climate policy12
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From Copenhagen to Paris: Moving From Talk to Action on Climate Change
Globally, individual nations have volunteered greenhouse gas reduction targets in anticipation of the Paris meetings. Unlike Copenhagen, where calls for mandatory reductions and transfer payments to the developing world caused the collapse of any potential agreements, the world community seems more realistic as it approaches the Paris meetings.
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From Copenhagen to Paris: Holding onto Hope
I don’t believe for a second that we are on the brink of global destruction. We are on the brink of a global re-distribution and whole scale re-balancing of global goods and bads. But we have been there before and survived.
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U.S. Could Cut Per Capita Greenhouse Emissions 90% by 2050, Says Report
The report says it is possible to revamp the energy system in a way that reduces per capita carbon dioxide emissions from 17 tons per person currently to 1.7 tons in 2050, while still providing all the services people expect, from driving to air conditioning.
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From Copenhagen to Paris: Low Expectations
As we head to Paris, the expectations are profoundly lower. The national commitments that countries are putting on the table do not add up to nearly enough to keep us within 2 degrees; instead the plan is to come back every five years and hopefully do better. … It is still mathematically possible to stay…
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From Copenhagen to Paris: Likely to Fail Again?
All of the pledges made in Paris will be voluntary. However, countries have not always fulfilled their pledges in the past, and it isn’t obvious that this agreement is going to cause countries to behave very differently in the future.
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Before Paris, Cause for Optimism
If the international community were to fully understand the threat of climate change, and the likely cost of mitigation and adaptation, perhaps we would commit to continued tax breaks and incentives, and propel the renewable energy transition toward completion. In the long run, I am sure this would be less expensive than coping with the…
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Climate Through A Different Lens: Poverty, Inequality, Sustainability
Technology has brought us low-cost global communication, and also enabled a global economy. It has also brought us closer and further from each other. We now know more about other cultures. We also see the differences, and sharpen our sense of inequities. Perhaps, this, rather than a control of greenhouse gases, needs to be the…
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The Paris Climate Summit: Resources for Journalists
Many experts at Columbia University’s Earth Institute are attending or closely watching the Paris climate summit. These include world authorities on climate science, politics, law, natural resources, national security, health and other fields, who can offer expert analysis to journalists. Here’s a guide to resources that journalists covering the summit can tap.
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From Copenhagen to Paris: Getting Beyond Talk
The climate issue seems to generate a high level of ideologically based politics, emotional rhetoric and political symbolism. It is time to move past symbols to pragmatism and political reality.
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