Global Warming Many people argue global warming has its good side: it means plants and crops will grow better. But NPR's John Nielsen reports on new research on fossil leaves suggesting that during an ancient warming spell, insects multiplied and took a huge toll on plants.
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Global Warming

Only Available in Archive Formats.
Global Warming

Global Warming

Global Warming

Only Available in Archive Formats.

Many people argue global warming has its good side: it means plants and crops will grow better. But NPR's John Nielsen reports on new research on fossil leaves suggesting that during an ancient warming spell, insects multiplied and took a huge toll on plants.