Mike McGinn is leading the charge against a proposed new store, saying Whole Foods pays significantly less than unionized grocery stores.
Scientists are racing to study and conserve wild varieties of crops before they disappear. Such weeds could bolster agricultural yields as the climate changes.
Renewable energy would have greater social benefit in states that are currently reliant on coal, a new study suggests.
An underground oil blowout at a tar-sands operation in Alberta has caused thousands of barrels of bitumen to burble up into forest areas.
Sales of plug-in vehicles tripled from 2011 to 2012, and have so far more than doubled this year. The low cost of powering the cars is one factor -- just $1.18 per gallon on average.
From April to June, more than 80 percent of the Northern Hemisphere's snow cover melted away -- one of the most rapid shifts on record.
The number of gas and oil rigs drilling deeper than 1,000 feet in the Gulf is expected to nearly double during the next two years to 60.
"The West is being devastated by wildfires," said the Senate majority leader. "Why? Because the climate has changed."
As more oil is being shipped by rail across North America, more oil is being spilled from trains.
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