GREENHOUSE EFFECT

Plant more tree.

Avoid using too much papers which came from the logs.

Imposes a heavy logging tax.

Ban the factories from producing toxic air.

Close down all incinerators

Force every vehicles (esp. lorries) to use LPG (liquidize petroleum gas)

Not open that much air-conditioner

Turn the cement pavement into grassland

Take full precaution of the hill fire in Autumn

All buildings should be seperated by at least one small garden

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