I was speaking to Quentin S Crisp the other day about Schultz's commitment to the environment. Before getting into comics Schultz worked as a a commercial illustrator but eventually quit his job, partly 'cos he wanted to produce Xenozoic Tales and partly 'cos he didn't feel comfortable helping to sell a load of environmentally unfriendly junk. The evironmentally-themed Xenozoic Tales went on to win Schultz a bunch of awards and cemented his professional reputation as a writer and artist. Nice to see someone standing up for their principles and have it all work out for them.
You can see more Schultz art here and here and here and here