A limited space within which living beings interact with nonliving matter at a high level of interdependence to form an environmental unit is called an ecosystem.

Robert Gravel, actor, author and theatre director (born 14 September 1945 in Montréal; died 12 August 1996 in Montréal). A free and unusual spirit, and a debonair yet sardonic actor, Gravel was endowed with enormous physical and emotional scope.

Main Forest TypesWorldwide there are 3 main forest types related directly to climatic zones: equatorial- and tropical-region forests, temperate-zone forests, and forests associated with colder climates.

THIS IS MY medicine cabinet," says Karl Schibli, his ice-blue eyes widening with the excitement of someone about to let a neophyte in on what he already knows. The object of Schibli's focused attention is a red Coleman picnic cooler on a shelf in his barn near Waterford, Ont.

Consider it a duel among doomsayers.

BILL ENOUY IS PROUD of his town. Oh, the jolly looking mayor of KIRKLAND LAKE, Ont., knows the main street needs a facelift, and that something should be done about the shortage of family physicians.

Environmental governance is a term used to describe how decisions about the ENVIRONMENT are made and who makes such decisions. It is a broad term that includes the formal and informal institutional arrangements for resource and environment decision-making and management.

 For those researchers working in the field of human history, the chronology of events remains a major element of reflection. Archaeologists have access to various techniques for dating archaeological sites or the objects found on those sites.

In 1999 the Maurice "Rocket" Richard Trophy was added to the NHL's awards for individual excellence.

The first period, from about the 1670s to 1860, has been called the "Tree Reserves Period." In this period the French and English tried to ensure a steady supply of ship timber.

Since 1967 WWF-Canada has been working with business, government and the public to stop the degradation of the planet's natural environment, and to build a future in which humans live in harmony with nature.

OK CONSCRIPTS, straighten up. Shoulders back, tummy in, turn down those thermostats. Uncle Jean wants you - and you and you - to reinsulate your homes, to change your driving habits and to think twice before you take the minivan to the corner store for a loaf of bread.

Having a nice summer? It's hard to imagine how: read a newspaper, watch TV, surf the Web, and you soon get the impression that the world is coming to an end. It's enough to make a person want to weep and hide.

It has been a long time since a Canadian government tried to force the auto industry to improve fuel efficiency. The energy crisis scares of the 1970s were still fresh memories when Pierre Trudeau's Liberals passed the Motor Vehicle Fuel Consumption Standards Act in 1982.

In Alberta political circles, Lorne Taylor is sometimes referred to as the "egghead redneck." It is a mark of the man that Taylor, who is Alberta's environment minister and who holds a Ph.D. in educational psychology, takes more umbrage at the first half of that moniker than the latter.

Grant Fahlman, 51, has lived his whole life on the farm 25 km southeast of Regina where his family settled when they came from Russia in 1889, and this year was the first in his memory that no burrowing owls raised their broods in his pasture.

Standing in the back of the room, Louise Comeau didn't even attempt to hide her anger.

The "3Rs Hierarchy of Waste Management" encourages people to reduce, reuse and recycle before considering other options for solid waste management. Reduction is at the top of the hierarchy because reducing waste (not creating waste in the first place) is the most efficient way to handle waste.

"I don't understand. Is this a loaded question?" The line of query had not been terribly abstract.

Waste may be defined as any substance for which the generator or owner has no further use. Hazardous wastes are waste substances whose disposal in the environment could potentially pose hazards to human health, jeopardize natural or agricultural resources, or interfere with other amenities.

 Concern over declining waterfowl populations in the early decades of the 20th century reached a crisis during the Prairie drought of the 1930s.

Commission of Conservation, established 1909 to provide Canadian governments with the most up-to-date scientific advice on the CONSERVATION of human and natural resources.

See also TIMBER TRADE HISTORY.

Nature Canada is a national, non-profit CONSERVATION organization, formerly known as the Canadian Nature Federation (1971-2004). The origins of Nature Canada date back to 1939 with the establishment of the magazine Canadian Nature.

Canadian Wildlife Federation, national, nonprofit, nongovernmental CONSERVATION organization founded in 1961 and chartered in 1962.