It's Earth Day! We explain the history of the environmental event, what pollution is and what you can do to protect our planet, like recycling. Another thing that might help? Composting! We'll show you a program teaching students how to turn food waste into valuable nutrients for the soil. Plus, meet the new additions at the Lincoln Park Zoo: three adorable African lion cubs! There was a *golden* moment this week as a group of about 200 pups gathered together to honor one of their own. All this and more in our special Saturday episode of "Nightly News: Kids Edition."April 21, 2023
