News briefs: Satellite array to sniff out pollution perps

Plus, more equality in solar panel buyers' incomes and R.I. wind factory gets rolling

Rendering of a new satellite that can be used to track methane emissions. Image: NASA Carbon Mapper.

Spies in the sky to unmask world’s big polluters

NASA, the State of California and other public and private partners are teaming up with a Carbon Mapper, a new emissions-tracking non-profit, to launch two satellites that will pinpoint large sources of CO₂ …