You might think that the US would be the hotbed for electric car sales given California's fondness for green transportation, but nope -- it's Europe. The European Automobile Manufacturers Association reports that EV sales in the European Union shot up 78 percent year-over-year in the first half of 2015. Most of the surge comes from the biggest countries, such as France, Germany and the UK, but even smaller nations saw an uptick. Bulgaria sold 20 EVs instead of 2, for instance. While the sales were still a drop in the bucket compared to conventional cars (just shy of 53,000 EU-wide), it's clear that the Old World is big on clean tech.