What are trees worth?
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...t. They also cool the air by passing water through their leaves. A healthy urban forest makes for a much more liveable city for us all. (The city of Melbourne understands this.) And trees clustered around your own house make your home cooler in the summer, reducing your energy bills. Low lying cactus and succulent plants do little or nothing nothing to cool the city, while gravel, concrete and artificial turf make your yard a blistering heat trap....
