15,000-year-old viruses discovered in Tibetan glacier ice

Scientists who study glacier ice have found viruses nearly 15,000 years old in two ice samples taken from the Tibetan Plateau in China. Most of those viruses, which survived because they had remained frozen, are unlike any viruses that have been cataloged to date. The findings, published today in the journal Microbiome, could help scientists understand how […]

Mountaintop glacier ice disappearing in tropics around the world

Mountaintop glacier ice in the tropics of all four hemispheres covers significantly less area — in one case as much as 93% less — than it did just 50 years ago, a new study has found. The study, published online recently in the journal Global and Planetary Change, found that a glacier near Puncak Jaya, in […]

Telling sunbathers what they don’t want to hear: Tanning is bad

Most young women already know that tanning is dangerous and sunbathe anyway, so a campaign informing them of the risk should take into account their potential resistance to the message, according to a new study. Word choice and targeting a specific audience are part of messaging strategy, but there is also psychology at play, researchers […]

Changes in ocean chemistry show how sea level affects global carbon cycle

A new analysis of strontium isotopes in marine sediments has enabled scientists to reconstruct fluctuations in ocean chemistry related to changing climate conditions over the past 35 million years. The results, published March 26, 2021, in Science, provide new insights into the inner workings of the global carbon cycle and, in particular, the processes by which […]