Global WarningA group of 12 year old friends concerned about climate change proposes a new way to save the earth: amending the U. S. Constitution. Their project propels these activists on an amazing journey across Americaand all the way to Norwaywith plenty of outside the box hijinks and civil disobedience, as they work to save the planet and their futures on it. For sixth grader Sam Warren and his friends Catalina, Alistair, Jaesang, and Zoe, the effects of