Posts Tagged ‘erosion’
New ‘coat’ keeps limestone from eroding
CARDIFF U. (UK) — A new treatment for historic limestone buildings protects them from erosion by acid rain and atmospheric pollutants while allowing the stone to “breathe.” Continue…
Tuesday, December 4, 2012 12:15 - 0 Comments
Earth & Environment - Nov 13, 2012 11:20 - 2 Comments
Nature’s sculptor: How water molds land
NYU (US) — Erosion caused by flowing water not only smoothes out objects, but can also form distinct shapes with sharp points and edges. (more…)
Earth & Environment - Nov 6, 2012 15:18 - 0 Comments
Erosion’s hand in releasing buried carbon
UC DAVIS (US) — Erosion can bury carbon in the soil, acting as a carbon sink, but part of that sink is only temporary, a new study suggests. (more…)
Earth & Environment - Jun 27, 2012 14:26 - 0 Comments
Oil spill intensified erosion in Gulf marshes
U. FLORIDA (US) — The Deepwater Horizon oil spill temporarily worsened erosion and other existing manmade problems in Louisiana’s salt marshes, but researchers say there may be cause for optimism. (more…)
Earth & Environment - Nov 16, 2011 13:03 - 5 Comments
Ancient landslide blocked California river
U. OREGON / CALTECH (US) — New evidence suggests a catastrophic landslide 22,500 years ago dammed the upper reaches of northern California’s Eel River and formed a now gone 30-mile-long lake. (more…)
Earth & Environment - May 13, 2011 15:43 - 0 Comments
Reforesting program is a double win
STANFORD (US) — Planting trees instead of crops on sloping lands in China is preventing erosion from rain and has the added bonus of helping some farmers make economic gains. (more…)
Earth & Environment - Dec 10, 2010 16:42 - 0 Comments
State’s iron legacy still toxic to soil
PENN STATE (US) — Some areas of soil in the state of Pennsylvania contain 14,000 parts per million of manganese—more than 17 times as much as in the surrounding bedrock. (more…)
Earth & Environment - Nov 17, 2010 14:40 - 0 Comments
Is time running out to save Lake Tahoe?
UC DAVIS (US) — By the year 2100, average snowpack in the Lake Tahoe basin is expected to decline by as much as 60 percent and prolonged droughts will become more common. (more…)
Earth & Environment - Oct 20, 2010 11:19 - 0 Comments
Logging packs bigger punch than fire
U. OREGON (US) — Soil stability and unprecedented erosion remains a problem half a century after clear-cut logging and related road building took place in the 1950s and ’60s. (more…)
Earth & Environment - Sep 17, 2010 11:30 - 0 Comments
Glaciers act as mountains’ armor
YALE (US)— Glaciers in the southern reaches of the Patagonian Andes have acted as a kind of protective shield throughout the mountain range’s 25-million-year history. (more…)
Earth & Environment - Jun 21, 2010 23:23 - 0 Comments
Flood forms canyon in 3 days
CALTECH (US)—In the summer of 2002, a week of heavy rains in Central Texas caused Canyon Lake to flood over its spillway and down the Guadalupe River Valley. The waters excavated a 2.2-kilometer-long, 7-meter-deep canyon in the bedrock in just three days, new analysis shows. (more…)
Science & Technology - May 27, 2010 14:09 - 0 Comments
Mysteries of Martian ice cap solved
TEXAS-AUSTIN (US)—Scientists have reconstructed the formation of two curious features in the northern ice cap of Mars—a chasm larger than the Grand Canyon and a series of spiral troughs—solving a pair of mysteries dating back four decades—while also finding new evidence of climate change on Mars. (more…)
Earth & Environment - Dec 21, 2009 15:35 - 0 Comments
Greener way to build ski runs
UC DAVIS (US)—Building a new ski run by bulldozing a mountainside rather than only cutting its shrubs and trees is far more damaging ecologically, yet might offer only a week’s earlier start to the downhill season. (more…)
Earth & Environment - Dec 15, 2009 16:39 - 0 Comments
‘Triple whammy’ takes toll on Arctic erosion
U. COLORADO (US)—The combined effect of declining sea ice, warming seawater, and increased wave activity is causing the northern coastline of Alaska to erode by up to one-third the length of a football field each year. (more…)
Earth & Environment - Dec 15, 2009 10:48 - 0 Comments
Atlantic Coast sea level rises at faster pace
U. PENN (US)—Sea level along the Atlantic Coast is rising faster now than at any time in the past 4,000 years. (more…)
Earth & Environment - Oct 30, 2009 10:38 - 0 Comments
First detailed record of tsunami erosion
U. WASHINGTON (US)—A group of scientists working in the Kuril Islands off the east coast of Russia has documented the scope of tsunami-caused erosion and found that a wave can carry away far more sand and dirt than it deposits. (more…)
Earth & Environment - Oct 5, 2009 19:08 - 0 Comments
Alfalfa sprouts recreate meandering stream
UC BERKELEY (US)—Researchers report the first experimental creation of meanders in a flume—a scaled-down model of a natural channel using alfalfa sprouts to represent vegetated stream banks. The experiments reveal some of the necessary conditions to form meanders on Earth and throughout the solar system. (more…)
