RECENTLY, an advertisement showed how super-models are trying to promote an eco-friendly lifestyle through their outfits made with materials that are less polluting, less harmful to the environment and the earth, which, in other words, is called a green method of living. Comparing black, a trendy colour for evening parties, with this green way of resource utilisation is not only interesting but also reflects the fact that global environmental issues -- climate change to be precise -- have caught the attention of everyone. The problem Climate change is one of the greatest environmental, social and economic threats that the planet faces at the moment. Scientists say that the earth's average surface temperature has risen by 0.76