TED Talks
Pavan Sukhdev: Put a value on nature!
Every day, we use materials from the earth without thinking, for free. But what if we had to pay for their true value: would it make us more careful about what we use and what we waste? Think of Pavan Sukhdev as nature's banker --...
TED Talks
Tim Jackson: An economic reality check
As the world faces recession, climate change, inequity and more, Tim Jackson delivers a piercing challenge to established economic principles, explaining how we might stop feeding the crises and start investing in our future.
SciShow
Without Volcanoes, Earth Might be Dead
You might think of plate tectonics as destructive since it's the ultimate force behind earthquakes, tsunamis, and volcanic eruptions. But the slow movement of our planet's surface does a lot more than shake things up now and then. Some...
TED Talks
Tim Flannery: Can seaweed help curb global warming?
It's time for planetary-scale interventions to combat climate change -- and environmentalist Tim Flannery thinks seaweed can help. In a bold talk, he shares the epic carbon-capturing potential of seaweed, explaining how oceangoing...
TED-Ed
TED-Ed: The uncertain location of electrons - George Zaidan and Charles Morton
The tiny atoms that make up our world are made up of even tinier protons, neutrons and electrons. Though the number of protons determines an atom's identity, it's the electrons -- specifically, their exact location outside the nucleus --...
TED Talks
TED: The unexpected, underwater plant fighting climate change | Carlos M. Duarte
Once considered the ugly duckling of environmental conservation, seagrass is emerging as a powerful tool for climate action. From drawing down carbon to filtering plastic pollution, marine scientist Carlos M. Duarte details the...
SciShow
Seven Ways Poop Saves Lives
When’s the last time you thought about what your poop can do for you? If you think the answer is “not much,” do we have news for you!
TED Talks
TED: The true cost of oil | Garth Lenz
What does environmental devastation actually look like? At TEDxVictoria, photographer Garth Lenz shares shocking photos of the Alberta Tar Sands mining project -- and the beautiful (and vital) ecosystems under threat.
TED-Ed
Could you survive the real Twilight Zone? | Philip Renaud and Kenneth Kostel
You're traveling deep beneath the ocean's surface, where faint lights flicker and toothy grins flash. Your mission is to survive these depths and journey to the surface after sundown to feed. And as a hatchetfish, almost every other...
SciShow
Why Venus Could Doom 'Habitable' Exoplanets
There are exoplanets out there that seem very Earth-like, but if you look out and see liquid metal instead of liquid water, you might be in the Venus zone.
TED Talks
David Wallace-Wells: How we could change the planet's climate future
The climate crisis is too vast and complicated to solve with a silver bullet, says author David Wallace-Wells. What we need is a shift in how we live. Follow along as he lays out some of the dramatic actions we could take to build a...
TED-Ed
TED-Ed: Dark matter: The matter we can't see - James Gillies
The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible matter (and that goes beyond the four Greek elements) comprises only 4% of the...
SciShow
How Climate Change Affects Ocean Life | Compilation
We can see the effects of the climate crisis in many different ways here on land. But the oceans are also part of the interconnected, global system. So, here are a few ways that climate change affects our oceanic buddies.
Crash Course
Orbitals: Crash Course Chemistry
In this episode of Crash Course Chemistry, Hank discusses what Molecules actually look like and why, some quantum-mechanical three dimensional wave functions are explored, he touches on hybridization, and delves into sigma and pi bonds....
TED Talks
TED: How to decarbonize the grid and electrify everything | John Doerr and Hal Harvey
The good news is it's now clearly cheaper to save the planet than to ruin it, says engineer and investor John Doerr. "The bad news is: we are fast running out of time." In this conversation with climate policy expert Hal Harvey, the two...
Crash Course Kids
Planetary Plants
So we know what life needs here to work, and we've talked a little about what life COULD look like on other planets. But what about plant life? What could plant life look like on other planets? In this episode of Crash Course Kids,...
SciShow
The Chemist Decoding Our Cosmic Origins | Great Minds: Ewine van Dishoeck
The apparent void in the darkness of space is not as empty as you might think. In fact, it somehow holds the key to creating stars, planets, and even us! And Dutch super-scientist Ewine van Dishoeck made it her life's work to figure out...
Crash Course
Intro to Substitution Reactions - Crash Course Organic Chemistry
Substitution reactions can have really powerful effects, both good and bad, in our bodies. You might remember substitution reactions as displacement reactions from general chemistry, but (you guessed it!) in organic chemistry they’re a...
SciShow
What’s Hiding Inside The Crab Nebula?
The Crab Nebula is one of the most studied things in the sky, but it took glimpses through various wavelengths of the electromagnetic spectrum to get a full picture of what’s hiding inside!
SciShow
How to Date a Dead Thing
SciShow explains radiocarbon dating, the best way to date a dead thing!
SciShow
Three MORE Things You Missed Because of COVID
This year, science news has understandably focused a lot on COVID-19. But other science has carried on, and there have been plenty of amazing discoveries this year that we think deserve a spotlight, too!
SciShow
SciShow Quiz Show: Writer vs. Creator
Watch SciShow Creator Hank Green battle brains with SciShow Writer Ceri Riley.
SciShow
Doggerland: A Real-Life Atlantis
Though we probably won’t find a literal Atlantis beneath the sea, that doesn’t mean that a human settlement hasn’t ever been lost to the water. Meet Doggerland.
SciShow
Breaking News: Mars Suitable for Life
Earlier today, mission specialists with NASA's Mars Science Laboratory announced that they have found, for the first time, evidence of an ancient environment on Mars that could have sustained life. Hank tells us the specifics in this...