The six greenhouse gases were added to the list of toxic substances in November or December of 2005.
On February 5th, 2007. See this statement in context.
On February 5th, 2007. See this statement in context.
February 5th, 2007 / 7:50 p.m.
Acting Director General, Systems and Priorities, Department of the Environment
The six greenhouse gases were added to the list of toxic substances in November or December of 2005.
See context to find out what was said next.