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The Conversation

Renewable energy is cheaper and healthier – so why isn’t it replacing fossil fuels faster?

  • Written by Jay Gulledge, Visiting Professor of Practice in Global Affairs, University of Notre Dame; University of Tennessee
imageA technician walks through a solar farm in Goma, Congo, in 2025.AP Photo/Moses Sawasawa

You might not know it from the headlines, but there is some good news about the global fight against climate change.

A decade ago, the cheapest way to meet growing demand for electricity was to build more coal or natural gas power plants. Not anymore. Solar and...

Read more: Renewable energy is cheaper and healthier – so why isn’t it replacing fossil fuels faster?

If evolution is real, then why isn’t it happening now? An anthropologist explains that humans actually are still evolving

  • Written by Michael A. Little, Distinguished Professor Emeritus of Anthropology, Binghamton University, State University of New York
imageInuit people such as these Greenlanders have evolved to be able to eat fatty foods with a low risk of getting heart disease.Olivier Morin/AFP via Getty Images

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

If evolution is real, then why is...

Read more: If evolution is real, then why isn’t it happening now? An anthropologist explains that humans...

White nationalism fuels tolerance for political violence nationwide

  • Written by Murat Haner, Assistant Professor, School of Criminology & Criminal Justice, Arizona State University
imageLaw enforcement set up in Green Isle, Minn., on June 15, 2025, as they search for a suspect in the killing of state Rep. Melissa Hortman and her husband, Mark. Stephen Maturen/Getty Images

Political violence among rival partisans has been a deadly and destabilizing force throughout history and across the globe. It has claimed countless lives,...

Read more: White nationalism fuels tolerance for political violence nationwide

Florida’s new open carry law combines with ‘stand your ground’ to create new freedoms – and new dangers

  • Written by Caroline Light, Senior Lecturer on Studies of Women, Gender, and Sexuality, Harvard University
imageAs of September 2025, Florida allows open carry and permitless carry, in addition to its stand your ground law.Joe Raedle/Getty Images News

Twenty years ago, Florida Gov. Jeb Bush signed the first “stand your ground” law, calling it a “good, common-sense, anti-crime issue.”

The law’s creators promised it would protect...

Read more: Florida’s new open carry law combines with ‘stand your ground’ to create new freedoms – and new...

Slavery’s brutal reality shocked Northerners before the Civil War − and is being whitewashed today by the White House

  • Written by Gerry Lanosga, Associate Professor of Journalism, Indiana University
imageThe Trump administration is reviewing Smithsonian exhibits on slavery and other topics to reflect certain values. Alex Wong/Getty Images

Long before the first shots were fired in the Civil War, beginning early in the 19th century, Americans had been fighting a protracted war of words over slavery.

On one side, Southern planters and slavery...

Read more: Slavery’s brutal reality shocked Northerners before the Civil War − and is being whitewashed today...

Florida’s new open carry ruling combines with ‘stand your ground’ to create new freedoms – and new dangers

  • Written by Caroline Light, Senior Lecturer on Studies of Women, Gender, and Sexuality, Harvard University
imageAs of September 2025, Florida allows open carry and permitless carry, in addition to its stand your ground law.Joe Raedle/Getty Images News

Twenty years ago, Florida Gov. Jeb Bush signed the first “stand your ground” law, calling it a “good, common-sense, anti-crime issue.”

The law’s creators promised it would protect...

Read more: Florida’s new open carry ruling combines with ‘stand your ground’ to create new freedoms – and new...

Why the chemtrail conspiracy theory lingers and grows – and why Tucker Carlson is talking about it

  • Written by Calum Lister Matheson, Associate Professor of Communication, University of Pittsburgh
imageContrails have a simple explanation, but not everyone wants to believe it.AP Photo/Carolyn Kaster

Everyone has looked up at the clouds and seen faces, animals, objects. Human brains are hardwired for this kind of whimsy. But some people – perhaps a surprising number – look to the sky and see government plots and wicked deeds written...

Read more: Why the chemtrail conspiracy theory lingers and grows – and why Tucker Carlson is talking about it

Blue Origin’s New Glenn rocket landed its booster on a barge at sea – an achievement that will broaden the commercial spaceflight market

  • Written by Wendy Whitman Cobb, Professor of Strategy and Security Studies, Air University
imageBlue Origin's New Glenn rocket lifted off for its second orbital flight on Nov. 13, 2025. AP Photo/John Raoux

Blue Origin’s New Glenn rocket successfully made its way to orbit for the second time on Nov. 13, 2025. Although the second launch is never as flashy as the first, this mission is still significant in several ways.

For one, it launched...

Read more: Blue Origin’s New Glenn rocket landed its booster on a barge at sea – an achievement that will...

Don’t let food poisoning crash your Thanksgiving dinner

  • Written by Lisa Cuchara, Professor of Biomedical Sciences, Quinnipiac University
imageUndercooked turkey is a leading cause of foodborne illness on Thanksgiving.AlexRaths/iStock via Getty Images Plus

Thanksgiving is a time for family, friends and feasting. However, amid the joy of gathering and indulging in delicious food, it is essential to keep food safety in mind. Foodborne illnesses can quickly put a damper on your celebrations....

