Tag Archive for: Drought

Changes in Snowmelt Threaten Farmers in Western U.S.

/in , , /by /Colorado State Universityby Mary Guiden

For decades, scientists have thought that changes in snowmelt due to climate change could negatively impact agriculture. Now, a new study reveals the risks to agriculture around the world from changes in snowmelt, finding that farmers in parts of the western United States who rely on snowmelt to help irrigate crops will be among the hardest hit in the world by climate change.

In a study published April 20 in Nature Climate Change, an interdisciplinary team of researchers analyzed monthly irrigation water demand with snowmelt runoff across global basins from 1985 to 2015. The goal was to determine where irrigated agriculture has depended on snowmelt runoff in the past and how that might change with a warming climate.

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Opinion: California’s Drought Without End

/in , , /by /San Francisco Chronicleby Chronicle Editorial Board

Californians tend to regard our droughts in seasonal and annual terms: The winter storms fill reservoirs with rain and mountains with snow, or they don’t, or sometimes, like this year, they do so in the spring. But a new study proposes a broader perspective in which recent years’ shifts from dry to wet to weird are just minor variations within a longer and more extraordinary period of widespread parching.

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Study: Snowpack Will Become a Less Reliable Predictor of Drought in Western U.S.

/in , , /by /Colorado Public Radioby Grace Hood

In the next 16-45 years, two-thirds of Western states may have to turn away from snowpack and find new tools to predict drought.

And by the late century, scientists estimate that area will grow to four-fifths of the western United States, according to a new paper in Nature Climate Change.

“When the temperature warms, the phase of the precipitation is likely to change from snow to rain. So less snowpack is something that’s pretty likely,” said lead author Ben Livneh, an assistant professor of civil, environmental and architectural engineering at the University of Colorado Boulder.

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Changes in Snowmelt Threaten Farmers in Western U.S.

/in , , /by /Science Dailyby Jeff Grabmeier

Farmers in parts of the western United States who rely on snowmelt to help irrigate their crops will be among the hardest hit in the world by climate change, a new study reveals.

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Northwest California Drought Grows, South Benefits from Rain

/in , /by /AP News

Record-breaking April rains eliminated all drought and abnormal dryness from Southern California and up the Central Coast through Monterey County, but drought has worsened in northwestern California, the U.S. Drought Monitor said Thursday.

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Wave of Spring Storms Wipes Out Drought in All of Southern California

/in , , /by /NBC 4 Los Angelesby Jonathan Lloyd

Spring storms that included five consecutive days of soaking rain last week knocked out drought conditions in Southern California, according to this week’s U.S. Drought Monitor report.

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Study: Warming Makes US West Megadrought Worst in Modern Age

/in , , /by /AP Newsby Seth Borenstein

A two-decade-long dry spell that has parched much of the western United States is turning into one of the deepest megadroughts in the region in more than 1,200 years, a new study found.

And about half of this historic drought can be blamed on man-made global warming, according to a study in Thursday’s journal Science.

Scientists looked at a nine-state area from Oregon and Wyoming down through California and New Mexico, plus a sliver of southwestern Montana and parts of northern Mexico. They used thousands of tree rings to compare a drought that started in 2000 and is still going — despite a wet 2019 — to four past megadroughts since the year 800.

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More Drought Predicted for Western U.S. Amid Low River Flows

/in , , /by /The Salt Lake Tribuneby Susan Montoya Bryan

The mighty Rio Grande is looking less mighty as U.S. forecasters predict spring flows will be less than half of average — or worse — and that signals potential trouble for the already stressed waterway.

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Rare April Deluge Boosts Southern California Rainfall to Normal Levels After Bone-Dry Winter

/in , , /by /The Washington Postby Mike Branom

To hear that the weather is producing average results prompts thoughts of a metronome, plain brown wrappers and the smell of vanilla. But that certainly is not how Los Angeles’s rain intake for the water year has reached its historical average.

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April Rains Have Put a Dent in the Drought, at Least in Southern California

/in , , /by /Los Angeles Timesby Paul Duginski

U.S. Drought Monitor data released Thursday show that less of California is abnormally dry, and more of the state is drought-free.

The improvement is mostly in Southern California and along the Central Coast, while data for Northern California show little change.

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