Porsche found a way to 3D-print lightweight pistons that add more horsepower

Re:Porsche found a way to 3D-print lightweight pistons that ... by funcDropShadow on Tuesday July 14, 2020 @09:31AM (#23831696)

But the question whether they really produce less pollution over their whole life time is still not settled. Production of the battery pack is quite energy intensive, lithium and neodym mining is not without problems. And you have to move around the battery pack all the time.

If electrical energy storage were the most economic one, I would expect at least one species to do that. Instead, they all store their energy in chemical storage mechanisms, i.e. fat, glycogen, ATP/ADP etc.

In order to solve the climate problems, it would be enough to synthesize gasoline from C02 in the athmosphere using renewable energy sources. A break through here, could immediately revert the whole trend towards electric vehicles. Of course this would not completely solve the pollution problem. Just CO2 pollution.

[ Parent | on HN ]

Re:Porsche found a way to 3D-print lightweight pistons that ... by HeadsUpHigh on Wednesday July 15, 2020 @06:20AM (#23843290)

It is 100% settled. This story about EVs producing more CO2 is a myth from an MIT study that was misinterpreted by a blog paid by an oil PR firm. And it seems to still be working despite the time that it has passed and despite the fact that the MIT team came forward debunking it. A Nissan Leaf for example takes 2 years to reach the breakeven point in CO2 production.

[ Parent | on HN ]