Economic activities create jobs and wealth, but they also change and damage the environment. Managing these effects is essential for sustainable development.
Negative effects
- Deforestation from logging and clearing land for plantations and towns.
- Soil erosion and landslides where slopes are cleared of vegetation.
- Water pollution from factory waste, fertilisers and mining sediment.
- Air pollution and haze from factories, vehicles and open burning.
- Flash floods as construction reduces natural infiltration.
Key idea
Economic growth and environmental protection must be balanced so development does not destroy the resources it depends on.
Managing the effects
- Legislation such as the Environmental Quality Act 1974 to control pollution.
- EIA reports required before large projects begin.
- Reforestation, terracing and gabions to reduce erosion.
- Treating waste before releasing it and promoting recycling.
- Public awareness and green technology.
Example
Sediment washed from open-cast mines can silt up rivers and cause flooding downstream; retention ponds and land rehabilitation reduce this damage.
Remember
- Main effects: deforestation, erosion, pollution, floods, haze.
- Control: laws, EIA, reforestation, waste treatment.
- Aim = sustainable development that meets needs without harming the future.
Positive effects too
Not all impacts are harmful. Economic activities also create employment, improve infrastructure such as roads and towns, and can fund conservation. Some plantations replant degraded land, and industries increasingly adopt green technology. The goal is to weigh benefits against costs and choose methods that keep the environment healthy.
By managing these impacts wisely, Malaysia can continue to grow economically while protecting its forests, rivers and air quality for the future.