Science journal

A study finds that wildfires have reversed U.S. progress on reducing smog since 2015, with national ground-level ozone increasing by 4% as fires grow larger. Researchers attribute this trend partly to climate change and limited air pollution monitoring, projecting smog levels could return to 2003 levels in 20 years if wildfire smoke continues to rise.

A new study challenges the long-held belief that Cretaceous oceans were dominated solely by vertebrate predators like mosasaurs and sharks. Researchers discovered fossilized remains of giant, finned octopuses up to 19 meters long, suggesting they were apex predators with hardened beaks and high intelligence, altering the understanding of marine ecosystems 80 million years ago.

Carbon nanotubes, once seen as a revolutionary material, faced challenges in purity and conductivity. Recent research in Science shows a chemical treatment improves their current-carrying capacity closer to copper's performance, suggesting potential future applications.