Opening on May 2, “Degeneration/Regeneration" features the paintings of Scott Greenwalt and the 3D-printed sculptures of the collaborative team of Smith|Allen (Stephanie Smith and Bryan Allen) at Oakland’s Loakal Art Gallery. It shows how artists mediate nature through art. It’s not a new concept, not by a long shot. But it’s a fertile and relevant one. On one level, the show serves as an environmental call to arms. Any recent image of industrial Chinese cities affirms the show’s significance. On another level, it shows the way that urban folk experience digital representations of the natural world. This digitization can take place with photos and videos posted on social media. Google Earth allows viewers can visit scenes of natural or otherwise exotic climes. Finally, video games often occur in hyper accurate landscapes.