Methane Emissions Are Greatly Underestimated By The EPA – “Methane emissions from landfills, urban areas, and across several U.S. states are substantially underestimated by the Environmental Protection Agency (EPA). This is the conclusion of a study by researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS). The experts used advanced satellite data from 2019 combined with an atmospheric transport model to create a detailed map of methane emissions across the United States.” [Earth.com, 5/2/24 (=)]
Plugging The Gaps In Methane Slip. “Methane slip, a critical issue in the realm of vessel emissions, has long been challenging to quantify accurately. The recent Fugitive and Unburned Methane Emissions from Ships (FUMES) project conducted by the International Council on Clean Transportation (ICCT) sheds light on the underestimation of methane slip from LNG-powered vessels during real-life operations. Despite its significance, the complexities surrounding methane slip quantification have persisted due to limited real-world data and reliance on assumptions in regulatory frameworks. The scarcity of real-life operational data on methane slip has been a considerable obstacle. With the surge in LNG adoption as a marine fuel, driven by environmental regulations and industry trends, the need for accurate measurement and regulation of methane emissions has become paramount. The FUMES project aimed to address this gap by collecting data from dual-fuel LNG engines and LNG carriers discharging cargo, utilising helicopters, drones, and direct measurements from vessel operations.” [Riviera, 5/3/24]