http://www.millennium-project.org/millennium/Global_Challenges/chall-01.html
Global ecosystem services that provide life support and economic foundations are valued at $16–64 trillion. These are being depleted faster than nature can resupply. Human activity dominates 43% of Earth’s ice-free land surface and affects twice that area. In just 18 years (by 2030) demographers expect an additional 3 billion middle-class consumers drawing even more on these ecosystem services. In 2013, Earth Overshoot Day - the approximate date human resource consumptions exceed nature's budget - fell on August 20, two days earlier than 2012. Since 2001, Earth Overshoot Day has moved ahead on average 3 days per year. Unless we improve our economic, environmental, and social behaviors, the next 100 years could be disastrous. The Wealth Accounting and Valuation of Ecosystem Services, a global partnership, is developing guidelines for ecosystem accounting and their integration into national policy analysis.
Global ecosystem services that provide life support and economic foundations are valued at $16–64 trillion. These are being depleted faster than nature can resupply. Human activity dominates 43% of Earth’s ice-free land surface and affects twice that area. In just 18 years (by 2030) demographers expect an additional 3 billion middle-class consumers drawing even more on these ecosystem services. In 2013, Earth Overshoot Day - the approximate date human resource consumptions exceed nature's budget - fell on August 20, two days earlier than 2012. Since 2001, Earth Overshoot Day has moved ahead on average 3 days per year. Unless we improve our economic, environmental, and social behaviors, the next 100 years could be disastrous. The Wealth Accounting and Valuation of Ecosystem Services, a global partnership, is developing guidelines for ecosystem accounting and their integration into national policy analysis.
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