The federal Competition Bureau is investigating the Canadian Gas Association to determine if it made misleading statements about the environmental impact of natural gas.

The Canadian Gas Association says building renewable electricity capacity to replace just half of Canada's current fossil fuel-generated energy could increase national costs by as much as $1.4 trillion over the next 30 years.

An industry-sponsored fund designed to help develop clean technology using Canadian natural gas is launching a $3-million call for project proposals.