Ninety-eight resorts took part in the campaign, including 58 that are buying green energy through renewable energy credits, said industry spokesman Troy Hawks.

The green power purchases are the equivalent of shutting down 263,000 ski lifts for one day or avoiding 181,000 round-trip flights between San Francisco and New York, said Hawks.

He said 63 resorts in 21 states are supporting legislation to reduce greenhouse gas emissions.

The figures were in the industry's seventh annual report on environmental efforts. So far, 84 resorts have endorsed the Environmental Charter, roughly more than 75 percent of the ski resorts nationally based on skier/snowboarder visits.

Greenhouse gases, which occur naturally in the atmosphere but also are created by burning fossil fuels, raise the temperature of the plant, some scientists say.

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