Protecting Our Mother Land
Though most of the world's surface is covered by water, since the Earth is so large relative to human horizons, there doesn't appear to be a shortage of land. However, when one begins to think of land in terms of a human resource, i.e., a producer of food, a provider of wood, an expanse for passage, one realizes that many portions are either too lacking in nutrients, too high in elevation, too prone to flooding, or too cold or ice-ridden for extensive use. Furthermore, habitable lands are becoming less abundant due to desertification (the expansion of deserts due to the misuse of land), agricultural expansions and rising sea levels. Since humans aren't the only species that need land, it isn't surprising that this resource is becoming limited for other forms of life too. In part as a result of this added stress on living things, we are also witnessing extinctions of grand proportions-at a rate of many thousands species per year. Since these losses are largely due to human actions, such as deforestation and non-native species introduction, many are beginning to pay attention to how we use and protect land. Recent ecological research has also recently provided a message of hope concerning the future well-being of life on this planet.
In the world today, scientists estimate that the Earth is losing at least 1 percent of species every ten years, and the percentage loss may be close to 5 percent. Even if only the lower rate persists, the Earth will have lost near half of its biological diversity by 2070. Can this be possible? Many esteemed scientists think so. While the future appears bleak, several recent insights tell us that we have the potential to significantly reduce what amounts to a biotic holocaust, one not witnessed on Earth for over 60,000,000 years. While there are hopeful signs in the area of human activities (such as increased acreage of nature preserves and national parks), the hope of which I speak of here stems from specific characteristics of the
In the world today, scientists estimate that the Earth is losing at least 1 percent of species every ten years, and the percentage loss may be close to 5 percent. Even if only the lower rate persists, the Earth will have lost near half of its biological diversity by 2070. Can this be possible? Many esteemed scientists think so. While the future appears bleak, several recent insights tell us that we have the potential to significantly reduce what amounts to a biotic holocaust, one not witnessed on Earth for over 60,000,000 years. While there are hopeful signs in the area of human activities (such as increased acreage of nature preserves and national parks), the hope of which I speak of here stems from specific characteristics of the