By Bob Weber THE CANADIAN PRESS Canada’s highest court is slated to rule Friday on federal environmental legislation in a decision expected to settle, for now the role of different levels of government in balancing the economic benefits and environmental costs of resource development. The Supreme Court has said it will deliver its ruling on the constitutionality of Bill C-69, known in Ottawa as the Impact Assessment Act and in Alberta government circles as the No More Pipelines Act. Depending on who you believe, the bill either ensures national standards on environment and climate change or pries open new doors for Ottawa to meddle in provincial business. “The government of Canada worked extensively with legal experts and provincial and territorial governments to develop the Impact Assessment Act,” said a spokesperson…