Lightnews — Scholar-powered news

Coyote Gulch @coyotegulch.bsky.social · 4h

The September 2025 briefing is hot off the presses from Western Water Assessment Intermountain West Dashboard coyotegulch.blog/2025/10/14/t...

Reposted by Coyote Gulch

DeniseG @denisegutzmer.bsky.social · 8h

The US Seasonal Drought Outlook through January 2026 shows that drought may persist/develop (brown/yellow) in the Southwest, South, Southeast and Northeast. Drought may remain/be removed (tan/green) in the Pacific Northwest, Midwest and Hawaii.

#drought 🧪

www.cpc.ncep.noaa.gov/products/exp...

The U.S. Seasonal Drought Outlook shows areas where drought may persist, remain but improve and where removal or development is likely.

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The Keeling Curve @keelingcurve.bsky.social · 5h

424.58 parts per million (ppm) CO2 in air 15-Oct-2025
keelingcurve.ucsd.edu

The Keeling Curve

The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

keelingcurve.ucsd.edu

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National Weather Service @nws.noaa.gov · 10h

A system developing across the Plains may cause locally severe weather in W Kansas and SW Nebraska today, before pushing into Oklahoma, Kansas, & Missouri Friday. Saturday, there will be a threat for tornadoes, damaging wind gusts and hail in parts of the Ark-La-Tex, Ozarks & mid Mississippi Valley.

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Coyote Gulch @coyotegulch.bsky.social · 10h

#Drought news October 16, 2025: Heavy to excessive precipitation pounded the higher elevations of #Colorado. Most areas from west-central through south-central portions of the state received at least 3 inches of precipitation coyotegulch.blog/2025/10/16/d...

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Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social · 13h

End fossil fuels now or destroy the world.

That's the choice.

Report here:

wmo.int/news/media-c...

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Carbon dioxide levels increase by record amount to new highs in 2024

wmo.int

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Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social · 13h

This is why "all of the above" energy is not a climate solution.

Record amounts of clean energy were built in 2024, but since we're still building out fossil fuels—indeed, since we're still just *using* fossil fuels—the amount of CO2 in the atmosphere is still going up, cooking us.

1/n

WORLD
METEOROLOGICAL
ORGANIZATION

Carbon dioxide levels increase by record amount to new highs in 2024

• PRESS RELEASE
15 October 2025
Carbon dioxide (COz) levels in the atmosphere soared by a record amount to new highs in 2024, committing the planet to more long-term temperature increase, according to a new report from the World Meteorological Organization (WMO).

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David Ho @davidho.bsky.social · 16h

“The forecast for the powerful and deadly storm that battered small communities in western Alaska over the weekend was likely made worse by a lack of weather data triggered by the Trump administration’s cuts.”

Lack of weather data due to Trump’s budget cuts impacted forecast for deadly Alaska storm | CNN

The forecast for the powerful and deadly storm that battered small communities in western Alaska over the weekend was likely made worse by a lack of weather data triggered by the Trump administration’...

edition.cnn.com

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Coyote Gulch @coyotegulch.bsky.social · 12h

Romancing the River: In Pursuit of the Real 1922 Compact -- George Sibley (SibleysRivers.com) #ColoradoRiver #COriver #arididfication coyotegulch.blog/2025/10/16/r...

Coyote Gulch @coyotegulch.bsky.social · 12h

Release: #Colorado Governor Jared Polis, Attorney General Phil Weiser Urge U.S. Supreme Court to Reject #Nebraska Case on #SouthPlatteRiver coyotegulch.blog/2025/10/16/r...

Release: #Colorado Governor Jared Polis, Attorney General Phil Weiser Urge U.S. Supreme Court to Reject #Nebraska Case on #SouthPlatteRiver

Perkins canal drawing showing the Colorado portion, courtesy Nebraska Department of Natural Resources. Here’s the release from Governor Polis’ office (Lawrence Pacheco and Shelby Wieman…

coyotegulch.blog

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Coyote Gulch @coyotegulch.bsky.social · 12h

Probabilistic Physics-Guided Deep Neural Networks With Recurrence and Attention Mechanisms for Interpretable Daily Streamflow Simulation -- Sadegh Sadeghi Tabas, Vidya Samadi, Catherine Wilson, Biswa Bhattacharya (AGU Water Resources Research) coyotegulch.blog/2025/10/16/p...

Probabilistic Physics-Guided Deep Neural Networks With Recurrence and Attention Mechanisms for Interpretable Daily Streamflow Simulation — Sadegh Sadeghi Tabas, Vidya Samadi, Catherine Wilson, Biswa B...

Overview of the 18 CAMELS HUC2 basins (or zone) across CONUS. Click the link to access the article on the AGU website (Sadegh Sadeghi Tabas, Vidya Samadi, Catherine Wilson, Biswa Bhattacharya). Her…

coyotegulch.blog

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Peter Brannen @peterbrannen.bsky.social · 1d

The fact that not only is the amount of CO2 in the atmosphere is still increasing, but the *rate of CO2 increasing* in the atmosphere is still increasing is true nightmare stuff.

Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 1d

“[Last year] CO2 in the global surface atmosphere increased by 3.5 ppm, the largest one-year increase since modern measurements began... This increase was driven by continued fossil CO2 emissions, enhanced fire emissions and reduced terrestrial/ocean sinks… which could signal a climate feedback.”

