Environment

Effect from the outfall

Within nature, there is a cyclical balance. The concept of sustainable development acknowledges that by virtue of the fact that we lead modern lives, humans will always impact on nature. The challenge is to manage the way we impact on the earth so that human life and future generations can be supported by enough clean air, water and soil.

When humans impact on this natural system to an excess, such as disposal of waste, air pollution from traffic and industries, illegal dumping, excess consumption of water, inappropriate agriculture and horticulture practice, clearing land and sewerage outfalls to oceans (to name a few), problems result.

The result of this imbalance in the water cycle can damage river and ocean ecosystems. For example, algal blooms, death of aquatic flora and fauna, salinity. These are the relationships and balance between plant, animals and humans, all working together.

This is a fundamental change in biodiversity of marine ecosystems where the delicate balance of species is disrupted. The pollution causes dominant species to be reduced and species indicating the presence of pollution appear, such as green algae and worms. All ecosystems all have a complex balance in nature and when the balance is upset, this function cannot be performed. The more ecosystems that are changed, the overall health of the earth is decreased, interrupting the food chain and reducing the capacity of the earth to produce oxygen by photosynthesis.

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