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Design and Applied Technology (Secondary 4-6)

Engineers can improve environment by better designs

1.4.2 Sustainable development: Environmental Issues

Greenhouse effect is a result from the absorption of heat generated by greenhouse gases into

the atmosphere, and the re-radiation downward of some of that heat.

The greenhouse gases ‘create’ a greenhouse to ‘trap’ heat in the lower atmosphere. The top

concern of the present is the intensification of the greenhouse effect by human activities. As

such, designers and engineers have to incorporate this concern into their product design, from

the fabrication process, to the servicing time, or any stage of the life cycle. For example,

environmental friendly engines can be designed and built for cars.

Greenhouse Effect

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