A guide to the good, low-carbon life

For about the last 10 years, environmental law professor Karl Coplan has been trying to winnow down his direct carbon-dioxide emissions with the goal of reaching four tons per year—about 40 percent of the average American's. ...

How transit scaling shapes cities

The research, published in Nature Sustainability, analyzed data collected from 48 metropolitan areas in the United States, including New York, Boston, Minneapolis and Atlanta, which showed a positive correlation between ridership, ...

Trash for tickets on Indonesia's 'plastic bus'

Dozens of people clutching bags full of plastic bottles and disposable cups queue at a busy bus terminal in the Indonesian city of Surabaya—where passengers can swap trash for travel tickets.

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