Mahendra Singhi: Cement's carbon problem -- and 2 ways to fix it...
Cement is vital to modernizing all kinds of infrastructure in the developing world -- but manufacturing it comes at an enormous environmental cost in the form of carbon emissions. Mahendra Singhi, ...
Dan Jørgensen: How wind energy could power Earth ... 18 times o...
Over the last two decades, the wind power industry has grown at a dizzying pace. (Fun fact: a single rotation from one of the world's most powerful wind turbines can generate enough electricity to ...
Katie McGinty: Smart solutions to decarbonize buildings | TED Ta...
Buildings are bad news for the climate -- the indoor spaces we spend most of our lives in emit 40 percent of the world's greenhouse gases. Rethinking how to create and occupy the spaces we inhabit,...
Gabrielle Walker: What you need to know about carbon removal | T...
What do woolly pigs have to do with climate change? They're part of a vital, ingenious and evolving strategy to take carbon out of the sky and store it safely -- in trees, soils, the ocean, buildin...
Axel Reinaud: How biochar removes CO2 from the air -- and helps ...
Biochar is a kind of charcoal that removes CO2 from the atmosphere, helping yield healthy crops and even producing abundant renewable energy in the form of electricity as it's made. This exciting c...
Sophia Kianni: Language shouldn't be a barrier to climate action...
Most scientific literature is written only in English, creating an alarming knowledge gap for the 75 percent of the world who don't speak it. That's a big problem for climate change -- because it's...
Sandrine Dixson-Declève: 5 keys to shifting to a well-being eco...
In 1972, the Club of Rome, an organization of thought leaders from around the world, published their first "Limits to Growth" report, a foundational text warning the world of the consequences of hu...
Al Roker, Al Gore, David Biello and Latif Nasser: The science of...
Floods, droughts, heat waves and cold blasts -- why is the weather becoming more extreme? Environmentalist and "America's weatherman" Al Roker discusses the link between climate change and disrupti...
Jack Dangermond: An ever-evolving map of everything on Earth | T...
What if we had a map of ... everything? Jack Dangermond, a visionary behind the geographic information system (GIS) technology used to map and analyze all kinds of complex data, walks us through th...
Nili Gilbert: The crucial intersection of climate and capital | ...
The financial sector often talks of decarbonizing investment portfolios as a way to fight climate change. But portfolios can be "cleaned" without having any real impact on the problem, says investm...
Gavin McCormick: Tracking the whole world's carbon emissions -- ...
What we know today about global greenhouse gas emissions is mostly self-reported by countries, and those numbers (sometimes tallied manually on paper!) are often inaccurate and prone to manipulatio...
Al Gore: How to make radical climate action the new normal | TED...
A net-zero future is possible, but first we need to flip a mental switch to truly understand that we can stop the climate crisis if we try, says Nobel laureate Al Gore. In this inspiring and essent...
Carol Farbotko and Ingrid Boas: Where will you be able to live i...
Humanity has always adapted to changing weather and moved to regions that best support cultural lifestyles and livelihoods. However, the rise in extreme weather is endangering coastal communities, ...
Zoe Pierrat: Earth's mysterious red glow, explained | TED Talk ...
In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet's surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. The...
モニカ・アラヤ: 都市が交通機関をデトックスする | TED Talk
電化を提唱するモニカ・アラヤは、清浄な空気を求める人々の願いに対して都市が反応を始めていると説きます。また、排ガスの出ないオートバイや車、バス、フェリーなどに移行し、10年かけて交通機関を完全に...
TED-Ed: 世界を動かすのに必要な電気の量は？ | TED Talk
世界中で何百万人もの人々が、今もこの瞬間にスイッチを入れ、コンセントを差し、「入」 ボタンを押しています。では、人類はどのくらいの電気を使っているのでしょうか？また、将来的にはどのくらいの電力が...
ファビオ・パクチ: ブラックホールのエネルギーを利用できるのか？ ―...
人類が地球を離れ、何千光年も何千光年も先にある惑星に都市をつくり、 人類が貿易と輸送の銀河網が整備されている遠い未来を想像してみてください。そのような飛躍を遂げるために何をしたらよいのでしょう？...
オラファー・エリアソン : 環境について語る子供の声に耳を傾けよう ...
ニューヨークのイースト・リバーに出現させた滝など巨大で耳目を集めるインスタレーション作品で知られるオラファー・エリアソンは、最新プロジェクトのアース・スピーカー (Earth Speakr) を...
ジャスミン・クロウ: 飢餓を終わらせるための戦いにおける誤り | TED...
この世界では無駄に捨てられる食品がかつてない規模で増えている一方で、９人に１人が夜お腹を空かせたまま床に就く状況がいまだにあるのはなぜなのでしょう？ 社会起業家のジャスミン・クロウは、世界的な飢...
サフィーナ・フセイン: インドで160万人の学校に通えない少女たちを力...
「女子教育が世界の数々の難問を解決するための大きな切り札になる」と社会起業家のサフィーナ・フセインは言います。先見の明のある講演の中で、今後５年間で160万人もの少女たちを学校に入学させるという...