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Fracking could play a role in helping Republicans take back the White House.
The shallow waters of the Gulf of Mexico have unexpectedly become a hotbed of activity again.
Even with Senate control in the balance, Louisiana race blurs party lines.
A lawsuit against the oil industry has launched a flurry of bickering, but no cash to fix the coastline.
The administration is pushing for greater investment in infrastructure. Will it get the money?
Environmentalists are fuming over Obama's trade deal.
Environmental mega-donor Tom Steyer unveiled plans to make Republican 2016 contenders pay a political price for denying climate change. Will it work?
This week marks an important step on the road to climate talks in Paris.