Biodiversity is the variety of life: the different plants, animals and micro-organisms, their genes and the ecosystems of which they are a part. It constitutes the most important working component of a natural ecosystem. Biodiversity helps maintain ecological processes, creates soils, recycles nutrients, has a moderating effect on the climate, degrades waste, controls diseases and above all, provides an index of health of an ecosystem. The rich biodiversity of ...
Since life began on earth, changes in the global climate have affected the distribution of organisms as well as their interactions. However, human-induced increases in atmospheric concentrations of greenhouse gases are causing much more rapid changes in the earth's climate than have been experienced for millennia. Evidence of global warming is plentiful and includes data on satellite-measured sea level change, lengthened growing season and increased precipitation ...