Lmst

Panama Canal may face frequent extreme water lows in coming decades. A new study found historic droughts could become common for Gatún Lake, the main source of water for the Panama Canal locks. #commerce #PanamaCanal #water #drougth #aridification #climatechange https://news.agu.org/press-release/panama-canal-may-face-frequent-extreme-water-lows-in-coming-decades/

Colorado River Basin Has Lost As Much Water As A Full Lake Mead Since 2003, Study Says
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https://www.kjzz.org/science/2025-05-30/colorado-river-basin-has-lost-as-much-water-as-a-full-lake-mead-since-2003-study-says <-- shared technical article
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https://doi.org/10.1029/2025GL115593 <-- shared paper
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#GIS #spatial #mapping #CRB #ColoradoRiver #ColoradoRiverbasin #Reservoir #lakeMead #lakePOwell #watersupply #waterstorage #drought #climatechange #groundwater #mining #depletion #remotesensing #NASA #GRACE #GRACEFO #satellite #water #hydrology #population #usecase #farming #irrigation #agriculture #watersecurity #foodsecurity #usage #model #modeling #landsurface #sustainability #sustainable #extraction #aridification

Implications pour la disponibilité de l'eau douce
À l'heure actuelle, le #pompage excessif des eaux souterraines est le principal facteur contribuant aux taux de déclin en #stockage de l'eau terrestre dans les régions en voie d'assèchement, amplifiant de manière significative les impacts de l'augmentation de la #température, de l'#aridification et des épisodes de #sécheresse extrême. La #surexploitation continue des eaux souterraines qui, dans certaines régions comme la #Californie, se produit à un rythme croissant, plutôt qu'à un rythme durable ou décroissant, compromet la sécurité régionale et mondiale de l'eau et de l'alimentation d'une manière qui n'est pas pleinement reconnue dans le monde entier.
L'épuisement des eaux souterraines est directement affecté par les décisions de gestion de l'eau et peut également être stoppé par celles-ci.
Dans de nombreux endroits où les eaux souterraines s'épuisent, elles ne se reconstitueront pas à l'échelle humaine. La disparition des eaux souterraines des #aquifères de la planète constitue une nouvelle #menace grave pour l'humanité et présente des #risques en cascade qui sont rarement pris en compte dans les #politiquesenvironnementales, la #gestion et la #gouvernance.
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Southwestern #drought likely to continue through 2100, research finds
Southwestern #US is experiencing a #megadrought resulting in the #aridification of the landscape, a decades-long drying of the region brought on by climate change and the overconsumption of the region’s #water.
Using an ensemble of historical and future #climate models forecasting climate and precipitation patterns until 2100, they found that the PDO-like negative phase continues through this century.
https://arstechnica.com/science/2025/07/southwestern-drought-likely-to-continue-through-2100-research-finds/

Declining Freshwater Availability in the Colorado River Basin Threatens Sustainability of Its Critical Groundwater Supplies
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https://doi.org/10.1029/2025GL115593 <-- shared paper
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https://thehill.com/policy/equilibrium-sustainability/5320154-colorado-river-basin-study-groundwater-crisis/ <-- shared media article
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#GIS #spatial #mapping #ColoradoRiverBasin #water #hydrology #waterresources #aridification #anthropogenic #climatechange #humanimpacts #groundwater #depletion #pumping #wateruse #agriculture #irrigation #management #planning #monitoring #remotesensing #earthonservation #satellite #NASA #GRACE #GRACEFO #landsurface #model #modeling #sustainability #surfacewater #waterrights #droughts #USA #Mexico #watershortages #waterstorage #spatialanalysis #spatiotemporal #strategy

India is a global warming ‘hole,’ and scientists aren’t sure why. Despite its extreme heat waves, the country’s decadeslong warming trend amounts to half the global average. #India #climatechange #water #heat #aridification https://www.science.org/content/article/india-global-warming-hole-scientists-arent-sure

Aral Sea drainage to satiate agricultural thirst leading to land uplift. #aridification #water #agriculture https://www.nature.com/articles/s41561-025-01664-w

The Earth is getting drier and may have hit a tipping point for how much water is stored in soil because of climate change. #water #drought #aridification #climatechange https://www.abc.net.au/news/science/2025-03-28/earths-big-dry-out-freshwater-loss-irreversible-climate-change/105100272

Will the #RapidUplift and #Aridification of #QinghaiTibetPlateau affect the distribution and community structure of #Bryophytes? Benfeng Yin et al. used #SyntrichiaCaninervis Mitt as the research object and investigated its #GeneticVariation, #Differentiation and #PopulationDynamicHistory in China.
https://doi.org/10.1093/jpe/rtac057

Potential distributions as probability of occurrence for Syntrichia caninervis in China based on MIROC modelling.

The #cactus family’s surprising evolutionary journey https://www.newscientist.com/article/2448468-the-cactus-familys-surprising-evolutionary-journey/

Identifying the multiple drivers of cactus diversification https://www.nature.com/articles/s41467-024-51666-2

"ancient #aridification – an increase in dryness seen in several American regions – cannot fully explain cactus #evolution. Some big periods of diversification seem to have happened more recently than the transition to a drier #climate, for example, and new species seem to have emerged more quickly in places that aren’t as dry."