Redheads could become extinct, thanks to climate change


Only 1 to 2 percent of people in the world have red hair — and that number could continue to decrease due to climate change, scientists warn.
In Scotland, 13 percent of the population has red hair, which is believed to be an evolutionary response to the lack of sun. If temperatures continue to rise and the sun isn't blocked as often by clouds, the gene responsible for red hair could regress.
"We think red hair in Scotland, Ireland, and in the north of England is adaption to the climate," Dr. Alistair Moffat, managing director of ScotlandsDNA, tells Britain's The Independent. "I think the reason for light skin and red hair is that we do not get enough sun and we have to get all the vitamin D we can."
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Moffat is worried that with climate change, the number of cloudy days will decrease. "If there was more sun, then yes, there would be fewer people carrying the gene," he said.
Another scientist who asked to remain anonymous agreed that the gene is slowly dying out, but suggested it will take several hundred years for that to happen. "Red hair and blue eyes are not adapted to a warm climate," the scientist said. "It is just a theory, but the recessive gene may likely be lost. The recessive gene could be in danger."
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Catherine Garcia has worked as a senior writer at The Week since 2014. Her writing and reporting have appeared in Entertainment Weekly, The New York Times, Wirecutter, NBC News and "The Book of Jezebel," among others. She's a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.
-
The party bringing Trump-style populism to Japan
Under The Radar Far-right party is ‘Rise of Sanseito is ‘shattering’ the belief that Japan is ‘immune’ to populism’ the belief that Japan is ‘immune’ to populism
-
Southern barbecue: This year’s top three
Feature A weekend-only restaurant, a 90-year-old pitmaster, and more
-
Film reviews: Anemone and The Smashing Machine
Feature A recluse receives an unwelcome guest and a pioneering UFC fighter battles addiction
-
Renewables top coal as Trump seeks reversal
Speed Read For the first time, renewable energy sources generated more power than coal, said a new report
-
China vows first emissions cut, sidelining US
Speed Read The US, the world’s No. 2 emitter, did not attend the New York summit
-
At least 800 dead in Afghanistan earthquake
speed read A magnitude 6.0 earthquake hit a mountainous region of eastern Afghanistan
-
Massive earthquake sends tsunami across Pacific
Speed Read Hundreds of thousands of people in Japan and Hawaii were told to evacuate to higher ground
-
FEMA Urban Search and Rescue chief resigns
Speed Read Ken Pagurek has left the organization, citing 'chaos'
-
Wildfires destroy historic Grand Canyon lodge
Speed Read Dozens of structures on the North Rim have succumbed to the Dragon Bravo Fire
-
Search for survivors continues after Texas floods
Speed Read A total of 82 people are confirmed dead, including 28 children
-
EPA is reportedly killing Energy Star program
speed read The program for energy-efficient home appliances has saved consumers billions in energy costs since its 1992 launch