The world's largest chemical firms have made "scarcely any progress" in improving their environmental performance in the past three years, according to a report published on Tuesday by Germany-based environmental and social rating agency Oekom.
Companies were rated on a scale from A+ to D- according to a series of criteria such as energy and water consumption, resources use and environmental reporting. German firm BASF was given the highest ranking (B-), followed by US gas company Praxair. The average rating across the industry is C.
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