28 July 2010
Biodiversity is, as far as science can tell, one of the most unique aspects of Earth as a planet. While astronomers hope to find Earthlike planets out in the galaxy, as far as Earth’s solar system is concerned, it contains all of the biodiversity orbiting the Sun.
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28 July 2010
Most people, when they hear the term "national security" or similar, they're thinking about a country's ability to maintain its security of its nation. However, most people are not familiar with a similar term: food security. The idea behind food security is allowing all people in a region, nation, or the world to have enough food to cover their nutritional needs.(see en.wikipedia.org/wiki/Food_security)
28 July 2010
Biodiversity is the variation of life forms within a given ecosystem, or on Earth more generally. Maintaining biodiversity is important for many reasons, not least of which are the many direct benefits to humankind. Biodiversity tends to be closely tied in the popular imagination with philosophical or purely environmentalist ethics, but there are a number [...]
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28 July 2010
Biodiversity can have three general meanings. (see http://www.usaid.gov/our_work/environment/biodiversity/ for more information) First, it can be used to describe the complexity of biological species that populate a specific ecosystem. At a macro level, biodiversity is influenced by the natural environmental features found within an ecosystem. These features may include lakes, oceans, forests, mountains, deserts, and swamps. Within these macro-environmental features there usually exists overlapping or distinct micro-ecosystems.
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