A Clear View

When speaking of a building’s environmental sustainability, it has become common practice to describe its green “envelope. The outer shell of a building, separating the interior from what lies beyond, the envelope includes such elements as the roof, walls, foundation, and floors. All of these features can be “greened in various ways – and in previous issues we’ve explored both green roofs and living walls – yet the installation of windows is akin to punching giant holes in that envelope.

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June 24, 2019, 4:15 PM EDT

The Road Ahead

While there is no single hard and fast definition of self-driving cars, The Union of Concerned Scientists – a non-profit group founded by scientists and students at the famous Massachusetts Institute of Technology “to use the power of science to address global problems and improve people’s lives” – considers self-driving vehicles to be those where human drivers “are never required to take control to safely operate the vehicle.”