Monthly Chinese publication for kids ages 9 to 14. Written by a global team of award-winning authors and leading scientists, every issue brings a topic of the most recent findings in science and art to curious young minds. The topic of this volume is "Give Me Back the Clean Air": Consider the earth's atmosphere as a four-layer-chocolate cake... Well, the cake got mixed in some nasty grits. The worst kind is PM2.5, which accounts for most of the persistent "smog" problem that has had troubled all industrial nations. This issue of Front Vision Global will track down the most wanted pollutants, disclose where they come from, what damage they have incurred, and how we can contain them so that the clean air can be restored to our home planet.