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Arizona's Declining Groundwater

https://science.nasa.gov/earth/earth-observatory/arizonas-declining-groundwater-154567/
3•littlexsparkee•45m ago

Comments

westurner•16m ago
Would semi-circular bunds help fight desertification in Arizona and along the Colorado River and in the Southwestern US, as they do on the Sahel?

From https://news.ycombinator.com/item?id=39927538 :

> Agricultural Bunds (and buried unglazed water vessels) would probably work in NM, too; but which agricultural resources can process bunds instead of rows?

From https://news.ycombinator.com/item?id=40361034 :

> Water bunds look like they work to prevent water from flashing off, but probably initially disturb the mycorrhizae in the topsoil:

Semicircular bund: https://en.wikipedia.org/wiki/Semicircular_bund

> "Inoculating soil with mycorrhizal fungi can increase plant yield: study" (2024) https://news.ycombinator.com/item?id=38526579#38527264

From https://news.ycombinator.com/item?id=43190710 :

> Half Moon Bunds look like they are working to regreen the Sahel. Bunds would require different farm machines than rototilling tractors that cause erosion.

> "Mastering the Art of Half Moon Bunds" https://youtube.com/watch?v=XyH6dFlv9dk

> Andrew Million's light board videos are a great resource, as a software dev with no real experience in hydrological engineering for sustainable agriculture.

> "Inside Africa's Food Forest Mega-Project" https://youtube.com/watch?v=xbBdIG--b58&

Desert Control now has offices in Arizona. They specialize in water bags that catch silt for use as fertilizing soil amendments.

Mycorhizzae are essential to healthy soil. Plant residue can keep moisture in soil that you're trying to reestablish Mycorhizzae in so that roots establish so that the soil holds water. Geotextiles can also keep moisture in soil.

Chitosan-Alginate and/or plasma-fluffed hemp aerogel would make great geotextiles for erosion control, soil remediation, water bags, gauze, and diapers.

I've seen videos about how it's actually legal and recommended to cut the curb to harvest rainwater from the street for landscaping in Texas and Arizona now FWIU?

westurner•10m ago
Does the Miyawaki method also work in the Southwest; planting a whole grove of things that co-respirate and share roots?

> Akira Miyawaki and the Miyawaki method of forest cultivation for reforestation to fight desertification by regreening: https://en.wikipedia.org/wiki/Akira_Miyawaki

Pocket forest: https://en.wikipedia.org/wiki/Pocket_forest :

> The area to be planted is first covered with a layer of cardboard which is then covered with 3–6 in (7.6–15.2 cm) of compost or wood chips and allowed to acclimate to local moisture conditions for several months. The covered area is then planted with year-old plant nursery saplings spaced approximately 2 ft (0.6 m) apart. The entire surface area should be planted at the same time with a variety of native species so no saplings of the same species are adjacent to each other. Watering is unnecessary for native plants acclimated to the local environment; although watering for the first few years after planting, and during drought periods, will reduce mortality of individual plants [...]

> Three is the minimum number of different species of nursery saplings for planting a pocket forest

Meta's AI bets are swallowing almost all its free cash flow

https://www.businessinsider.com/meta-q2-2026-earnings-free-cash-flow-plunges-ai-investment-2026-7
1•mapping365•1m ago•0 comments

LLMs and Xfwl4

https://www.spurint.org/journal/2026/07/llms-and-xfwl4
1•Gualdrapo•1m ago•0 comments

FCC: Ban on Foreign-Made Robots Includes Robot Vacuums

https://www.pcmag.com/news/fcc-ban-on-foreign-made-robots-includes-robot-vacuums
1•dataneedscoffee•2m ago•0 comments

Remove watermarks and free pdf tools

https://www.removewatermarks.net/
1•adgine•2m ago•0 comments

Engineering a plant-derived nanofoundry to power mammalian cells

https://www.cell.com/cell/abstract/S0092-8674(26)00518-0
1•maxall4•3m ago•0 comments

