Go ahead! Have at it! Use any or all of these tools - or make up your own. Everyone can make climate change art.
6 Tools to Make Climate Change Art
Sort of following through on this, there is a discussion over on Lea Shick's blog at Arts for COP15 about what is good climate art.Essentially the discussion mimics the "what is art?" or the "what is good art?" convo that we are familiar with.