KCCI NEWSCHANNEL 8 posted Scientists say this small change could cut airlines' climate impact in half KCCI NEWSCHANNEL 8 Des Moines, IA:

Scientists say this small change could cut airlines' climate impact in half

Contrails, those white streaks in the sky, can block Earth's outgoing heat — trapping it like a blanket.

Scientists say this small change could cut airlines' climate impact in half
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