Question

essay on nature conservation

Answer 1

Nature conservation is the sustainable use and management of natural resources including wildlife, water, air, and earth deposits. Why is nature conservation so important? Because humans require it for their good health. Human health relies on a healthy environment. Healthy ecosystems produce fresh water, food, timber, fibre and medicines. A healthy ecosystem purifies our water, cleans our air, moderates the climate, provides carbon storage options and regulates floods. Trees and plants consume carbon which has continuously increased our planet’s temperature, increased storms, sea level rises and freshwater glacier melting that threatens lives. Protecting the world’s forests from destruction is an important step to avoid the harmful effects of greenhouse gas emissions which greatly affect the temperature of the Earth. Global warming threatens the integrity of marine and terrestrial habitats and interrupts natural cycles such as migration and hibernation. It is clear that the current climate we enjoy has not always been the climate that has existed in the past. Climate change is the most significant conservation challenge we face today.
Water is another biggest conservation issue of all. What would happen if China and India, which depend on the vanishing glaciers of the Himalayas for their water, continue to pollute the rivers, and then run out of water altogether? 
Our planet provides us with all of the resources that modern exploitation has given us, through wood, medicine, water, plants and animals to eat, metals, vitamins, minerals. Nature has given us so much. If we don't conserve, we lose these precious privileges to exploitation and abuse of resources.
We need to conserve natural resources because humans have a tendency to go through them faster than they can be renewed. Conservation is simply a prudent insurance policy against the unknowns of the future.   If we conserve the resources now it will ensure that we have them to use for future generations.

Answer 2

Conservation biology, or conservation ecology, is the science of analyzing and protecting Earth's biological diversity. Conservation biology draws from the biological, physical and social sciences, economics, and the practice of natural-resource management. Conservation ecology addresses population dynamics issues associated with the small population sizes of rare species (e.g Minimum Viable Populations). The term "conservation biology" refers to the application of science to the conservation of genes, populations, species, and ecosystems. Conservation biology is the scientific study of the phenomena that affect the maintenance, loss, and restoration of biological diversity.

Biologist Bruce Walsh of the University of Arizona states three reasons for scientific interest in the preservation of species; genetic or medical resources, ecosystem stability, and ethics,and today the scientific community "stress[es] the importance" of maintaining biodiversity.

Biodiversity provides many ecosystem services that are often not readily visible. It plays an essential part in regulating the chemistry of our atmosphere, pollinating crops and generating water supply. Biodiversity is directly involved in recycling nutrients and providing fertile soils. Experiments with controlled environments have shown that humans cannot easily build ecosystems to support human needs; for example insect pollination cannot be mimicked by man-made construction. The total value of ecosystem services may amount to trillions of dollars in ecosystem services per annum to mankind.For example, one segment of North American forests has been assigned an annual value of 250 billion dollars;as another example, honey-bee pollination, a small segment of ecosystem services, is estimated to provide between 10 and 18 billion dollars of value per annum.The value of ecosystem services on one New Zealand island has been imputed to be as great as the GDP of that region.