> electric vehicles, which need even more cobalt The headline reference to smartphones made me chuckle. Sure, they're the big thing right at this moment, but

> electric vehicles, which need even more cobalt The headline reference to smartphones made me chuckle. Sure, they're the big thing right at this moment, but if electric cars take off they way they look like they could, their cobalt use will massively eclipse that of our dinky little pocket computers. From what I understand, there is a major supply bottleneck here obstructing the path to exponentially increasing our electric transportation, worse than with the more commonly discussed lithium. Any story about sourcing materials used in batteries should at least be looking at the impact of producing an additional 500 million+ pounds of them a year (and that's just to support Tesla's current projections). [Not trying to smear EVs by the way, I think they're great and I want one, just pointing out that there are still significant logistical issues to consider.]