Quantifying methane emissions using measurements is a pressing issue. In a recent commentary for the Nature journal (https://rdcu.be/daGyw), our partner, Prof Grant Allen, describes how aerial surveys, including aircraft and UAVs, can be used to quantify emissions for comparison with official inventories. Surveyar Ltd is proud to offer a solution to UAV-based greenhouse gas emissions surveys – see Gas Measurement (surveyar.co.uk) for further details and contact us if interested.