Sometimes, it’s a little hard to listen to dry, good-for-you messages about environmentalism. But a robot? That’s cute? Where I do start recycling?! That seems to be the idea behind the concept ‘Plant-O-Bot’, a robot that gains energy from the plants that it stores in its own body. The adorable little thing has an energy meter on the front that lets you know how the robot is doing: green and it and its plants are doing fine; red, and both the Plant-O-Bot and its green friends aren’t doing so hot. Designed by Bharoto Yekti, the concept aims to work as a kind of ‘living’ metaphor for our relationship to…