Many countries have been experiencing freak weather conditions.

Scientists blame this on high levels of carbon dioxide, a result of pollution.

Also alarming is the hole in the ozone layer, caused by CFC pollutants, found in spray cans, air-conditioners and fridges. Without the protective ozone layer, the earth is exposed to deadly ultraviolet rays.

Deforestation is another huge problem. Destruction of rain forests has wiped out countless species of fauna and flora.

Take a look closer to home.

The seas around Hong Kong are toxic with raw sewage and rubbish dumped by individuals and industrial companies.

Vehicle exhaust fumes are causing widespread air pollution. This is taking its toll on people's health and many complain of respiratory illnesses such as asthma.

It is time to protect our environment. People should use environmentally-friendly products and shops should discourage use of plastic bags.

Local authorities could introduce recycling of products such as glass and cans.

Be a friend of the earth! Protect the environment for yourself and future generations.

Wing-kam is a pupil of Buddhist Wong Wan Tin College