Discuss the role of healthy ecosystem services as a pre-requisite for a wide range of economic, environmental and aesthetic goods and services.

Explanation

Healthy ecosystem are the base for a range of economic, envrionmental and aesthetic goods and services. The products of ecosystem processes are named as ecosystem services, for example, healthy forest ecosystem purify air and water, mitigate droughts and floods, cycle nutrients, generate fertile soils, provide wildlife habitat, maintain biodiversity pollinate crops, provide storage site for carbon and also provide aesthetic, cultural and spiritual values. Though value of such services of biodiversity is difficult to determine, it seems reasonable to think that biodiversity should carry a hefty price tag.
Robet Constanza and his colleagues have very recently tried to put price tags on nature's life-support services. Researchers have put an average price tags of US $ 33 trillion a year on those fundamental ecosystems services, which are largely taken for granted because they are free. This is a nearly twice the value of the global gross national product (GNP) which is US $ 18 trillion.