The World Is Ours to Cherish: A Letter to a ChildThis hopeful picture book written in the style of a letter gives kids an honest take on climate change and urges them to band together to help the planet. This hopeful picture book written in the style of a letter gives kids an honest take on climate change and urges them to band together to help the planet. The world is a big, beautiful place full of natural wonders everything from bees to rainfall can seem magical. The world is also changing.