Ongoing volcanic eruptions in Hawaii and Guatemala are leading to speculation that volcanism in general may be on an upswing. The anecdotal evidence, at least, is tantalizing: There have been about 25 major eruptions around the world from 2000 to 2018, compared to 65 for the entire 20 th Century.
Posted on June 14, 2018 - 4:26pm
It may not be a true meteorological “March Miracle,” but it’s close enough for government work, as government workers are wont to say. The series of storms that have battered California in recent weeks have pumped up the snowpack in the Sierra and swelled streams at lower elevations. And it looks like we could be in for a last wet gasp from the Pacific, with a fairly robust front poised to dump rain and snow mid-week. For a state that still teeters on drought despite last year’s extraordinarily wet rainy season, that’s good news.
Posted on April 2, 2018 - 12:52pm
At Eagle Elementary School, located in a suburban district in New York’s Capital Region, 12 fourth and fifth-graders are inventing. Two students are trying to work the bugs out of a miniature electronic sliding door. Another team is setting up the tiny equivalent of a washing machine drum. Still others are building a robotic fan.
Posted on February 23, 2018 - 1:12pm
Feel it yet? That dire sense of déjà vu? It probably depends on your livelihood or interests. If you’re a Bay Area boulevardier or the type once described in singles ads as a lover of long walks on the beach, you’re no doubt delighted by the unceasing blue skies and unseasonably pleasant temperatures. But it’s another matter if you’re a farmer, salmon fisherman, water agency manager, skier or whitewater kayaker. Your income—or at least, your sense of well-being— is directly determined by what falls from the sky.
Posted on January 3, 2018 - 5:31pm
Disastrous wildfires are popularly associated with drought. But the North Bay fires followed one of the wettest winters in decades.
The nightly news tends to make things even more confusing. During drought, newscasters sound the alarm about dead trees and the general flammability of parched forests. After wet winters, dire warnings are issued about the abundant growth of grass and brush that will become tinder during the hot, dry days of California’s summer and fall. So are wet winters worse for fires? Or are dry winters worse?
Posted on November 20, 2017 - 4:29pm
The Rim Fire, sweeping through the Sierra Nevada in 2013, rendered 257,000 acres of vegetation into ash, razed whole stands of trees, and ranked as the third biggest wildfire in California history. But the conflagration also sparked a discovery, if you happened to be a mycologist running a field experiment in the area. UC Berkeley Ph.D.
Ronald Reagan was (in)famously unmoved by ancient forests, claiming that “when you’ve seen one redwood, you’ve seen them all.” But most of us still feel a frisson when we stroll among old-growth trees, particularly when they’re the biggest dang trees on the planet: Sequoiadendron giganteum, otherwise known as giant sequoias. (That’s biggest by volume, by the way. Coast redwoods, Sequoia sempervirens, may be taller but typically are more slender.)
Posted on March 23, 2015 - 2:42pm
As the U.S. Forest Service finalizes plans to restore forests torched in last year’s Yosemite-area Rim Fire—the third largest in state history—conservationists are worried that the scheme skimps on environmental protection. Also concerned is one of the state’s top forestry experts, a UC Berkeley professor who warns that replanting trees the traditional way will simply sow the seeds for the next conflagration.
Posted on September 2, 2014 - 12:23pm
