Reading Buses has been accused of releasing a dangerous gas into the local environment by leading chemist Professor Val N. C. Bond. After catching the number 17 bus she said that she was shocked to see the company proudly proclaiming that they were releasing oxygen monocarbide with an oxidation state of +2 into the atmosphere.

"Don't they know what damage CO² can do to the environment?" she told us. "Why, if those spare oxidation state molecules ever attempted to bond with CH₄ mixed with hydrogen in a plasma state we'd have the ideal mix for forming diamonds by chemical vapour deposition and that would not be good for the people of Reading.

Reading Buses have declined to comment on the Professor's findings, but did release a statement. "It was a typo. It should have said CO₂. Are you happy now?"