Political Quotes

Tom Harkin: “The concentration of carbon dioxide in the atmosphere has increased by about 50 percent over the last 150 years.”

On the recordSeptember 8, 2009
The concentration of carbon dioxide in the atmosphere has increased by about 50 percent over the last 150 years.
Said by
Tom Harkin
Democratic · Iowa

Editor's note · Context

Highlighting the significant rise in atmospheric carbon dioxide levels.

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