Why Value Earth’s Ecosystems?

“Nature should be valued for its intrinsic worth, over and above any economic factors. However, right now, we’re losing nature because we don’t price it in . . . (TEEB).”

What Are Ecosystem Services?

Earth’s natural systems are humanity’s “life support,” providing valuable services upon which our ability to survive depends. From the air we breathe to the pollination of our food crops, we rely on ecosystems to provide us the essentials for life. Ecosystem services have been described as “The Benefits Nature Provides (Millennium Ecosystem Assessment, 2005).” The Millennium Ecosystem Assessment identifies 24 specific ecosystem services, and groups them into four categories: provisioning services (producing food, fiber, fuel, water, etc.), regulating services (regulating climate, air quality, water purification, pollination, etc.) cultural services (providing spiritual, educational, aesthetical values, etc.) and supporting services (soil formation, photosynthesis, water cycling and nutrient cycling) (Millennium Ecosystem Assessment, 2005).

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