A new study suggests that a geologic “pressure release valve” in California’s San Andreas Fault might work more sporadically than previously thought, putting more stress on neighboring segments to the north and south.
An international team of researchers has reported what may be the first two isolated, salty, subglacial lakes found on Earth.
The water pockets — one roughly the area of Arizona’s Saguaro Lake, the other about four-fifths the size of the state’s Apache Lake — differ from 400 other subglacial pools in that they are 4-5 times as salty as Earth’s oceans.
Wildfires in the Lower Colorado basin can increase streamflow in the river, even during dry conditions, and even while Arizona endures a 20-plus-year drought, according to a recent study.
The 30-year study examined long-term regional fire effects at 168 sites across the contiguous U.S.
A new study suggests official flood risk plans for the San Francisco Bay Area may underestimate inundation due to sea level rise over the next century by nearly 4 to 91 percent.
Other coastal cities could face similar effects, even under best-case scenarios.
Collectors know the names: Blue Bird, Sleeping Beauty, Birdseye. Each evokes a color and pattern, from jade green to deepest robin’s egg blue, lightly freckled or shot through with pyrite spider webs of gold and black.
In this edition of KJZZ’s Untold Arizona series, I trace Arizona’s turquoise legacy through time, from new archaeological finds to the mineral’s uncertain future.