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Cement production has an enormous carbon footprint. That can be curbed with plug-and-play solutions, but eliminating emissions entirely will require big, ambitious action.
The state department of transportation says many of its highway projects have “no significant impact.”
It appears that after a long period of haggling — involving the bizarre tableau of Republican Ted Stevens pushing for...
Mike Houck has been urban naturalist for the Audubon Society of Portland since 1982 and is a cofounder of the...
Denis Hayes is chair of Earth Day Network. He was the national coordinator for the first Earth Day in 1970...