Science

President Obama Tells U.N. World Can’t ‘Wait for America’ to Lead

In his first address to the U.N. General Assembly, President Barack Obama bluntly said world leaders who once accused the United States of acting alone must now join with him to solve global crises rather than "wait for America" to…

Obama Addresses Climate Change in U.N. Speech

The United States is a serious and determined partner in combating global warming, President Barack Obama told world leaders Tuesday as he sought to show U.S. resolve ahead of crucial climate change talks in Copenhagen in December.

Better Storage Options Sought as Wind, Sun Power Catch on

Tom Bearden reports on new innovations that would allow for better storage of electricity generated by the wind and sun.

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At U.N. Summit, China Pledges to Lead Effort to Curb Climate Change

As the U.N. kicked off a summit on climate change in New York, China promised to lead the way in combating global warming. Margaret Warner reports.

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No ‘Plan B’ for Copenhagen Climate Summit, U.N. Negotiator Says

Ahead of a U.N. conference on global warming this December in Copenhagen, the organization's top climate negotiator speaks with Margaret Warner about the outlook for a global pact to curb greenhouse gas emissions.

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India’s Population Boom Tests Green Revolution’s Legacy

Fred De Sam Lazaro reports from India about new questions about the environmental impact of the nation's first major initiative to grow more food to meet the needs of a booming population.

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Progress Towards a Malaria-Free Tanzania

In this reporter's notebook, senior correspondent Ray Suarez writes about the steps Tanzania has taken to reduce malaria infection, and the promise of new malaria vaccine trials.

One-shot Solution Explored for H1N1 Vaccine

Margaret Warner speaks with Dr. Anthony Fauci of the National Institute of Allergy and Infectious Disease about a new H1N1 flu vaccine.

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Study: H1N1 Replicates, Spreads Faster Than Seasonal Flu

A new study released by University of Maryland researchers this month found that the 2009 H1N1 influenza virus may have a biological advantage over other seasonal flu viruses this winter.

Christo and Jeanne-Claude Go ‘Over the River’ and Through the ‘Lion’s Den’

According to the proposal for a major upcoming art project in Southern Colorado, the artists (and spouses) known as Christo and Jeanne-Claude will suspend a snaking ribbon of porous polypropylene, totaling nearly six miles, above the Arkansas River.