From Academic Research to a Frontier LLM: A Case Study in DPO [video]

https://www.youtube.com/watch?v=rhA7pLVt4E0
1•erichocean•5m ago•0 comments

Companies' Handling of Users Privacy Rights Spurs States' Probe (2025)

https://news.bloomberglaw.com/privacy-and-data-security/companies-handling-of-users-privacy-right...
1•1vuio0pswjnm7•6m ago•0 comments

The Productivity Mirage

https://frantic.im/mirage/
1•msephton•7m ago•0 comments

We Can Spend $50B a Year Effectively

https://www.cgdev.org/blog/we-can-spend-50-billion-year-effectively
1•alphabetatango•8m ago•0 comments

Lyricsfile is a YAML-based format for lyrics

https://lrclib.net/lyricsfile
1•coolcoder613•9m ago•0 comments

Sentinel – opens a PR to fix Stripe breaking changes before they land

https://github.com/rtsdque/sentinel
1•rtsdque•9m ago•0 comments

We're giving 100k academic researchers free access to our frontier models [video]

https://www.youtube.com/watch?v=MLehRytu9Zo
1•bryan0•11m ago•0 comments

Software Applications Inc

https://software.inc
1•audreyfei•15m ago•0 comments

OpenDerm – Open-source robotic 3D skin imaging

https://openderm.github.io/
2•avyfain•16m ago•0 comments

What's Going On – R/Anthropic

https://www.reddit.com/r/Anthropic/comments/1v8t9v0/whats_going_on/
4•obilgic•16m ago•0 comments

OpenLore: Deterministic, local-first memory and guardrails for AI coding agents

https://github.com/clay-good/OpenLore
1•mafro•18m ago•0 comments

We shall dwell amidst wonder and glory for ever: On weird fiction

https://clereviewofbooks.com/we-shall-dwell-amidst-wonder-and-glory-for-ever-on-weird-fiction/
2•plimp•19m ago•0 comments

Turns Out We Blew Up All Those Boats in the Caribbean for Nothing

https://www.esquire.com/news-politics/politics/a73287733/caribbean-boat-bombings-us-pete-hegseth-...
11•rbanffy•25m ago•0 comments

Beethoven's 'Pathétique' Adagio, hand-animated in brush and ink (2020) [video]

https://www.youtube.com/watch?v=Wo_6PxudBmU
1•ahmet_dedeler•26m ago•0 comments

Enabling two settings tripled our scores on the ARC-AGI-3 benchmark

https://openai.com/index/how-two-settings-tripled-our-arc-agi-3-scores/
1•tedsanders•27m ago•0 comments

Kyverno Policies to Secure Your Kubernetes Cluster

https://medium.com/@devarshidev/5-kyverno-policies-to-secure-your-kubernetes-cluster-9fdbf971b7b2
2•devarshishimpi•28m ago•0 comments

Man and the Computer by John G. Kemeny (1972 book by the co-creator of BASIC)

https://archive.org/details/mancomputerbyjoh0000john
5•MilnerRoute•31m ago•1 comments

Why Rocq is better than Lean for program verification

https://joomy.korkutblech.com/posts/2026-07-28-why-rocq-is-better.html
2•birdculture•34m ago•0 comments

LLM Honeypot

https://llm2human.pages.dev/
7•8thom•34m ago•2 comments

Swift on Windows: A Year of Refinement

https://speakinginswift.substack.com/p/swift-on-windows-a-year-of-refinement
2•wrxd•38m ago•0 comments

CherryTree Note Taker App

https://www.giuspen.net/cherrytree/
1•theMezz•38m ago•1 comments

Show HN: An AI Color Grader – Pico

https://www.perbhat.com/pico
2•perbhat•42m ago•0 comments

Microsoft keeps capex unchanged, the only datacenter giants to hold AI spending

https://www.businessinsider.com/microsoft-ai-capex-unchanged-data-centers-spending-tech-giants-20...
8•mapping365•42m ago•2 comments

Rogue OpenAI agent that hacked startup tried to attack other firms

https://www.theguardian.com/technology/2026/jul/29/rogue-openai-agent-that-hacked-startup-tried-t...
7•jethronethro•42m ago•0 comments

How HN: Vetted Startup – discover, buy, and sell startups with verified revenue

https://vettedstartup.com/
1•mattdarren•43m ago•0 comments