The Surprisingly Retro Future of Batteries

Thanks to Brilliant for supporting this episode of SciShow. Go to to learn more. [♪ INTRO] Renewable energy sources like wind and solar are awesome, but they have a downside—they’re intermittent. That means, if we want to make our grids more sustainable, we need to store some of the energy they produce for later. […]

Main messages of the UN World Water Development Report 2020, Water and Climate Change

Where The Shale Revolution Save America?

Experts on energy, including oil and gas, say that solar and wind are the energy of the future. But while consumers wait for the future expansion of alternative energy, the fossil fuel industry is pushing for natural gas to be a bridge to that future. In the US, drillers are busily tapping gas as well […]

Why Animals Take Care of Other Animals’ Young

Thanks to the Monterey Bay Aquarium for partnering with us on this episode of SciShow! It otter be a fun one. [♪ INTRO] Animals snuggling up with baby animals that are not related to them is internet gold. But memes aside, cute critters taking care of young that aren’t their own, or alloparenting, is a […]

How Green Energy Could Bring More Rain to Africa

♪♪♪ Africa’s Sahara desert is wide open and sparsely populated, a great source of sun and wind, and a prime location, some say, to build arrays of solar panels and wind turbines. And while replacing fossil fuels is great for fighting climate change, these power plants could bring more to the region than just tons […]

This Worm’s Gut Has No Way In or Out

{♫Intro♫} There are plenty of creatures out there with only one opening to handle the business of both taking in food and getting rid of the leftovers. Jellyfish, for example, get along fine with a mouth that’s also an anus. But there’s at least one animal out there that doesn’t have a gut opening…at all. […]

What does Net Zero emissions actually mean?

It’s easy to get lost in the numbers when we talk about climate cha… *DISTANT* The limit of 2 degrees or 1.5 degrees was agreed at COP21 in 2015. CO2 is at over 410ppm and emissions need to fall by… But there’s one number that is very easy to get your head around. Zero. Net […]

Why China Stopped Buying U.S. Recycling

Ever think about where your recyclables go after the blue bin? Well, for a long time, about a fifth of American mixed recyclables were heading across the sea to China. That makes sense since China has the largest manufacturing output in the world and they need the scrap material to create all your favorite paper […]

Water Is WAY Weirder Than We Thought

♪♪♪ Water is among the most abundant compounds in the universe. It makes up about 70 percent of the Earth’s surface and about 60 percent of our bodies. And the odds are pretty good that you’ve already encountered a bunch of it today. But despite how common water is, it continues to baffle scientists because […]

5 of the Best Measurements In Science

[ intro ] If you take all the humans who have ever lived, then, all told, members of our species have probably witnessed around a quadrillion sunrises — give or take. That’s a quadrillion tests of the hypothesis that the sun rises in the morning. Today’s humans use what’s called the Standard Model of particle […]