"WINNIPEG, Manitoba -- Aboriginal tribes from Canada and the northern United States signed a treaty on Thursday to jointly fight proposals to build more pipelines to carry crude from Alberta's oil sands, saying further development would damage the environment."

"Peru's internationally-renowned environmentalist Maxima Acuña and her partner were severely hurt Sunday morning in an attack by alleged hitmen hired by the mining company they are fighting against, reported Acuña's daughter."

"Police arrested 13 activists on Thursday who were protesting oil and natural gas leasing on federal lands at the U.S. Department of the Interior, the agency responsible for auctioning rights to drill."

"PORTLAND, Ore. — Federal prosecutors today told a jury that the leaders of the armed standoff at the Malheur National Wildlife Refuge earlier this year 'moved as a military force.'"

"Sen. Bernie Sanders called on President Obama to take action against the controversial Dakota Access oil pipeline during a protest outside the White House on Tuesday with members of the Standing Rock Sioux Tribe and other tribal nations."

"PORTLAND, Ore. — The trial of Ammon Bundy, his brother Ryan and five of their followers, antigovernment protesters charged in the armed takeover of a national wildlife refuge earlier this year, will begin here on Tuesday in a federal court."

"The governor of North Dakota has activated the state's National Guard ahead of a U.S. District judge's decision Friday morning that could inflame protesters who have been gathered here for weeks in an effort to block a pipeline project."

"A North Dakota judge issued a warrant Wednesday for the arrest of Green Party presidential candidate Jill Stein, who is accused of spray-painting construction equipment during a protest against the Dakota Access pipeline."

"An American Indian tribe succeeded Tuesday in getting a federal judge to temporarily stop construction on some, but not all, of a $3.8 billion four-state oil pipeline, but its broader request still hangs in the balance."

"On September 3, the Dakota Access pipeline company attacked Native Americans with dogs and pepper spray as they protested against the $3.8 billion pipeline’s construction."