Environment

Earthquake death toll rises

The World's Mary Kay Magistad reports from the earthquake-hit Chinese city of Dujiangyan; Chinese officials are warning that the overall death toll from Monday's quake could surpass 50,000.

Environment

Vigil for earthquake victims

Jessica Jones reports on a vigil held in North Carolina for victims of Monday's earthquake in China; many Chinese living in the United States want to find ways to help quake survivors.

Environment

New study on climate change

Anchor Lisa Mullins talks with Cynthia Rosenzweig, the lead author of a new study on climate change; Rosenzweig finds compelling evidence that climate change is already having a profound impact on eco-systems around the globe.

Environment

Marcus Du Satoy

Faith talks to Oxford University mathematician Marcus du Sautoy about his new book, "Symmetry: A Journey in the Patterns of Nature."

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