Environmental groups are suing the Canadian government and Irving Oil Ltd, alleging the federal environmental assessment planned for a proposed…refinery in New Brunswick is too limited, their legal defense fund said on Monday…Ecojustice…launched the action on behalf of the Conservation Council of New Brunswick and Friends of the Earth Canada…"The law is clear; the federal government must conduct an assessment of the entire project in order to evaluate the impact this refinery will have on the health of the region's residents and the environment," Ecojustice lawyer Justin Duncan said in a statement.