not quite that bad

Except several experts have surmised that at 3ºC we will experience civilizational collapse. Stefan Rahmstorf, for example, said recently that “We simply wouldn’t reach three degrees because… we’d be in such deep trouble that basically the economy collapses.”

Its a step in the right direction. I can’t help but wonder if ports should be moving away from tugboats entirely though. They weren’t strictly necessary for thousands of years of ocean shipping. Why do we need powered ships at all? Is it because we need container shipping? Because that might just be a feature of the highly globalized fossil fuel era.