carbon emissions
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Scope 3 Carbon Emissions and the Management of Supply Chains
Measuring an organization’s impact on its environment is becoming a routine part of competent and effective organizational management. Extending that measurement process into the supply chain is part of current best management practices.
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New York City’s Greenery Absorbs a Surprising Amount of Its Carbon Emissions
A hyper-local study of vegetation shows that the city’s trees and grass often cancel out all the CO2 released from cars, trucks and buses on summer days.
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What Did COP27 Accomplish?
Delegates from Columbia Climate School discuss the achievements and shortfalls of COP27, as well as what took place outside the negotiation room.
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Building Green Energy Facilities May Produce Substantial Carbon Emissions, Says Study
Moving from fossil fuels to solar panels, wind turbines and other renewable energy sources will by itself create a new stream of carbon emissions with the construction so much new infrastructure. The good news: Speeding the transition would greatly reduce this effect.
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Permafrost Emissions Must Be Factored Into Global Climate Targets, Says Study
As the Arctic melts, permafrost there has the potential to send huge amounts of carbon into the atmosphere, but exactly how much is up for grabs, depending on what we do to stem climate change in coming years.
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What Is Decarbonization, and How Do We Make It Happen?
To keep the planet from warming more than 1.5°C above pre-industrial levels, economies must rapidly decarbonize. What will this involve?
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A New Project to Track and Value Climate Innovation in the Built World
Launched today, the Carbon Accounting Project will calculate products’ hidden costs and benefits.
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Coronavirus is Not Helping to Slow Down Climate Change
The same level of emissions cuts reached during the pandemic would need to be repeated each year to achieve the goals of the Paris Agreement by 2030.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

