WASHINGTON (Reuters) - The affects of greenhouse gas ozone, which has
been increasing near Earth's surface since 1850, could seriously cut
into crop yields and spur global warming this century, scientists
reported on Wednesday.

Ozone in the troposphere -- the lowest level of the atmosphere --
damages plants and affects their ability to absorb carbon dioxide,
another global warming gas whose release into the atmosphere
accelerates climate change, the researchers wrote in the journal
Nature.

http://news.aol.com/story/_a/ozone-c...25141709990031