Why aren't more people investing in Africa's green energy? Environmental researcher Rebekah Shirley outlines the continent's immense potential for renewable power and calls for collaborative international investment -- and partnership -- in Africa's climate future. "Let's cut past the talk and focus on unleashing the avalanche of a clean energy future that Africa is ready to deliver," says Shirley.

Meet the fantastically colorful and astonishingly adaptable sea slugs that found a way to photosynthesize (or create energy from sunlight) like plants. Diving deep into these often overlooked creatures, invertebrate zoologist Michael Middlebrooks introduces the solar-powered slugs that lost their shells -- but gained the ability to directly harness the power of the sun.

When programmer Tiffani Ashley Bell learned that thousands of people in Detroit were facing water shutoffs because they couldn't afford to pay their bills, she decided to take action -- in the simplest, most obvious way possible. It's an inspiring story of how one person with tenacity and an idea can create monumental change -- and a demonstration that each of us can find our own way to help the world, even if it means starting without all the answers.

Stuck in an unfulfilling or stagnant job? To achieve a smooth departure without burning bridges, try this three-step exit strategy from career coach Gala Jackson. She'll help you move on to your next position with courage, confidence and clarity.

Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study of the physics behind how bugs take care of business and invites us to be more curious about the seemingly mundane.

Take a graffiti tour through ancient Pompeii with Roman archaeologist Jacqueline DiBiasie-Sammons and discover what 2,000-year-old scribblings from antiquity can teach us about life in modern times. A fascinating reminder of what we leave behind for future generations.

As a sports scientist, athlete and director of the Female Athlete Program at Boston Children's Hospital, Kate Ackerman understands that women athletes need more than pretty sports bras or new sneakers to achieve peak performance -- they need true investment committed to their health and well-being. Ackerman advocates for a long overdue sports medical system that's dedicated to the study and development of women athletes, supporting lifelong success on and off the field.

There's something simple we can all do to help the planet -- and it's probably not what you think. With one-third of all the food we produce globally each year being thrown away, entrepreneur Tessa Clarke believes that sharing more and wasting less is an underrated solution to the climate crisis. Learn more about how you can join the growing movement reducing waste and building community worldwide.