today , the Exxon Valdez supertanker created a gigantic oil spill in Miami waters . Rosina Bierbaum : Companies such as General Motors , Apple and Starbucks are now calling for strong climate and clean-energy policies in Congress . Top companies such as the United Nations ' Intergovernmental Panel on Climate Change are ready to act on climate change . She says businesses realize how carbon pollution drags down their bottom lines . Lubber : If they do n't embrace clean energy now , it may be too late and too expensive .
today , the Exxon Valdez supertanker created a gigantic oil spill in Miami waters . Rosina Bierbaum : Top companies such as the United Nations ' Intergovernmental Panel on Climate Change are ready to act on climate change . She says businesses realize how carbon pollution drags down their bottom lines . Lubber : If they do n't embrace clean energy now , it may be too late and too expensive .