Greenpeace, the environmental group known for facing off against whalers on the high seas, has targeted its own behemoth in Duke Energy.

The group said Tuesday it has launched a campaign to make Duke "the clean energy company that North Carolina and the United States deserve." Greenpeace faults Duke for its use of coal and for what the group considers inaction on renewable energy.

Duke says the campaign ignores its work to reduce pollutants and invest in renewables, especially wind.

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