Some pre-2000 newspaper articles:
Gangway: Energy Minister Marc Lalonde waves spectators out of his way as he prepares to test-drive a hydrogen-ammonia-powered car on Parliament Hill. At left, Governor-General Edward Schreyer talks to a representative of Canadian Alternate Energy Crop., which invited government VIPs to test the converted car.
Toronto Star - November 5, 1981
Ammonia -- Fuel of the Future?
Toronto Star - February 26, 1983
Ammonia power offers cars a chance to clean up their act
Toronto Star - March 7, 1983
Space photos may detail nature's woes
Toronto Star - November 14, 1983
The clean fuel we keep ignoring
Toronto Star - October 7, 1990