Three short documentaries from The National look at Canadian companies thriving despite the current economic downturn. Their secret: embracing today’s new green economy. As auto manufacturing plants begin to rust away, meet the small Mississauga-based company, Electrovaya, that’s creating 100% recyclable portable power packs for electric cars. Then track the success of a McGill University team building a silent snowmobile that could replace traditional two-stroke engines that are such big polluters. And lastly, take a look at an innovation from a former Cape Breton pipe-fitter Bob MacNeil; he’s invented a box that could cut your home heating bills by a factor of 10.