New gas-mileage standards saving oil, cutting emissions?

Higher fuel efficiency standards will cut oil use and greenhouse gas emissions. That’s the gist of this article. But it is what is beneath the headline that really makes a difference  as far as the health and well-being of fish and wildlife populations: The presence of roads and their fragmenting effect on the landscape everywhere. How about we start shutting some roads and restoring some migratory corridors and making protected areas “whole” again in the process.

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