A beautiful ode to our planet and a clarion call to protect it. The perfect introduction to climate change for the youngest readers. Our planet seems tough, but it is fragile. Our planet seems big, but it needs us. Spare, lyrical text and exquisite illustrations show how seemingly small and insignificant changes -- from carbon molecules that become pollutants, to one degree on a thermometer, to one person's actions -- when multiplied, can have ripple effects that endanger the lives of all creatures on earth.