Transportation

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  tailpipe takedown

  California, D.C., and 16 other states are suing the EPA over its attempt to weaken auto rules.

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  If you build it, they will come

  As transit ridership dips, people flock to L.A.’s new train lines.

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  We Did the Math

  In defense of the East Coast hyperloop

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  Climate Desk

  If cities really want to fight climate change, they have to fight cars

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  Pipe Dreams

  How Trump could spend $1 trillion to fix America if he knew what he was doing

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  Internal combustion ending

  The market has spoken, and it says electric cars are the future.

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  Sic transit gloria

  Transit ridership is slipping in some big cities.

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  Pipe dream

  Elon Musk has started digging a tunnel under Los Angeles.

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  Let's science the shale out of it

  Innovation, not scarcity, could bring us peak oil as soon as 2020.