As part of the summit, hundreds of schools across the country are signing up to the Let's Go Zero activity, aiming to become carbon-zero by 2030.

作为峰会的一部分，全国各地的数百所学校签署了“让我们走向零碳”这一活动，旨在2030年之前实现零碳排放。

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When researchers zero in on electrical activity in yet another area, they can tell which parts of commercial messages, if any, are encoded in the experimental subjects' long-term memories.

FORBES: In Search of the Buy Button

Though it may be an individual sport, parkour is neither a solitary activity nor a zero-sum game.

FORBES: Parkour and Entrepreneurs

According to a new study by the Centres for Disease Control and Prevention (CDC), which looked at five cities with high numbers of gang murders between the years 2003 and 2008, drug trading or usage and other criminal activity ranged from zero to 25% of all gang-related killings.

ECONOMIST: Gang violence