Capacity to monitor emissions to increase a hundredfold in the next three years. Countries that signed up to the 2015 Paris Agreement have committed themselves to keep the rise in average global temperature ‘well below’ 2 °C. Every five years, they are to issue so-called ‘nationally determined co
The Copernicus Carbon Dioxide Monitoring mission, or CO2M for short, is one of Europe’s Copernicus Sentinel Expansion missions and will be the first to measure how much carbon dioxide is released into the atmosphere specifically through human activity. Credit: OHBCountries that signed up to the 2015 Paris Agreement have committed themselves to keep the rise in average global temperature ‘well below’ 2 °C.
Therefore, countries will need to track their carbon emissions, not only at a national level, but also at the scale of individual ‘super-emitters’ such as power plants, megacities, refineries, and giant factories. These ‘super-emitters’ are together responsible for nearly half of humanity’s total output of GHGs.
In late 2025 or 2026, the EU plans to launch its ‘CO2M’ pair of satellites, whose job will be to help with this.But now, scientists have shown that such tracking-at-the-source is already possible, even with existing satellites, for ‘super-emitters’ like the Belchatów power plant in Poland. For this proof-of-principle, they used five years of measurements from’s satellite ‘Orbiting Carbon Observatory 2’ and the instrument OCO-3, attached since 2019 to the International Space Station .
This success is an important achievement, as the OCO missions were designed to measure carbon emissions at much larger spatial scales.emissions from a large power plant, with observations from existing CO-tracking satellites,” said Dr. Ray Nassar, an atmospheric scientist at Environment and Climate Change Canada, Toronto.
emitted by a source — only in the absence of clouds and when the plume doesn’t pass over large water bodies or mountains. They measure ‘XCO2’, the average COconcentration across a column directly below, subtracting the current background value around the plume.plume above Belchatów between 2017 and 2022.The researchers compared the measurements from space to estimates for Belchatów’s emissions, based on its known daily power generation output.
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