After reading this post, don't forget to enter our contest – you could win a new dishwasher. Plus, do you have your own story to tell? Send it to greenchallenge@canadianliving.com (no more than 300 words, please), and you could win one of 30 daily prizes. Kids have even more of a reason to care about environmental issues than adults do – after all, they're going to be here for longer. One way to share ecological values with the kids in our lives is through books. Here are a few examples you might want to consider next time a child in your life has a birthday coming up. The classic: The Lorax by Dr. Seuss Dr. Seuss was ahead of his time on this one, which Random House has just re-released on recycled paper. The Lorax tells a cautionary story of profit over preservation and teaches kids that our natural resources are not unlimited. I'd say it's my favourite Dr. Seuss book. The Canadian pick: Winston of Churchill: One Bear's Battle Against Global Warming by Jean Davies Okimoto Okimoto manages to present the concept of global warming to kids in a non-menacing way. Winston, a polar bear living in Churchill, Manitoba, is trying to stop the melting of the polar bears' habitat – by demonstrating to tourists and trying to convince them to help. For younger kids: Round Like a Ball! by Lisa Campbell Ernst This one I haven't read yet, but it looks like a good choice to teach younger kids about the earth and its relationship to them. How do you teach your kids about environmental issues? What are some of your favourite kids' books that deal with ecological topics? Today's code word: kids Read more: • How to find eco-friendly school supplies • Building eco-friendly schools • 6 ways to foster a love of nature in your children