India has a historic opportunity to power its industrialization with clean energy -- and its energy choices will make or break the world's fight against climate change, says clean energy executive, physicist and author Varun Sivaram....

The lab-on-a-stick that lets us know if we’re pregnant is a genius bit of technology that can be used to quickly determine everything from whether there are nuts in our chocolate to whether we have COVID.

Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for you? To answer that question, Mary Poffenroth explains how sunscreens work and...

The coldest materials in the world aren't in Antarctica or at the top of Mount Everest. They're in physics labs: clouds of gases held just fractions of a degree above absolute zero. Lina Marieth Hoyos explains how temperatures this low...

Paul Andersen details the evolutionary processes of speciation and extinction. Stickleback evolution in Lake Loberg is used as example of rapid speciation. Adaptive radiation is illustrated using the Hawaiian honeycreeper. A brief...

We're headed towards a global food crisis: Nearly 3 billion people depend on the ocean for food, and at our current rate we already take more fish from the ocean than it can naturally replace. In this fact-packed, eye-opening talk,...

400 years after Hudson found New York harbor, Eric Sanderson shares how he made a 3D map of Mannahatta's fascinating pre-city ecology of hills, rivers, wildlife -- accurate down to the block -- when Times Square was a wetland and you...

Many of the bewildering correlations in our world - like that between Beryllium-7 and the Asian monsoon - are a result of huge and unseen forces that tie them together.

James Cameron's big-budget (and even bigger-grossing) films create unreal worlds all their own. In this personal talk, he reveals his childhood fascination with the fantastic -- from reading science fiction to deep-sea diving -- and how...

Sophie Howe is the world's only future generations commissioner, a new kind of government official tasked with advocating for the interests of generations to come and holding public institutions accountable for delivering long-term...

It sounds like science fiction, but journalist Stephen Petranek considers it fact: within 20 years, humans will live on Mars. In this provocative talk, Petranek makes the case that humans will become a spacefaring species and describes...

Want a Pineapple? If you want a pineapple, it's possible you can just run down to the store and get one. But, if you wanted to grow one, that's a lot more difficult depending on where you live. In this episode of Crash Course Kids,...

As benign as it may look up close, the tiny seaweed Caulerpa taxifolia can wreak quite a bit of havoc on coastal ecosystems. This super algae is very adaptable; it also grows fast and spreads easily. Eric Noel Munoz gives the details of...

There’s a huge seasonal difference in death rates that is propelled by a variety of factors including pathogen behavior and anatomical response to temperature changes.

If we don't act now on climate change, this coming century may be one of humanity's last, says António Guterres, Secretary-General of the United Nations. As the world recovers from the COVID-19 pandemic, Guterres urges us to use this...

Paul Andersen explains how plants use hormones to respond to their environment. The following hormones are detailed; auxin, cytokinins, gibberelins, abscisic acid and ethylene.

Este video es una traducción de "Garbage Doesn't Lie" -------------------- MinutoDeLaTierra proporciona una visión energética y entretenida de las tendencias en el medio ambiente terrestre -- ¡en sólo unos pocos minutos! MinutoDeLaTierra...

Explicamos cómo las mascotas pueden ayudar a tu sistema inmune, ¡sobre todo si aún no has nacido! IMÁGENES Daniel Stockman: http://www.flickr.com/photos/evocateur/6365009983/ Carmen Rodríguez:...

Este video es una traducción de "Bedbugs. Seriously!?" http://www.youtube.com/watch?v=IYVGRmZaSHk MinutoDeLaTierra proporciona una visión energética y entretenida de las tendencias en el medio ambiente terrestre -- ¡en sólo unos pocos...

As the world's population grows and the effects of climate change come into sharper relief, we'll have to feed more people using less arable land. Molecular biologist Jill Farrant studies a rare phenomenon that may help: "resurrection...

Paul Andersen explains the importance of selection in biology. Artificial selection occurs when humans choose traits that will be selected for or against. This has created the variety of domesticated animals and crops. He then describes...

New technology has revolutionized how we study wild animals, but it has also bogged down scientists with data...luckily, there's an *intelligent* solution.

An unnoticed industry worth two trillion dollars a year is influencing almost every carbon emission. Sustainability solution seeker Solitaire Townsend calls this sector the "X industry" (where "X" stands for influence), and it includes...

Around the world, living things have managed to build truly extraordinary ecosystems in some of the last places you would think to look. Understanding these ecosystems can help us protect or repair them, and it can also help us...