11. Biodiversity is the very foundation for all the Earth’s essential goods and services. The air we breathe, water we drink, and the food we eat all depend on the Earth’s rich biodiversity. While plants and animals keep us well fed and healthy, trees play an important role in absorbing greenhouse gases. Through photosynthesis, trees absorb and store atmospheric carbon, helping to combat global warming and purifying the air we breathe. Forests also control soil erosion and purify water.
Every aspect of our life is sustained by the Earth’s biodiversity. Biological resources must be conserved if they are to continue supporting life on Earth. Because when it is gone, dried up and dead, living things may be as well.

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