"House Transportation Chair John Mica introduced Americans to the GOP vision for transportation on Tuesday -- more highways and more toll roads. To pay for it all, there would more offshore drilling. Democrats and environmentalists, predictably, weren't impressed."

"FORT WORTH, Texas — A new Texas Railroad Commission rule requiring oil and natural gas operators to publicly disclose the chemicals used in hydraulic fracturing of natural gas and oil wells takes effect Wednesday."

"Canada’s Nunavut Territory is the largest undisturbed wilderness in the Northern Hemisphere. It also contains large deposits of uranium, generating intense interest from mining companies and raising concerns that a mining boom could harm the caribou at the center of Inuit life."

"A drought that a government official called the most severe Mexico had ever faced has left two million people without access to water and, coupled with a cold snap, has devastated cropland in nearly half of the country."

The Central New York Oil & Gas Co. assured residents and regulators it would avoid using eminent domain to lay its pipeline in Pennsylvania's pristine Endless Mountains. But 2 days after FERC granted approval, the company went to court to condemn nearly half the properties along the route.

The Cossoloottoo family in Centerville, Iowa, suspected vaccinations were the culprit when their 6-month-old daughter got seizures and what looked like autism. Their concerns were worsened by studies linking vaccinations to autism -- studies later discredited as fraud. It wasn't until some 10 years later that a specialist at the Mayo Clinic correctly diagnosed their daughter as having a genetic disorder, Dravet syndrome, that strikes one in 20-40,000 children born.

"MIAMI -- The U.S. is not ready to handle an oil spill if drilling off the Cuban coast goes awry but can be better prepared with monitoring systems and other basic steps, experts told government officials Monday."

"Keeping the invasive Asian carp out of the Great Lakes will involve re-reversing the flow of the Chicago River -- an engineering marvel completed a century ago through a complex network of rivers, canals, and locks, a new study said on Tuesday."

"The prickly pear cactus may not sound like a trendy cash crop, but it could become a phenomenon among farmers on the arid west side of the San Joaquin Valley."

"Across southern Florida, rabbits, raccoons, bobcats and foxes have been disappearing at dramatic rates over the past decade, and invasive Burmese pythons are to blame, a US study said Monday."