Paper: School shootings affect school quality, housing value

A new paper co-written by a University of Illinois scholar who studies urban economics says that home prices within a school district affected by a mass shooting episode in a school declined by 7.8 percent – more than $15,000 ...

Hamburg is first German city to order diesel bans

Authorities in Hamburg said Wednesday they would ban some diesel vehicles from two major arteries to improve air quality, making the German port city the first to take the long-feared step.

EU chokes on own air quality standards

In the skies above Katowice in the heart of Poland's coal industry, Polish officials are deploying the latest weapon against air pollution: drones that inspect the city's chimneys.

California regulator OKs solar panels mandate for new homes

California moved a step closer Wednesday to requiring solar panels on new homes and low-rise apartment buildings starting in 2020, the first such mandate nationwide and the state's latest step to curb greenhouse gas emissions.

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