RAND > ISE > Projects & Resources > Our Future, Our Environment > Nature's Services

Of the over one million species of plants and animals on this planet, only a few -- such as crops, timber, and edible fish -- have market values. Most of the remaining species aid humans in less direct ways: by creating oxygen, decomposing organic matter, filtering air and water, and controlling pests. These natural processes can be seen as "services" provided by our ecosystems.


Next Section: Introduction

Nature's Services Splash Graphic
RAND Home Stay Informed Search RAND Publications View Cart