Every day we see articles about global warming, environmental disasters and many living species disappearing. And we either feel guilty about it or ignore it.

Take, for example, plastic products. They omit toxic gas when they are burned and cause environmental hazards. But they are a great invention and they must have helped the lives of billions of people.

Yes, we must know both the bright and dark side of the story. Those, like me, who don't have the time or means to know both sides should realise there are always two sides to the story.

Kaoru Saito (Mrs)