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Significant reductions in global greenhouse gas emissions still possible by Staff Writers Montreal, Canada (SPX) Jan 12, 2023
About a quarter of the world's electricity currently comes from power plants fired by natural gas. These contribute significantly to global greenhouse gas emissions (amounting to 10% of energy-related emissions according to the most recent figures from 2017) and climate change. By gathering data from 108 countries around the world and quantifying the emissions by country, a McGill-led team, which includes researchers from Carnegie Mellon, Johns Hopkins, University of Texas (Austin) and the University of Maryland, has estimated that total global carbon dioxide (CO2) emissions from the life cycle of gas-fired power is 3.6 billion tonnes each year. They found that this amount could be reduced by as much as 71% if a variety of mitigation options were used around the world.
More efficient plants could reduce greenhouse gases significantly "If natural gas is going to play a role in a low carbon future, even for a transitional period, there will be a need to improve efficiency in power plants and to cut methane emissions from natural gas production as well as to capture and store CO2." "We found that the most effective way to reduce greenhouse gas emissions was with carbon capture and storage, followed by making power plants more efficient," added Andrew Ruttinger, a PhD student at Cornell University in Chemical and Biomolecular Engineering who participated in the research. "But the mitigation options that will be most successful in any given country will vary depending on the regional context and the existing infrastructure."
Identifying drivers of emissions gives government tools to take action "Climate change is a global challenge and achieving a low-carbon energy system points to the need for reducing emissions across the supply chain from gas extraction through end use," said Arvind Ravikumar, a research associate professor in the Department of Petroleum and Geosystems Engineering at the University of Texas at Austin. "Our analysis demonstrates that significant efforts are needed to transition from current emissions levels, but also that by identifying the drivers of emissions in the gas supply chain, governments can take strategic, nationally-determined action to reduce their emissions."
Research Report:Global mitigation opportunities for the life cycle of natural gas-fired power
NASA space missions pinpoint sources of CO2 emissions on Earth Pasadena CA (JPL) Jan 10, 2023 A duo of Earth-observing missions has enabled researchers to detect and track carbon dioxide (CO2) emission changes from a single facility, using the world's fifth-largest coal-fired power plant as a test case. In the recent study, researchers used space-based measurements from NASA's Orbiting Carbon Observatory (OCO) 2 and 3 missions to quantify the carbon dioxide discharged hundreds of miles below at Belchatow Power Station in Poland, the largest single emitter in Europe. Analyzing the plant's e ... read more
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