On eve of climate summit, researchers sharpen emissions tracking


By Warren Cornwall, Science Magazine. 

Excerpt: ...the world needs to cut greenhouse gas emissions by 55% by 2030, but current national pledges only trim emissions by 7.5%, the United Nations Environment Programme warned this week. In a bid to achieve the Paris goal, some nations at the meeting, formally known as the 26th Conference of the Parties (COP26), are expected to commit to deeper emissions cuts, especially from the burning of fossil fuels. While nations step up their pledges, some scientists and policymakers are focused on making sure they stick to them. They are nurturing rapidly emerging technologies—including satellites, sensors, and software—that promise a quick and accurate assessment of greenhouse gas emissions such as carbon dioxide (CO2) and methane.…

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