Posted on February 27, 2015 by Bob Berwyn
Will the world get it together on water?
Upfront spending would avoid the huge costs of escalating conflicts
FRISCO — Big investments in water infrastructure are needed around the world to avert future conflicts over the world’s most essential resource. Looming shortages of water could trigger conflicts and mass migrations, contributing to social and political instability, the report warns.
“The consequence of unmet water goals will be widespread insecurity creating more international tension and conflict,” said lead author Bob Sandford. “The positive message is that if we can keep moving now on water-related sustainable development goals we can still have the future we want,” he said. Continue reading
Filed under: Environment, rivers, water, water quality | Tagged: drought, Environment, sustainable development, War, water | 1 Comment »
Posted on February 13, 2015 by Bob Berwyn
Shrunken reservoirs may become the norm across the West during the second half of the century. bberwyn photo.
All models point to significant drying and warming
FRISCO — By the second half of this century, the relentless increase in global greenhouse gases could push the U.S. Southwest and Great Plains toward persistent drought conditions worse than anything seen in ancient or modern times.
Drought conditions will likely be more severe than during several decades-long megadroughts that are well-documented by paleoclimate records, according to climate scientists with the Lamont-Doherty Earth Observatory at Columbia University’s Earth Institute.
Filed under: climate and weather, Drought, Environment, extreme weather, global warming | Tagged: climate change, drought, global warming, megadrought, Southwest | 1 Comment »
Posted on February 8, 2015 by Bob Berwyn
A recent weather satellite image of Australia, via NASA.
‘The Millennium Drought was far from an exceptional event for eastern Australia during the past thousand years …’
FRISCO — Even without the added factor of global warming, eastern Australia is susceptible to climate extremes, including long-lasting droughts that could put a huge strain on water storage and delivery systems.
Researchers say a 1,000-year ice core record from Antarctica shows the recent “Millennium Drought” actually wasn’t all that unusual in the context of Australia’s long-term climate history. Continue reading
Filed under: climate and weather, Environment, extreme weather | Tagged: Antarctica, Australia, climate change, drought, global warming, Ice core | Leave a comment »
Posted on December 26, 2014 by Bob Berwyn
Some birds won’t nest at all during drought years.
Some Sonoran Desert species skip breeding entirely during extreme drought
FRISCO — Drought-driven delayed nesting by some southwestern bird species may lead to crashing populations, scientists said in a new study that looked closely at Sonoran Desert bird species, such as Black-tailed Gnatcatchers and Verdins.
The research suggests drought conditions are delaying nesting by two weeks or more for some species. Despite recent rainfall, drought conditions persist in much of the Southwest, making life tough even for species adapted to a dry environment.
Delayed nesting makes the birds more vulnerable to nest predators and parasites, according to the scientists with Point Blue Conservation Science and the U.S. Geological Survey finds that increased drought frequency in southwestern North America results in increased instances of delayed nesting. Continue reading
Filed under: biodiversity, climate and weather, climate change, Environment, global warming | Tagged: Birds, climate change, drought, extreme weather, Southwest | Leave a comment »
Posted on December 13, 2014 by Bob Berwyn
Attribution studies still somewhat sketchy
Does global warming cause extreme weather?
FRISCO — A Stanford University climate researcher says that better modeling, advanced statistical analyses and a more robust set of observational climate data will help scientists under stand whether global warming is leading to more extreme weather events like floods, droughts and heat waves.
Such events appear to happening more frequently around the world, but because high-quality weather records go back only about 100 years, most scientists have been reluctant to say if global warming affected particular extreme events. Continue reading
Filed under: climate and weather, extreme weather, global warming | Tagged: climate change, drought, extreme weather, flooding, global warming, Storm surge | 1 Comment »
Posted on October 19, 2014 by Bob Berwyn
Storage still near all-time lows
A 2014 water year map shows the continuing drought conditions in California, as well as dry patches from Texas, extending north into Oklahoma.
FRISCO — Near-average inflow to Lake Powell the past 12 months helped maintain storage at a similar level to last year in the key Colorado River reservoir. According to the Bureau of Reclamation. Continue reading
Filed under: Colorado, Environment, rivers, water | Tagged: 2014 water year, Colorado River, drought, Lake Powell | 1 Comment »
Posted on October 15, 2014 by Bob Berwyn
A dust storm engulfs Stratford, Texas in April of 1935. The drought of 1934 was likely made worse by dust storms triggered by the poor agricultural practices of the time.
Credit: NOAA/George E. Marsh Album.
Severe dust storms spawned even more widespread drought, research shows
FRISCO — With all the recent talk of looming megadroughts, the 1934 peak of the Dust Bowl era still remains the most severe and widespread drought in North America during the past 1,000 years, climate scientists say.
Based on tree-ring studies and other physical records, the only other comparable event was way back in the 1500s.
The extent of the 1934 drought was approximately seven times larger than droughts of comparable intensity that struck North America between 1000 A.D. and 2005, and was caused in part by an atmospheric phenomenon that may have also led to the current drought in California, according to a new study. Continue reading
Filed under: climate and weather, Drought, extreme weather, global warming | Tagged: California drought, climate, climate change, drought, Dust Bowl, extreme weather, weather | 1 Comment »