How monitoring local water supplies can build community

Water insecurity is a touchstone for 2018. Our planet isn't running out of water, but various kinds of mismanagement have led to local water crises across the planet, directly threatening millions of people.

5G service rolls out—but not without controversy

Lampposts around downtown Los Angeles are being wired with fiber optic cable and shoebox-sized gadgets to beam the fifth and fastest generation of cellular data, known as 5G, into homes and mobile devices.

Lessons from cities that plan for their rivers

In Nairobi, Kenya, the government is destroying buildings constructed on riparian land in a bid to mitigate the impact of floods. This is just one example of a growing African city that hasn't adequately protected its rivers. ...

New study estimates the carbon footprints of 13,000 cities

Cologne, Manchester, and Montreal rarely make the list of the world's megacities. Yet they are all in the top 100 worldwide in terms of their carbon footprint. A new study says it is these cities, as much as the Jakartas ...

Hamburg leads charge with Germany's first diesel ban

Hamburg on Thursday became the first German city to ban older diesel vehicles from some roads, a measure that is largely symbolic but disputed by carmakers and the government.

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