TED Talks
TED: Let's launch a satellite to track a threatening greenhouse gas | Fred Krupp
When we talk about greenhouse gases, carbon dioxide gets the most attention -- but methane, which often escapes unseen from pipes and wells, has a far greater immediate impact on global warming. Environmentalist Fred Krupp has an idea to...
MinuteEarth
Four Reasons Our Brains Suck At Pandemics
Certain cognitive biases cause humans to make unsafe decisions in a pandemic, making a terrible disease even worse.
SciShow
The Scary American Bat Die-Off
In North America, bats are in mortal danger, and the poor little guys can't even activate their own Bat-Signal to call for help. A terrible infection is ravaging their populations, and it's as serious as a heart attack. Hank has the...
Amoeba Sisters
Biomagnification and the Trouble with Toxins
Explore biomagnification which can happen when toxins become more highly concentrated when moving up through trophic levels in the food chain. Uncontrolled use of DDT is used in video as an example. Learn why bioaccumulation can occur in...
TED Talks
Johan Rockström: Let the environment guide our development
Human growth has strained the earth's resources, but as Johan Rockström reminds us, our advances also give us the science to recognize this and change behavior. His research has found nine "planetary boundaries" that can guide us in...
TED Talks
Carolyn Porco: Could a Saturn moon harbor life?
Carolyn Porco shares exciting new findings from the Cassini spacecraft's recent sweep of one of Saturn's moons, Enceladus. Samples gathered from the moon's icy geysers hint that an ocean under its surface could harbor life.
TED Talks
Lisa Margonelli: The political chemistry of oil
Speaking one month after the massive Gulf of Mexico oil spill, Lisa Margonelli shows how drilling moratoriums and executive ousters make for good theater, but distract us from the issue at heart: our unrestrained oil consumption. She...
TED Talks
Eben Bayer: Are mushrooms the new plastic?
Product designer Eben Bayer reveals his recipe for a new, fungus-based packaging material that protects fragile stuff like furniture, plasma screens -- and the environment.
TED Talks
TED: The 15-minute city | Carlos Moreno
Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the...
TED Talks
TED: The energy Africa needs to develop -- and fight climate change | Rose M. Mutiso
In this perspective-shifting talk, energy researcher Rose M. Mutiso makes the case for prioritizing Africa's needs with what's left of the world's carbon budget, to foster growth and equitably achieve a smaller global carbon footprint.
TED Talks
Michael Archer: How we'll resurrect the gastric brooding frog, the Tasmanian tiger
The gastric brooding frog lays its eggs just like any other frog -- then swallows them whole to incubate. That is, it did until it went extinct 30 years ago. Paleontologist Michael Archer makes a case to bring back the gastric brooding...
TED Talks
TED: Hunting for dinosaurs showed me our place in the universe | Kenneth Lacovara
What happens when you discover a dinosaur? Paleontologist Kenneth Lacovara details his unearthing of Dreadnoughtus -- a 77-million-year-old sauropod that was as tall as a two-story house and as heavy as a jumbo jet -- and considers how...
SciShow
Why Depression Isn’t Just a Chemical Imbalance
Depression is a common disorder, and though it might seem like we’ve got it figured out, what it is and how to treat it is actually way more complicated than we think.
TED Talks
TED: How PhotoSynth can connect the world's images | Blaise Agüera y Arcas
Blaise Aguera y Arcas leads a dazzling demo of Photosynth, software that could transform the way we look at digital images. Using still photos culled from the Web, Photosynth builds breathtaking dreamscapes and lets us navigate them.
MinuteEarth
How This River Made Chimps Violent
When a group of apes got split apart, slight differences in their new environments led to big differences in future generations.
MinuteEarth
Dogs vs Cats: The Diversity Paradox
Different dogs look incredibly different - but that doesn't mean they are necessarily more diverse.
TED Talks
TED: The fastest way to slow climate change now | Ilissa Ocko
Cutting methane is the single fastest, most effective opportunity to reduce climate change risks in the near term, says atmospheric scientist Ilissa Ocko. That's because, unlike carbon dioxide, methane's warming power doesn't come from a...
Crash Course
Comparative Anatomy: What Makes Us Animals - Crash Course Biology
Hank introduces us to comparative anatomy, which studies the similarities and differences in animal anatomy to support the theory of evolution and the shared ancestry of living things.
TED Talks
Kelly Wanser: Emergency medicine for our climate fever
As we recklessly warm the planet by pumping greenhouse gases into the atmosphere, some industrial emissions also produce particles that reflect sunshine back into space, putting a check on global warming that we're only starting to...
TED Talks
Rob Harmon: How to keep rivers and streams flowing
With streams and rivers drying up because of over-usage, Rob Harmon talks about a clever market mechanism to bring back the water. Farmers and beer companies find their fates intertwined in the century-old tale of Prickly Pear Creek.
TED Talks
Paul Gilding: The Earth is full
Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.
TED Talks
Hadyn Parry: Re-engineering mosquitos to fight disease
In a single year, there are 200-300 million cases of malaria and 50-100 million cases of dengue fever worldwide. So: Why haven't we found a way to effectively kill mosquitos yet? Hadyn Parry presents a fascinating solution: genetically...
TED Talks
Kate Stone: DJ decks made of ... paper
"I love paper, and I love technology," says physicist and former sheep herder Kate Stone, who's spent the past decade working to unite the two. Her experiments combine regular paper with conductive inks and tiny circuit boards to offer a...
SciShow
It's Official, Life Could Survive on Enceladus
Enceladus’ environment could totally be habitable for at least one real-world microbe and we just found the oldest supernova.