Critters living more than six miles below the ocean surface contain high levels of harmful compounds like PCBs and flame retardants. Listen the podcast at Scientific American’s 60-Second Science.
Arctic heat waves melt sea ice, which promotes more warming and even more ice loss. In other words, it’s a snowball effect—or in this case, an anti-snowball effect. Listen to the podcast at Scientific American’s 60-Second Science.
When the sun, moon and Earth are aligned, high tidal stress may increase the chances that an earthquake will grow bigger than it otherwise might have been. Listen to the 60 Second-Science podcast at Scientific American.
Great frigate birds may stay aloft for up to two months, eating and sleeping on the wing. Listen to the podcast at Scientific American’s 60-Second Science.
South Africa has an ambitious plan to address its HIV/AIDS epidemic. I interviewed Jon Cohen about his article in Science magazine chronicling the country’s efforts. Listen to the podcast at Science.
Lavas that originate deep in the mantle offer insight into the early days of planet Earth. Listen to the full podcast at Science.
Rockfalls without an obvious cause (like an earthquake or expanding ice) may be due to hot daily air temperatures expanding small cracks in cliff faces. The floor of Yosemite Valley is littered with piles of rocks that crumbled off the park’s iconic cliffs. These rockfalls happen all the time, because Yosemite’s granite walls are … More Heat ID’d as Subtle Cause of Rockfalls
Creatures that live on the seafloor play vital roles in marine ecosystems, but human-made noise can alter their behaviors. Stick your head underwater and you’ll quickly discover that the ocean has a soundtrack. Waves crash, whales sing, and occasionally, an underwater earthquake rumbles from the depths. Over the last century, however, human activities have added … More Our noise bothers overlooked seafloor critters
In 2002, residents of the eastern Congo suffered a one-two punch–a volcanic eruption followed months later by a destructive earthquake. Now researchers say the events might have been related, exposing a new source of seismic hazards in rift zones like East Africa. Learn more in my podcast for Scientific American.
Geologists have long attributed the disappearance of the dinosaurs to a catastrophic asteroid impact. But some scientists wonder if other factors–like massive volcanic eruptions in present-day India–didn’t have a hand in it too. That idea is bolstered by new research that finds a spike in mercury around the time of the extinction. Learn more in … More Did volcanoes do in the dinos?