For example, people living centuries ago in Mesopotamia understood how to use adjustable "wind boards" to keep homes cool in summer and warm in winter. Humans have also long known how to use water and plants for "biological microclimate control," greatly reducing indoor temperatures, dust, and chemical pollution, yet with no less effect than air conditioning-all while avoiding the sacrifices demanded by a large system.
例如在千百年前的中東兩河流域，住民就知道利用調整「迎風板」，讓住屋冬暖夏涼；而善用「藍」（水）與「綠」（植物）進行「生物性微氣候控制」，也可大幅降低室內的溫度、微塵和化學污染，效果不比空調差，又可以輕鬆擺脫大系統的宰制。