Children are urged variously to do such things as:
Help save them. Screw up your own life. Turn your back on generations of hard-won effort and industrial progress. Feel bad about just about everything, Just look at what's happening to the polar bears. Turn off lights. Hassle your parents. Be afraid of global warming. Blame humanity for it.
Example here: http://www.thedailybeast.com/newsweek/2007/04/15/will-polar-bears-be-ok.html
'Sean Hussey and his twin sister, Erin, are only 9 years old, but they already know all about global warming. And they're worried, very worried. Teachers at their Hillsborough, Calif., school have shown them pictures of melting glaciers. Sean fears that polar bears will be left homeless. "I like polar bears a lot," he explains. Erin is also concerned about what she calls "the animal side" of climate change. "There are lots of animals that shouldn't die," she says. "The humans are the ones who are causing it." '
Meanwhile, the polar bears are doing OK.
What does that tell you about the scamsters of climate, class? Pretty shoddy? Yup - that's about right.
For a sensible view, one based on reality and not the wishful fantasising of malevolent zealots, here are some observations by Matt Ridley. Extract:
His writing was inspired by a study made by a polar bear expert Susan Crockford. It is available for download here at the Global Warming Policy Foundation site.
Her study is entitled '10 Good Reasons Not To Worry About Polar Bears'
That would make a good title for a display on the classroom wall would it not? The children would be pleased. Why not help put their troubled minds at rest?
[Hat-tip/inspiration: Booker here: http://www.telegraph.co.uk/earth/environment/globalwarming/9934109/Attenborough-should-check-his-facts-on-polar-bears.html#disqus_thread ]
Note added later on 17 March: The Heartland Institute in the States has produced an advertising-hoarding that could provide ideas for a wall display although it is perhaps too political for the classroom itself::
And another: More on polar bears and with more links here: http://nofrakkingconsensus.com/2013/03/17/seeing-polar-bears/
Note added 25 Oct 2017. More vindication of the position that polar bears are doing ok: https://polarbearscience.com/2017/10/24/death-of-the-polar-bear-as-climate-change-icon-validates-mitch-taylors-skepticism/