While U.S. border monitors were busy looking for terrorists in cargo containers, a slew of invasive species slipped unnoticed into the country.

Whatever that sheen in the Gulf is, it's not BP's fault, okay??

If carbon is a risk (and it is!), the market should adjust for that, valuing companies with high "exposure to climate change" less than those that are climate-resilient. But since markets don't seem to ever do what they should in theory, that hasn't happened yet.

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Electric vehicles are only as climate-positive as the electric grid that fuels them, so in places like China where coal-fired electricity reigns, EVs can account for more carbon than gas-powered cars.

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How a recycling company renovates its office: it uses trash. TerraCycle's new digs use soda bottles and vinyl records for walls, old doors for desks, scrap carpeting, and more.

Cheap solar panels mean more solar installers.