Earth Day April 22, 2021 12:08 pm Earth Day: Tracking The Signs of Climate Change Natalie Lizarraga speaks to Dr. Sarah Nelson about the ways we can reduce our carbon footprint. US & World Videos 6:34 Questions remain after presumed death of Wagner chief 5:40 Listen To This: Sports explains the world 8:07 Listen To This: Over My Dead Body 4:27 Can You Solve a Rubik's Cube in Seconds? 3:06 Most skincare obsessed states