Could there be a simpler way for the music industry to go green? While acts like Coldplay and Justin Bieber have been focused on bicycle-powered stadium shows and kinetic dancefloors, for her new album Big Time (out Friday on Jagjaguwar) Angel Olsen took a more straightforward approach that’s replicable for artists of all sizes. Each vinyl or CD copy of the album purchased from her label’s website has carbon offsets built into the pricing, meaning the environmental impact that went into producing — and will go into consuming — the vinyl album (for $1 each) or CD (50 cents each) is effectively neutralized. All the proceeds from these surcharges go to Native, a public benefit corporation specializing in carbon offsets, which will use the money to purchase carbon offsets supporting the Medfor...