Peercoin, EverGreenCoin, EnergyCoin, SolarCoin and GENERcoin are some of the names of the coins that are here for the environment. There are obviously more, but these are the best ones in the market right now.
Can you add Earth token there. They resolve the issue of asset exchange. Well as the market keeps falling down the team are very silent on there project. I'm sure it will go back on track if bitcoin and altcoins are bouncing back.