Rather, he shows, most environmental indicators are stable or improving.

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"They are well known indicators of environmental change", said the spokesman.

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They evaluated the remaining 350 companies using key environmental, social, and governance performance indicators, including waste productivity, CEO-to-average-worker pay ratio, leadership diversity, and employee turnover.

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Not surprisingly, the countries are wealthy and among the world's greenest as well, according to the Environmental Performance Index, a joint product of Columbia University and Yale University, which measures performance against 25 indicators, such as measures of air pollution, water supply or use of natural resources.

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