97% of Climate Scientists Really Do Agree
AdultsEcologyGlobal Warming...Do 97% of climate scientists really agree that humans are the main cause of climate change? Yep! Here's what the 97 percent statistic *really* means.
Why Is Blue So Rare In Nature?
AdultsAnimalsEcology...Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. And the ones that do make blue? They make it in some very strange and special ways compared to other colors. In this video, we'll look at some very cool butterflies to help us learn how living things make blue, and why this beautiful hue is so rare in nature.
Inside an ICE CAVE! - Nature's Most Beautiful Blue
AdultsEcologyNature...Where do glaciers and icebergs get their beautiful blue color? This unique blue might be nature's most brilliant, and the color arises in a very special way thanks to some surprising interactions between light and water molecules.
What is the tragedy of the commons? - Nicholas Amendolare
AdultsEcologyGlobal Warming...Is it possible that overfishing, super germs, and global warming are all caused by the same thing? In 1968, a man named Garrett Hardin sat down to write an essay about overpopulation. Within it, he discovered a pattern of human behavior that explains some of history's biggest problems. Nicholas Amendolare describes the tragedy of the commons.
Mexico Earthquake Hit My School
AdultsEcologyNature...Marie was a victim of the Central Mexico (Puebla) Earthquake on September 19th 2017. While so many lost their lives, were injured, or lost their homes and property, Marie was lucky - her house didn't crumble, just a few cracks here and there, and her loved ones and family were all okay, and obviously, she didn't die. But it was one of the scariest moments in her life and one she will never forget. This is a scary story, a scary TRUE story.
Most hurricanes that hit the US come from the same exact spot in the world
AdultsEcologyNature...As Hurricane Irma bears down on the East coast, Floridians may be wondering where all the hurricanes come from, and why they all follow a similar course. In fact, Irma, Harvey, and Jose were all born on the other side of the Atlantic, off the coast of Africa, and the Sahara desert may be to blame.
The amazing ways plants defend themselves - Valentin Hammoudi
AdultsEcologyNaturePlants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external defenses that make them a less appealing meal - or even a deadly one. Valentin Hammoudi explains some of the fascinating ways that plants defend themselves.
When is water safe to drink? - Mia Nacamulli
AdultsEcologyHealthWater is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity - there are nearly 800 million people who still don't have regular access to it. Why is that? And how can you tell whether the water you have access to - whether from a tap or otherwise - is drinkable? Mia Nacamulli examines water contamination and treatment.
Why wildfires are necessary - Jim Schulz
AdultsEcologyNatureOur early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn't just humans who benefited from these natural phenomena. Even as they destroyed trees, fires also helped the forests themselves. Jim Schulz outlines the benefits of wildfire.
When a River Goes Missing, It's Kind of a Big Deal...
AdultsEcologyGlobal Warming...How does a river suddenly disappear? It gets stolen! How do you steal a river? With climate change!
How Did The Deepest Part Of The Ocean Get So Polluted?
AdultsEcologyGlobal Warming...Scientists have found trash in the deepest parts of the ocean, the Mariana Trench. What does this mean for us and the organisms living there?
How much of human history is on the bottom of the ocean?
AdultsEcologyHistory...Sunken relics, ghostly shipwrecks, and lost cities aren't just wonders found in fictional adventures. Beneath the ocean's surface, there are ruins where people once roamed and shipwrecks loaded with artifacts from another time.