Introduction

The 2001 report of the UN-sponsored Intergovernmental Panel on Climate Change (IPCC),[1] a group of independent scientists, states that 'an increasing body of observations gives a collective picture of a warming world' with 'new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities'. Accordingly, the earth's temperature is projected to increase by up to 6° C by 2100 and sea levels are expected to rise up to 88 cm by 2100, the fastest rate of change since the end of the last ice age. Changes in rainfall patterns are also ...