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Circle of Blue @circleofblue.bsky.social · 13h

Two-Decade Hydropower Plunge at Big Colorado River Dams

Lakes Mead and Powell, the largest reservoirs on the Colorado River, do not just store water. Their dams, Hoover and Glen Canyon, also generate electricity. This hydropower drives irrigation pumps and fuels industries. It keeps the lights on…

Two-Decade Hydropower Plunge at Big Colorado River Dams

Lakes Mead and Powell, the largest reservoirs on the Colorado River, do not just store water. Their dams, Hoover and Glen Canyon, also generate electricity. This hydropower drives irrigation pumps and fuels industries. It keeps the lights on for customers on tribal lands, in the basin’s largest cities, and in sleepy desert towns. But less of it is being generated these days.

www.circleofblue.org

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Mongabay @mongabay.com · 1d

Five of Earth’s vital systems are close to a point of irreversible change, warns a new report released by a global network of scientists ahead of the upcoming U.N. climate change conference in Brazil.

Five crucial Earth systems near a tipping point: Report

Five of Earth’s vital systems are close to a point of irreversible change, warns a new report released by a global network of scientists ahead of the upcoming U.N. climate change conference in…

news.mongabay.com

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ProPublica @propublica.org · 23h

Nearly 6 billion people live in the 101 countries that a recent study has identified as confronting a net decline in water supply — signaling enormous challenges for food production and a heightening risk of conflict and instability.

(Published July)

“Staggering” Water Loss Driven by Groundwater Mining Poses Global Threat

A new study finds that freshwater resources are rapidly disappearing, creating arid “mega” regions and causing sea levels to rise.

www.propublica.org

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The Keeling Curve @keelingcurve.bsky.social · 1d

424.16 parts per million (ppm) CO2 in air 14-Oct-2025
keelingcurve.ucsd.edu

The Keeling Curve

The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.

keelingcurve.ucsd.edu

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National Weather Service @nws.noaa.gov · 1d

An atmospheric river event favors increased chances of stormy weather over the Western U.S. during late October.

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Western Water Assessment @wwanews.bsky.social · 1d

#Drought conditions improved during September in Colorado and Wyoming, while all of Utah continues to remain in at least moderate (D1) drought. By Sept 30, regional drought coverage was 61%, a 6% improvement since the end of August.

Learn more: wwa.colorado.edu/resources/in... @cires.colorado.edu

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Circle of Blue @circleofblue.bsky.social · 1d

As the Colorado River’s flow declines, hydropower from Hoover and Glen Canyon Dams is faltering — down by half since 2000. Across the Southwest, utilities are adapting by turning to solar, ensuring the lights stay on even as the water runs low.
#WaterNews #ColoradoRiver
buff.ly/JXPS91h

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National Weather Service @nws.noaa.gov · 1d

Looking ahead, a storm system moving out of the Central U.S. is expected to bring a severe weather and flooding threat to the Mid-Mississippi Valley on Saturday. Follow your local NWS office for updates and details in this region.

weather.gov

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Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social · 1d

The thing about solar geoengineering is that once you start you cannot stop *ever* unless somehow you have already removed all the multi-billions of tons of carbon emitted since the day you started.

If you stop at the higher CO2 concentration you get virtually instantaneous catastrophic heating.

Dr. Aaron Thierry @thierryaaron.bsky.social · 1d

"If geoengineering works well initially & you see this temperature drop, the tempempation to keep going & extracting fossil fuels will be greater than ever, because it will seem that you have a technologically that can cut off the link between temperature rises & fossil fuel combustion."

Overshoot & Climate Breakdown - Wim Carton & Andreas Malm | #39

YouTube video by Jesse Damiani

youtu.be

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Coyote Gulch @coyotegulch.bsky.social · 1d

Rivers begin to recede after surge from heavy rains: Now it’s time to measure and account for the extra water in management of the #RioGrande Compact -- AlamosaCitizen.com coyotegulch.blog/2025/10/15/r...

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Coyote Gulch @coyotegulch.bsky.social · 1d

Federal Water Tap, October 13, 2025: Underwater Dam again Built across #MississippiRiver in #Louisiana -- Brett Walton (circleofblue.org) coyotegulch.blog/2025/10/15/f...

Coyote Gulch @coyotegulch.bsky.social · 1d

Release: #ColoradoRiver Water Supplies Cut in Upper Basin -- Matt Moseley and Kendra Westerkamp (Upper Colorado River Commission) #COriver #aridification coyotegulch.blog/2025/10/15/r...

Release: #ColoradoRiver Water Supplies Cut in Upper Basin — Matt Moseley and Kendra Westerkamp (Upper Colorado River Commission) #COriver #aridification

Photo credit: Upper Colorado River Commission Click the link to read the release on the Upper Colorado River Commission website: October 8, 2025 As the Upper Division States negotiate ways to equit…

coyotegulch.blog

Coyote Gulch @coyotegulch.bsky.social · 1d

Colorado Water Trust Responds to Devastating #Drought Conditions with Unprecedented Restoration Efforts -- Kate Ryan and Blake Mamich coyotegulch.blog/2025/10/15/c...

Colorado Water Trust Responds to Devastating #Drought Conditions with Unprecedented Restoration Efforts — Kate Ryan and Blake Mamich

Colorado Drought Monitor map October 7, 2025. Here’s the release from the Colorado Water Trust (Kate Ryan and Blake Mamich): October 7, 2025 Colorado’s rivers are running on empty as drought …

coyotegulch.blog