For big business seeking CO2 emissions price, a ray of hope from Paris

PARIS (Reuters) - For the most part, big business wanted one thing from the climate accord in Paris on Saturday: a price on carbon dioxide (CO2) emissions. While on the surface their hopes were dashed, looking deeper may give them cause for hope.

Multinational companies from oil giant BP to consumer products maker Unilever have called for a globally agreed way of pricing emissions of CO2 - the gas most widely blamed for global warming - to create an incentive for power plants and factories to shift to cleaner forms of energy.