Populations of animals, plants, and tress are becoming so small that are susceptible to small disasters such as flooding, severe thunderstorms, etc. Scientists have estimated that species are becoming extinct at a rate of one species per million per year. Today we are living among the sixth greatest extinction. Throughout the 20th century the causes of extinction such as: habitat degradation, overexploitation, agricultural monocultures, human-born invasive species, human-induced climate-change, have increased exponentially. The problem with this is that most people have no idea that this is occurring. What does this mean to us as humans? Biologists believe that mass extinction poses a threat to human existence. It is our duty to help save these species and put the world back together. The world before us suffered at least five mass extinctions, and was threatening to human existence. Our treatment of nature is just wrong. The destruction of habitats is increasingly a problem as development throughout the world is booming. It is up to us humans to save the species of flora and fauna that are being threatened today. If not, after the end of the century there will be a whole new species of flora and fauna, unrecognizably different from that existing today.
To read more on the extinction of more than half of existing species: http://news.independent.co.uk/environment/article2494659.ece
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