Public Works and Government Services Canada
Symbol of the Government of Canada

The Environmentally Responsible Construction and Renovation Handbook - Text Description

4.3 The Greenhouse Effect

This pictorial representation shows the greenhouse effect on Earth. The sun heats the Earth of which 22% is reflected by the atmosphere, 17% escapes into the atmosphere, 9% is reflected by surface or dust and haze in the air and 20% is absorbed by the surface. The infrared radiation is emitted by clouds and gases creating greenhouse gases.

End of Description

Back to The Greenhouse Effect

4.5 Canada's CO2 Emission Levels

This graph shows the top 10 CO2 emitter countries in 1992 in thousand metric tons. The United States was the top emitter at 5,000,000 metric tons, while Italy was in 10th spot.

End of Description

Back to Canada's CO2 Emission Levels

4.6 Energy Reduction is a Sound Business Practice

This graph shows shows the top 10 CO2 emitters countries in 1994 per capita, in metric tons. The United States was the top emitter at 20 metric tons per capita, while Italy was in 10th spot.

End of Description

Back to Energy Reduction is a Sound Business Practice

6.2 The Hydrologic Cycle

This image describes the hydrolic cycle: the continuous movement of water on, above and below the surface of the earth.

End of Description

Back to The Hydrologic Cycle

6.3 Water Quality

This image describes how contaminated water is treated in a sewage treatment plant.

End of Description

Back to Water Quality

10.2 Federal Office Building Waste Composition

The image summarizes the average waste composition (by weight) from the five largest properties (DND HQ, Place du Portage, Phases III).

End of Description

Back to Federal Office Building Waste Composition