fresh air

For decades, environmentalists have been dreaming about climate-friendly transportation. The arrival of hybrid and electric cars has brought us one step closer to travelling without damaging the planet. And this year, a California start-up promises to push the technology even further by rolling out the first mass-produced solar-powered car. Our NodeXL #ddj mapping from February 22 to 28 features this story alongside an investigation by the Guardian into deaths of migrant workers in Qatar, a cross-border project revealing Hungarian money flowing overseas, and a creative infographic about animals in space.