After a century of logging, California's old growth redwood forests are only a fraction of what they once were. Today, they remain a narrow coastal band that extends from Monterey Bay to the Oregon border. But redwoods are facing a new threat. As Lauren Sommer reports, scientists are trying to understand how these trees are responding to a changing climate.
If you plan to take any long plane trips this holiday season, here are a few things to keep in mind: jet lag, scientists say, often hits women harder than men. The direction you're flying matters, too. Jet lag is worse when traveling from west to east. In fact, studies suggests that jet lag can do a lot more than just wear us out
California fishermen once hauled in groundfish as if there were an unlimited supply, but now fish stocks have plummeted. Beginning in January, fishermen in California, Oregon and Washington will try something new. They'll become owners of the fishery, much like shareholders in a company. But as Lauren Sommer reports, not everyone is happy about it.
At UC Berkeley, scientists studying how to feed our growing need for energy have turned to a surprising source. As Lauren Sommer reports, researchers there are trying to produce the next generation of green power by mimicking something every weekend gardener works to clean up.
In the wake of mid-term elections, most pundits agree that a national climate change policy is farther from reach. Several science museums and aquariums are currently showing exhibits on climate change in an effort to educate the public on this complicated topic. But as Marjorie Sun reports, these institutions have to walk a fine line through a thicket of sensitive issues.
As soldiers continue to return from Iraq and Afghanistan, doctors who treat them find themselves at the forefront of scientific research. That's the case at the Veterans Affairs Hospital in Palo Alto, where scientists have made a surprising discovery. Amy Standen reports.
Air pollution may seem like an urban problem, but it's becoming an increasing concern in California's national parks. In Yosemite National Park, researchers are trying to gauge that impact using an unexpected tool: a fungus called lichen. Lauren Sommer has the story.
QUEST Radio looks at a controversial casino project in Richmond that would allow construction of a $1.2 billion resort with 4,000 slot machines. Supporters of Measure U say it will bring jobs and tax revenue to a neglected former industrial site. Opponents say a Vegas-style operation would destroy habitat along the Richmond shore. Also on the ballot: several local measures on urban growth boundaries. Amy Standen and Lauren Sommer report.
Can brain performance be improved? The $300 million-a-year "brain-fitness" industry is betting that the answer to that question is yes. Some companies say that an 80-year old brain can perform just as well as a 25-year old brain after some specialized video game training. What about crossword puzzles and regular old exercise? QUEST takes a look at the growing brain fitness industry and the science behind it.
The general idea is that by doing a series of basic and repetitive tasks, which get harder over time, you’re actually changing your brain structure. Over time, the manufacturers claim, you can train an old brain to behave like a new one. But many scientists who study aging are skeptical.