ST-HYACINTHE, Que. - The leader of the Bloc Quebecois says he's disappointed with the results of this week's Montebello summit.

Summits involving the leaders of Canada, the United States and Mexico are necessary gatherings but more than just business leaders should be invited to participate, Gilles Duceppe said Wednesday.

Duceppe said discussions about international trade directly affect consumers and workers and it's unacceptable that these groups have no representation at the meetings.

The Bloc leader was speaking at a two-day caucus meeting in St-Hyacinthe, Que.

Mexican President Felipe Calderon, U.S. President George W. Bush and Prime Minister Stephen Harper concluded their two-day leaders summit on Tuesday.

Duceppe also said he hasn't had a chance to review the Tory's new green plan, which is a republished version of their own climate-change proposals that will not meet the Kyoto protocol targets set for 2012.

The Bloc leader said any future green plan must include plans for a carbon credit exchange as well as a territorial approach to greenhouse gas emissions.

Duceppe added that tougher standards must be placed on the automotive industry.