VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 31, 2008) - Canadian Zinc Corporation (TSX:CZN)(OTCBB:CZICF) (the "Company" or "Canadian Zinc") is pleased to report that Canadian Zinc and the Parks Canada Agency have entered into a Memorandum of Understanding ("MOU") with regard to the expansion of the Nahanni National Park Reserve and the development of the Prairie Creek Mine.

Two environmental groups are challenging the Canadian government's plan to conduct a cull of cormorants on a national park island in Lake Erie.

By Jennifer Ditchburn, THE CANADIAN PRESS OTTAWA - A large swath of the rugged, pristine northern shore of Lake Superior will soon become Canada's first national marine conservation area, ten years after the federal government and local residents began talking about the idea.

By Bronson, Jackie; Noble, Bram In 1996, the Geneva-based International Organization for Standardization released its ISO 14001 guidelines for environmental management systems (EMSs).