How many hours did you spend last weekend out in nature, trail walking or bird-watching? In fact, how many hours did you spend last year? You are likely to count the number of hours with ease.Why is nature worth maintaining contact with, and preserving? The value of the worlds ecosystem services and natural capital has been estimated to be US$33 trillion, nearly double the annual global GDP output. This may come as a surprise, because society does not fully appreciate the true value of essential life nutrients such as clean water and air, food, medicinal plants and cultural and health benefits afforded to us by mother nature.
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