How to bring affordable, sustainable electricity to Africa | Rose M. Mutiso

So right now, nearly one billion people globally don’t have access to electricity in their homes. And in sub-Saharan Africa, more than half of the population remain in the dark. So you probably all know this image from NASA. There’s a name for this darkness. It’s called “energy poverty,” and it has massive implications for […]

David Mackay: A reality check on renewables

Translator: Joseph Geni Reviewer: Morton Bast When the Industrial Revolution started, the amount of carbon sitting underneath Britain in the form of coal was as big as the amount of carbon sitting under Saudi Arabia in the form of oil. This carbon powered the Industrial Revolution, it put the “Great” in Great Britain, and led […]

A young scientist’s quest for clean water | Deepika Kurup

Every summer, my family and I travel across the world, 3,000 miles away to the culturally diverse country of India. Now, India is a country infamous for its scorching heat and humidity. For me, the only relief from this heat is to drink plenty of water. Now, while in India, my parents always remind me […]

How to Power the World for Just Two Cents | Frank van Mierlo | TEDxBeaconStreet

When I was a boy, we played with something called Vuurstenen which translates as “fire rocks”. One rock on its own is rather useless. But two rocks together? Two rocks together can give a magnificent spark. In that collision, there’s energy, a spark, and this is a talk about rocks, energy and the spark of […]

Farms under the sea could feed the world in 2050

This small mussel farm off the coast of California is a window into the future of feeding the planet. – You can feed a vast majority of the world’s populations on mussels alone. Earth’s population is growing so fast that we’ll need to produce more food in the next 50 years than we’ve raised in […]

Une solution béton pour stocker l’énergie solaire à faible coût | André Gennesseaux | TEDxParisSalon

Translator: André GENNESSEAUX Reviewer: Ivana Korom I found a means to solve the energy problem with concrete! Yes, concrete! Not to build dams or install windmills, but concrete to power the grid, make light and heat. I am going to explain it to you. Did you know that the cheapest energy today is solar energy? […]

How To Switch Your City To 100% Renewable Energy | One Small Step | NowThis

We’re talking and more. This is an exciting trend when you consider that 70% of our carbon emissions in the US come from cities. If more cities were to make the switch, we could have a real impact on our climate goals. To find out I’m in St. Petersburg, Florida, to talk to the mayor […]

School strike for climate – save the world by changing the rules | Greta Thunberg | TEDxStockholm

Translator: Akinori Oyama Reviewer: Peter van de Ven When I was about eight years old, I first heard about something called climate change or global warming. Apparently, that was something humans have created by our way of living. I was told to turn off the lights to save energy and to recycle paper to save […]

This Unlikely 1960s Space Tech Can Help Save the Bees | Rob Davis | TEDxMinneapolis

Translator: Hiroko Kawano Reviewer: Peter van de Ven You and I have an incredibly hard-working friend who is completely underappreciated and is in serious trouble. And there’s something out in space that can significantly help our friend. You’re going to love it. You’re going to love it. But first, let’s take a moment to appreciate […]