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How To Save The World

The Leonard Lopate Show

Please Explain: How to Save the World—World Peace

Friday, February 24, 2012

This week's Please Explain is the final installment of our series How to Save the World. Jeffrey Sachs discusses whether it's possible to achieve world peace. He's Director of The Earth Institute at Columbia University and Special Advisor to United Nations Secretary-General Ban Ki-moon. His most recent book is The Price of Civilization.

 

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The Leonard Lopate Show

Please Explain: How to Save the World—Food Security

Friday, February 17, 2012

This week's Please Explain continues our series How to Save the World. Glenn Denning, Director, Center on Globalization and Sustainable Development at the Earth Institute at Columbia University, and J. Matthew Roney, Research Associate, Earth Policy Institute, examine the global food supply.

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The Leonard Lopate Show

Please Explain: How to Save the World—the Future of Garbage

Friday, February 10, 2012

Wherever humans go, they leave trash behind. The average American throws away over 1,130 pounds of waste per year. On this week’s Please Explain, we continue our series How to Save the World, looking at how we dispose of garbage, how recycling and composting and smaller packaging can cut down on the amount of garbage people throw away around the world, and how garbage can be used as a renewable, green energy source. Joining us are Nickolas J. Themelis, Director, Earth Engineering Center, and professor in the School of Engineering at Columbia University, and Elizabeth Royte, author of Garbage Land and Bottlemania.

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The Leonard Lopate Show

Please Explain: How to Save the World—Climate Change and How to Stop It

Friday, February 03, 2012

This week’s Please Explain, the third in our series How to Save the World, is about climate change and how to stop it. David Archer, professor of geophysical sciences at the University of Chicago, and author of The Long Thaw: How Humans are Changing the Next 100,000 Years of the Earth’s Climate, and Global Warming: Understanding the Forecast; and Klaus Lackner, Director of the Lenfest Center for Sustainable Energy at Columbia University’s Earth Institute join us to talk about carbon in the atmosphere, how and why it is causing climate change, and how to slow or stop climate change by using sustainable energy and carbon sequestration.

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The Leonard Lopate Show

Please Explain: How to Save the World—Population Growth and Control

Friday, January 27, 2012

This week's Please Explains is the second in our series on how to save the world—ways to approach complex global problems such as climate change, food supply, garbage disposal, the global water supply, and violence. Today we're looking at the population explosion—there are now 7 billion people on the planet. We're joined by Hania Zlotnik, director of the population Division at the Department of Economics and Social Affairs at the United Nations, and Dr.Joel E. Cohen, mathematical biologist and the head of the Laboratory of Populations at Rockefeller University and Columbia University, and author of How Many People Can the Earth Support?

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The Leonard Lopate Show

Please Explain: How to Save the World—The Global Water Supply

Friday, January 20, 2012

We're kicking off a series of Please Explains on how to save the world—ways to approach complex global problems such as climate change, food supply, garbage disposal, population control, and violence. Today's topic is how to protect the world's water supply. Upmanu Lall, Director of the Columbia Water Center, and Sandra Postel, founder of the Global Water Policy Project and National Geographic Freshwater Fellow join us to discuss the state of fresh water around the globe.

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