Sustainability29
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Energy Modernization as Climate Policy
Energy modernization is the goal, greenhouse gas reduction is a much-needed byproduct.
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It May Be Time to Reconsider Energy Efficiency Exemptions for Historic Buildings
Despite long-standing rhetoric, older buildings are not always greener, according to a recent study.
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The Long Transition to Environmental Sustainability is Already Underway
The path to a circular, renewable resource-based economy will be long and difficult. But I am optimistic that the seeds of change have been planted, and the generation-long process has begun.
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Bottom-Up Sustainability: The Case of Altavista in Medellin, Colombia
One size does not fit all. A community garden project shows how involving communities in planning and development can help make sustainable practices successful.
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Let’s Build a Train From Brooklyn to Queens and Someday to the Bronx
Let’s build that interborough train line and once it’s up and running, build a second phase to the Bronx.
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The Pivot Toward Sustainability Finance
My hope is that even if a conservative American national government abdicated climate leadership once again, the market forces we saw in 2021 will be too deeply established to deter.
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Building an American Political Consensus Behind Environmental Sustainability
Economic modernization is how we can and hopefully will build an American political consensus behind environmental sustainability.
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Columbia Climate School Partners Among Finalists for Developing Climate Solutions Center in New York Harbor
The center will prepare communities around the world for the impacts of climate change; create good-paying green jobs across the city; and foster public awareness, dialogue, and action.
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Building and Financing the Infrastructure of a Sustainable New York City
The city’s environmental sustainability effort spans many agencies and needs control and coordination by a senior official with experience and clout.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.
