Ad campaigns launched for and against Keystone pipeline Add to ... CTV News Published Monday, Apr. 08 2013, 2:50 AM EDT Last updated Thursday, May. 02 2013, 11:12 AM EDT More on the commercials produced by Keystone pipeline critics, and the pro-pipeline ads from the Alberta government. Watch More Video: Believed to be the world's tallest, hand-constructed snowman, built in Alberta Church overflows with mourners at funeral for Elijah Marsh Russians march in memory of murdered Putin critic Security footage allegedly shows missing British girls boarding bus to Syria Putin critic seen talking on phone hours before his murder Prince William wears samurai warrior costume in Japan Investigation begins in Putin critic's murder Russian opposition leader Boris Nemtsov gunned down in Moscow Mexico captures most wanted drug kingpin, 'La Tuta' Canada’s troubled submarine fleet finally hits its stride. Here’s how Sandon, B.C.: Take a tour of this rural ghost town with a rich past Bombardier CS300 takes first flight 'I don't see him winning': Donald Trump weighs in on Jeb Bush Despair in Donetsk over rising prices Gary Glitter sentenced to 16 years for child sex offenses Carnival kicks off in Rio with famous parade competition 'America's Next Top Model' contestant murdered in triple homicide Elijah Marsh's family grateful for support: Friend Raw footage of escaped llamas running amok in Arizona Islamic State fighters smash priceless artifacts in Iraqi museum Comments AA More Related to this Story energy Video: Athabasca spill adds to Alberta oil's image problem Energy Video: Where do average Americans stand on the Keystone pipeline?