It interacts with, and depends on, the non-living components of the planet: atmosphere, oceans, freshwaters, rocks, and soils. Humanity depends totally on this community of life, this unique biosphere, of which we are an integral part.
The 1992 United Nations Earth Summit defined
An advantage of this definition is that it seems to describe most circumstances and presents a unified view of the traditional three levels at which biological variety has been identified, species diversity, ecosystem diversity and genetic diversity.
Biodiversity’s relevance to human health has become more evident as scientific evidence builds on the global health implications of biodiversity loss. This issue is closely linked with the issue of climate change, as many of the anticipated health risks of climate change are associated with changes in biodiversity (e.g. changes in populations and distribution of disease vectors, scarcity of fresh water, impacts on agricultural biodiversity and food resources etc.)
Some of the health issues influenced by biodiversity include dietary health and nutrition security, infectious disease, medical science and medicinal resources, social and psychological health.
Our planet is one mass of biodiversity teeming with incredible variations in land and water forms, plant and animal species, birds, insects, the lists are endless. From the time humans inhabited this earth, there has been a consistent and ongoing reduction in biodiversity due to our own actions, we have pillaged and raped our earth.
Globally we have destroyed habitats and ecosystems. Our history books will tell the story, extinction, deforestation, desertification, uncontrolled urban development, overpopulation, mining for natural resources, poor waste management systems to name a few. Places where rivers once ran and water was plentiful are now deserts. Where forests stood tall and green as far as the eye could see, the land is barren. Animals have been hunted and many of our species, like the Rhino, are in a critically endangered position.
When do we as an intelligent, thinking species say enough and collectively take action, before it is too late? The sad truth is, for many species, it is already too late. They are now extinct. Science even has a term for this, it is known as the Holocene extinction event, it is the impact we as humans are having on our environment. It has been argued that if the rate of extinction continues at current levels, we will see the elimination of many species within the next 100 years. Quite simply, we are destroying our planets biodiversity.
Help us conserve our biodiversity in Zimbabwe and support a worthy project such as the Wildlife Environment Protection Units (WEPU), the Green Funds and the Green Zambezi Alliance. Together we can make a difference. http://www.environmentafrica.org www.environmentafrica.orgPost published in: Environment