English: http://en.wikibooks.org/wiki/Development_Cooperation_Handbook/Goal_7:_Ensure_environmental_sustainability

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The depletion of the Earth's resources is higher than the rate of regenerating resources. This means that we have not chosen a sustainable path of economic development. 

The MDG 7 acknowledges that development can be sustained only by environment conservation and recognizes the right of future generations to inherit an environment as preserved as the one that we are enjoying.

Although the rate of depletion of natural resources is decreasing, humanity is unable to protect plant and animal species at the risk of extinction.

South East Asia's contribution to green house gases increased by 82% in the past decade although per capita emissions remain the highest in the developed regions.

More than half the population of countries like Sierra Leone and Mozambique remain without access to safe drinking water.