Try saying these words outloud. Hearing yourself as well as reading them is  double input. There are countless artists to list!! It was also completely easy to find suitable environmental words. Ultimately, almost all our language relates to physicality, emotionality, intellectuality or spirituality. These are ALL environmental issues…and cosmic issues. Do consider adding your own like-letter words in the response space below…
If you are an artist with the specified ‘letter’ name, add your name too!

Rrap    Rauschenberg    Rembrandt    Rubens    Raphael    Ray    Rimmington    Renoir    Rouault    rego    rainforest    rees    Richter    Riley    Diego Rivera

Rare    recycling    red data species     renewable resources    resource management      riparian      runoff

radio therapy    radiation    radio telescope    rainbow           raki    random        rationalization        rationale      re-creation      re-afforestation    rewarding    regardless      rhinoceros      ribbon worm    ring-around-a-rosy