Pro-athletes are entertainers, and their definition of health differs from the average person's. Our bodies constantly expend significant energy just to function; for instance, about 1,400

Pro-athletes are entertainers, and their definition of health differs from the average person's. Our bodies constantly expend significant energy just to function; for instance, about 1,400 calories daily are used simply to keep us alive. This inherent energy cost, a legacy from ancestors who conserved energy for survival, explains our natural tendency to avoid unnecessary physical activity, even with modern access to food.

This insight comes from Daniel Lieberman, Edwin M. Lerner II Professor of Biological Sciences at Harvard University. For more, subscribe to Big Think on YouTube or read the video transcript.

Join host Jeff Corwin on a conservation adventure, beginning in Big Sur, California, to aid the California condor's recovery. At the Ventana Wildlife Society sanctuary, Corwin helps prepare

Join host Jeff Corwin on a conservation adventure, beginning in Big Sur, California, to aid the California condor's recovery. At the Ventana Wildlife Society sanctuary, Corwin helps prepare juvenile condors for release. Once critically endangered with only 22 individuals in 1982, the population has rebounded to approximately 500 worldwide, with 300 now free-flying. This remarkable success, involving captive breeding and tagging, demonstrates dedicated conservation.

Corwin learns about the challenges of protecting North America's largest flying bird, which has a slow reproductive rate. Later, he travels to Massachusetts to assist the Department of Fish and Wildlife in saving the unique saltmarsh sparrow, a species endemic to East Coast habitats.

Join Jeff Corwin on "Wildlife Nation" as he celebrates the Endangered Species Act and the dedicated men and women of American conservation. The program highlights the landmark legislation's

Join Jeff Corwin on "Wildlife Nation" as he celebrates the Endangered Species Act and the dedicated men and women of American conservation. The program highlights the landmark legislation's success by connecting with amazing species that have benefited from its protection.

Corwin assists conservationists in returning baby sea turtles to the ocean, catalogs baby crocodiles in the Florida Keys, and aids peregrine falcon recovery in New England. Teaming up with Defenders of Wildlife, Corwin invites viewers to join the adventure and witness the vital work protecting North America's iconic wildlife.

Paolo Taticchi opened TEDxPerugia PHOENIX, delivering an English talk on the intricate relationship between business and sustainability. He conveyed a powerful message: "The only time left to

Paolo Taticchi opened TEDxPerugia PHOENIX, delivering an English talk on the intricate relationship between business and sustainability. He conveyed a powerful message: "The only time left to reverse course is now."

A Professor of Business Strategy and Sustainability at University College London, Taticchi is a prolific author and consultant, having worked in over 20 countries. His profile has been mentioned over 200 times by international media like Financial Times and CNN, with Il Sole 24 Ore naming him the most influential Italian under 40.

This talk was given at a TEDx event, independently organized by a local community. Learn more at https://www.ted.com/tedx.

Retson's urban-rural migration journey led to the establishment of NFGCS Farms Limited, a thriving farming community in Gate Nassarawa State, Nigeria. This initiative employs hundreds and provides

Retson's urban-rural migration journey led to the establishment of NFGCS Farms Limited, a thriving farming community in Gate Nassarawa State, Nigeria. This initiative employs hundreds and provides essential amenities like healthcare and schools for the host community.

A chartered professional manager and innovative entrepreneur, Retson possesses over 15 years of expertise in Nigerian business management and consulting. His diverse background includes ICT, project management, business development, and financial instrument trading. He currently serves as National Coordinator & Secretary-General for NFGCS Farms Limited, dedicating his time to its success and leveraging his broad understanding of practical agriculture. He is also the convener of #occupynass & #occupynassunltd.

This talk was given at a TEDx event. Learn more at https://www.ted.com/tedx.

Geothermal energy, despite lower carbon emissions than coal, is not benign. Projects like Nevada's proposed Baltazor site highlight significant environmental and social costs. Geothermal

Geothermal energy, despite lower carbon emissions than coal, is not benign. Projects like Nevada's proposed Baltazor site highlight significant environmental and social costs. Geothermal development leads to habitat destruction (e.g., in Kenya and for Nevada's Dixie Valley toad) and violent evictions of indigenous communities.

Drilling releases toxic elements like mercury, arsenic, and boron into groundwater. Facilities also cause air pollution, including sulfur dioxide and hydrogen sulfide, contributing to acid rain and health issues, as seen in Iceland. Moreover, "enhanced geothermal systems" (EGS) utilize fracking technology, injecting high-pressure slurries that can poison groundwater and induce earthquakes, mirroring problems in the oil and gas industry.

Cultural neuroscience explores food's profound impact on brain function, emotions, and human identity. An international team investigates how to revolutionize food systems to save the planet while

Cultural neuroscience explores food's profound impact on brain function, emotions, and human identity. An international team investigates how to revolutionize food systems to save the planet while preserving our cultural and emotional essence. This crucial challenge determines humanity's future, with cultural neuroscience offering unprecedented insights into our relationship with nature through food.

The team features Dhyana Menon, who extracts neuro-scientific findings from multisensory food experiences; Golnoosh Mahdavi, Director of Innovation, guiding research on food, emotions, and culture; and Mario Ubiali, CEO of Thimus, an entrepreneur spearheading new visions.

This talk was given at a TEDx event, independently organized by a local community. Learn more at https://www.ted.com/tedx.

A circular economy for steel, cement, aluminum, plastics, and food could eliminate 9.3 billion tonnes of CO2 equivalent annually by 2050, matching all current transport emissions. Founder Dame

A circular economy for steel, cement, aluminum, plastics, and food could eliminate 9.3 billion tonnes of CO2 equivalent annually by 2050, matching all current transport emissions. Founder Dame Ellen MacArthur explains its crucial role in addressing climate change and building a resilient economy independent of finite resources.

The Ellen MacArthur Foundation, a UK charity, accelerates the transition to a circular economy through business, learning, insights, and communications.

Subscribe for more videos on the Ellen MacArthur Foundation YouTube channel. Learn more at our website and climate page. Connect on Instagram, Facebook, Twitter, and LinkedIn.

Mixed waste disposal is a global challenge, extending even to space junk. This talk presents a formula for community transformation, emphasizing personal responsibility as both the cause and

Mixed waste disposal is a global challenge, extending even to space junk. This talk presents a formula for community transformation, emphasizing personal responsibility as both the cause and solution to environmental issues.

When Chennai faced 5000 tons of daily garbage, social entrepreneur Mr. Natarajan founded NAMMA OORU. This initiative, with like-minded individuals, educates citizens on waste segregation and composting. His formula, "Earth Ethics - Role of Youth," offers a valuable perspective on tackling waste. This TEDx talk provides further insights. Learn more at ted.com/tedx.

Human objects in space are creating dangerous clutter. MIT Assistant Professor Danielle Wood advocates for sustainable space technology, stressing the need to respect both people and the

Human objects in space are creating dangerous clutter. MIT Assistant Professor Danielle Wood advocates for sustainable space technology, stressing the need to respect both people and the environment in future missions. This approach is crucial for managing the "industrial waste" accumulating beyond Earth.

One promising solution involves a wax-based fuel for satellites, made from beeswax and candle wax. This less toxic and more affordable alternative would help bring objects closer to Earth for safe deorbiting and destruction, offering a sustainable way to address space debris.

Watch the newest video from Big Think: https://bigth.ink/NewVideo. Learn skills from top minds at Big Think Edge: https://bigth.ink/Edge. Read the full transcript: https://bigthink.com/videos/sustainable-space-tech.