What happens if you cut down all of a city’s trees? | Stefan Al | TED-Ed Animation

The TED-Ed animation “What happens if you cut own all of a city’s trees?” shares the history of two ancient cities and how their environment influenced their architecture. We may think of nature as being unconnected to urban spaces, but trees have always been an essential part of successful cities. By 2050, it’s estimated that over 65% of the world will be living in cities. So what makes trees so important to a city’s survival? Lesson creator Stefan Al explains the importance of sustainability in architecture--and some innovative ways to support a city’s survival.