As the ozone layer recovers, it’s also intensifying global warming. Researchers predict that by 2050, ozone will rank just behind carbon dioxide as a driver of heating, offsetting many of the benefits from banning CFCs.
140,000-year-old skeleton shows earliest interbreeding between humans and Neanderthals
Scientists have uncovered the world s earliest fossil showing both Neanderthal and Homo sapiens features: a five-year-old child from Israel s Skhul Cave dating back 140,000 years. This discovery pushes back the timeline of human interbreeding, proving that Neanderthals and modern humans were already mixing long before Europe s later...
Ancient fossil discovery in Ethiopia rewrites human origins
In the deserts of Ethiopia, scientists uncovered fossils showing that early members of our genus Homo lived side by side with a newly identified species of Australopithecus nearly three million years ago. These finds challenge the old idea of a straight evolutionary ladder, revealing instead a tangled web of ancient...
Scientists finally crack the secret to perfect chocolate flavor
Scientists have decoded the microbial and environmental factors behind cacao fermentation, the critical process that defines chocolate’s taste. By recreating the fermentation with controlled microbial communities, they’ve paved the way for more consistent, high-quality chocolate.
This is where tree planting has the biggest climate impact
Planting more trees can help cool the planet and reduce fire risk—but where they are planted matters. According to UC Riverside researchers, tropical regions provide the most powerful climate benefits because trees there grow year-round, absorb more carbon dioxide, and cool the air through processes like evapotranspiration, or “tree sweating.”
The surprising reason timber plantations explode into megafires
Industrial forests, packed with evenly spaced trees, face nearly 50% higher odds of megafires than public lands. A lidar-powered study of California’s Sierra Nevada reveals how dense plantations feed fire severity, but also shows that proactive thinning could prevent forests from collapsing into shrubland ecosystems.
Protected seas help kelp forests bounce back from heatwaves
Kelp forests bounce back faster from marine heatwaves when shielded inside Marine Protected Areas. UCLA researchers found that fishing restrictions and predator protection strengthen ecosystem resilience, though results vary by location.
Scientists unlock the gene that lets bearded dragons switch sex
Two independent research teams have unveiled near-complete reference genomes of the central bearded dragon, a reptile with the rare ability to change sex depending on both chromosomes and nest temperature. Using next-generation sequencing technologies from China and Australia, the projects uncovered the long-sought genetic basis of sex determination in this...
Tiny microbes may secretly rewire the brain before birth
MSU researchers discovered that microbes begin shaping the brain while still in the womb, influencing neurons in a region critical for stress and social behavior. Their findings suggest modern birth practices that alter the microbiome may have hidden impacts on brain development.
Scientists reveal how just two human decisions rewired the Great Salt Lake forever
Scientists found that Great Salt Lake’s chemistry and water balance were stable for thousands of years, until human settlement. Irrigation and farming in the 1800s and a railroad causeway in 1959 created dramatic, lasting changes. The lake now behaves in ways unseen for at least 2,000 years.