As the population of cities continues to increase, building tall appears to be the way to go, according to many experts. Tall buildings are "ethical in dense areas," but their designs must include green public space and amenities to strike a balance with density, this article notes. "Quite frankly, the most sustainable thing you can do is build tall and dense and leave the rest to nature," said Gregg Pasquarell, a director at SHoP Architects/SHoP Construction. "I know people love to think about solar panels, photovoltaics and other types of technology to be green, but no ... building a tall building is a thousand times more important than hanging solar panels all over your building."

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