All around the world, millions of people are flipping a switch, plugging in, and pressing an 'on' button every second. So how much electricity does humanity use? And how much will we need in the future? Discover how much energy it takes...

Have you ever wondered about what stops a disease from going global? Well pack your bags, because we're taking a world tour to visit seven of the most regional diseases out there, from Guinea worm to an Australian form of rabies, to...

In this video transcript, British Army pilot Barry Jones embarks on a historic journey to become the first person to fly an Autogyro around the world. Unlike helicopters, Autogyros are driven by a pusher propeller and supported by a...

When floods, droughts, and other natural disasters hit isolated and poor regions of the world, it can have devastating impacts on the local price of food. NASA Goddard research scientist Molly Brown is using satellite data to...

Between 2002 and 2016, the Gravity Recovery and Climate Experiment (GRACE) tracked the movement of freshwater around the planet.



NASA scientists used GRACE data to identify regional trends of freshwater movement, and...

Biomes are regions or landscapes of the world that are divided on the basis of climatic conditions, vegetation, and adaptation of flora and fauna. The regions with ice caps, like the Arctic, are known as Tundra, the Amazon is a...

The U.S. and China will likely be the two most influential countries for the rest of the 21st century. This is how people in 40 countries around the world currently view the two nations across a variety of global issues, according to a...

This video series features the filmmaker Jason Rodi on an exciting expedition to one of the most remote places on earth - Bouvet Island. The plan is to plant a time capsule filled with messages from all around the world.



In...

Tea is a beloved and versatile beverage with a rich history and a range of health benefits. From its origins in East Asia to its cultivation in various climates around the world, tea offers a variety of flavors and processing methods to...

Climate change is unfair. While rich countries can fight against rising oceans and dying farm fields, poor people around the world are already having their lives upended -- and their human rights threatened -- by killer storms,...

Cities pump out 70 percent of all global carbon emissions -- which means they also have the greatest opportunity to lower CO2 levels and energy consumption. Climate and data scientist Angel Hsu shares how cities around the world are...

From gnocchi and salchipapas to potato chips and french fries, it seems like every cuisine around the world has embraced the potato! And this humble tuber did not originate in Ireland or France, but near Lake Titicaca near the border of...

Hank brings you the SciShow news of the week. Recent record high temperatures and other extreme weather events around the world are climate change in action; a new fossil of an ancient human ancestor; some disturbing discoveries about...

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...

With fantastic new maps that show interactive, visual representations of urban fragility, Robert Muggah articulates an ancient but resurging idea: cities shouldn't just be the center of economics -- they should also be the foundation of...

Australians call them “runners." The British know them as “trainers.” Americans refer to them as “sneakers.” Whatever you call them, these casual shoes are worn by billions of people around the world. Today, roughly 23 billion shoes are...

Pupil outcome: I can describe different theories of population change and understand that climate change will impact population change. Key learning points: - There are different theories about how population will change in the future. -...

Greta Thunberg is a 16-year-old activist who has ignited a global youth-led environmental movement to fight climate change — we sat down with Greta to hear about her journey and to find out where we go next. » Subscribe to NowThis