How low can you go? When it comes to carbon emissions, one brave family in Sweden is about to find out.

The willing victims in the One Tonne Life experiment are the Lindell family from Hässelby near Stockholm in Sweden. Nils Lindell, his wife Alicja and their two teenage children Hannah and Jonathan, will each try to live a bearable life while cutting their carbon dioxide emissions by as much as seven eighths – to just one tonne per person per year.

The Lindells were selected from more than 50 volunteer families, and yesterday they moved into a purpose-built wooden eco house – waving goodbye to their 1970s brick and concrete home as well as their pair of old petrol Renault Scénics. They get, by way of replacement, a single battery-powered Volvo C30 Electric.

I wasn’t able to make it to Sweden to quiz Volvo or the family directly, but via the miracle of email (and Volvo’s PR department) I did send some questions for them to answer. You can see the results below in this short video: