and adaptation to climate change, and... Identify stakeholders' metrology needs, assess current metrological techniques, analyses, and modeling capabilities, and identify gaps in quantifying greenhouse gas emissions and uptake for effective actions on mitigating climate change and its impacts... Background and large-scale trend observations of stratospheric and tropospheric greenhouse gases, including ground and space-based total column observations and atmospheric composition products