Read more: Don’t let food poisoning crash your Thanksgiving dinner

Hybrid workers are putting in 90 fewer minutes of work on Fridays – and an overall shift toward custom schedules could be undercutting collaboration

  • Written by Christos Makridis, Associate Research Professor of Information Systems, Arizona State University; Institute for Humane Studies
imageIt gets lonely if you stick around an office until late afternoon on Fridays.Dimitri Otis/Stone via Getty Images

Do your office, inbox and calendar feel like a ghost town on Friday afternoons? You’re not alone.

I’m a labor economist who studies how technology and organizational change affect productivity and well-being. In a study...

Read more: Hybrid workers are putting in 90 fewer minutes of work on Fridays – and an overall shift toward...

More Articles ...

  1. Why two tiny mountain peaks became one of the internet’s most famous images
  2. Recent studies prove the ancient practice of nasal irrigation is effective at fighting the common cold
  3. SNAP benefits have been cut and disrupted – causing more kids to go without enough healthy food and harming child development
  4. Trump’s proposed cuts to work study threaten to upend a widely supported program that helps students offset college costs
  5. Can the world quit coal?
  6. Making progress is more than making policy – what Mamdani can learn from de Blasio about the politics of urban progress
  7. Supply-chain delays, rising equipment prices threaten electricity grid
  8. How a Colorado law school dug into its history to celebrate its unsung Black graduates
  9. How the Plymouth Pilgrims took over Thanksgiving – and who history left behind
  10. What’s a ‘black box’ warning? A pharmacologist explains how these labels protect patients
  11. Black and Latino homeowners in Philly face discrimination when appraisers assess their properties
  12. Space debris struck a Chinese spacecraft – how the incident could be a wake-up call for international collaboration
  13. Global companies are still committing to protect the climate – and they’re investing big money in clean tech
  14. Let’s go on an ESCAPADE – NASA’s small, low-cost orbiters will examine Mars’ atmosphere
  15. ‘Simulation theory’ brings an AI twist out of ‘The Matrix’ to ideas mystics and religious scholars have voiced for centuries
  16. Why rural Maine may back Democrat Graham Platner’s populism in the Senate campaign − but not his party
  17. NASA goes on an ESCAPADE – twin small, low-cost orbiters will examine Mars’ atmosphere
  18. The rise of the autistic detective – why neurodivergent minds are at the heart of modern mysteries
  19. The shutdown has ended – but this economist isn’t rejoicing quite yet
  20. What is Fusarium graminearum, the fungus a Chinese scientist pleaded guilty to smuggling into the US?
  21. No time to recover: Hurricane Melissa and the Caribbean’s compounding disaster trap as the storms keep coming
  22. New technologies like AI come with big claims – borrowing the scientific concept of validity can help cut through the hype
  23. What is time? Rather than something that ‘flows,’ a philosopher suggests time is a psychological projection
  24. Turn shopping stress into purposeful gift giving by cultivating ‘consumer wisdom’ during the holidays
  25. Community health centers provide care for 1 in 10 Americans, but funding cuts threaten their survival
  26. Bad Bunny is the latest product of political rage — how pop culture became the front line of American politics
  27. Sulfur-based batteries could offer electric vehicles a greener, longer-range option
  28. Want to make America healthy again? Stop fueling climate change
  29. Colorado’s rural schools serve more than 130,000 students, and their superintendents want more pay for their teachers
  30. Students of color are at greater risk for reading difficulties – even in kindergarten
  31. Under Ron DeSantis’ leadership, Florida leads the nation in executions in 2025
  32. The UN is reinventing peacekeeping – Haiti is the testing ground
  33. Star-shaped cells make a molecule that can ‘rewire’ the brains of mice with Down syndrome – understanding how could lead to new treatments
  34. Electric fields steered nanoparticles through a liquid-filled maze – this new method could improve drug delivery and purification systems
  35. Blame the shutdown on citizens who prefer politicians to vanquish their opponents rather than to work for the common good
  36. A bold new investment fund aims to channel billions into tropical forest protection – one key change can make it better
  37. Canada loses its official ‘measles-free’ status – and the US will follow soon, as vaccination rates fall
  38. What America’s divided and tumultuous politics of the late-19th century can teach us
  39. The ‘supercenter’ effect: How massive, one-stop retailers fuel overconsumption − and waste
  40. What does ‘pro-life’ mean? There’s no one answer – even for advocacy groups that oppose abortion
  41. Why do people have baby teeth and adult teeth?
  42. Turning motion into medicine: How AI, motion capture and wearables can improve your health
  43. Allen Iverson’s 2001 Sixers embodied Philly’s brash, gritty soul − and changed basketball culture forever
  44. What AI earbuds can’t replace: The value of learning another language
  45. Trump was already cutting low-income energy assistance – the shutdown is making things worse as cold weather arrives
  46. James Watson exemplified the best and worst of science – from monumental discoveries to sexism and cutthroat competition
  47. What to know as hundreds of flights are grounded across the US – an air travel expert explains
  48. National 211 hotline calls for food assistance quadrupled in a matter of days, a magnitude typically seen during disasters
  49. Seashells from centuries ago show that seagrass meadows on Florida’s Nature Coast are thriving
  50. Pennsylvania counties face tough choices on spending $2B opioid settlement funds