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All articles tagged with #water

One Glass, Thousands of Atoms Drifting Through the World's Oceans
science1 hour ago

One Glass, Thousands of Atoms Drifting Through the World's Oceans

A 250 mL glass of water contains about 2.5 × 10^25 atoms, while all Earth's oceans hold roughly 5.3 × 10^21 glasses of water; thus that glass contains about 4,700 times more atoms than there are ocean glasses. If you marked every atom and mixed it back into the seas, thousands of those marked atoms would eventually appear in any new glass drawn anywhere on Earth, illustrating how unimaginably small atoms are relative to macroscopic objects and why biological molecules require enormous numbers of atoms to behave reliably.

via Space Daily|
#atoms#kelvin#oceans
Hidden Deep-Earth Ocean Could Triple Earth's Water
science14 days ago

Hidden Deep-Earth Ocean Could Triple Earth's Water

Scientists report a vast, bound water reservoir about 700 km below the surface, stored in the mineral ringwoodite in the mantle's transition zone. Using seismic data from roughly 2,000 stations and 500 earthquakes, they estimate this deep ocean could contain about three times as much water as all surface oceans, suggesting Earth's water partly originates from within and that the deep cycle helps keep surface oceans stable over geological time.

via The Daily Galaxy|
#deep-earth-water-cycle#mantle#ringwoodite
Billionaire-Backed AI Data Center Moves Forward in Utah, Sparking Protests
local24 days ago

Billionaire-Backed AI Data Center Moves Forward in Utah, Sparking Protests

Box Elder County commissioners unanimously approved moving forward with Kevin O’Leary’s Stratos data center, a sprawling AI-focused project that critics say could double Utah’s electricity use, strain water supplies from the Great Salt Lake, and significantly raise carbon emissions. Hundreds protested the plan, arguing the deal is shrouded in secrecy and will harm residents, while supporters point to on-site gas power, potential economic benefits, and claimed sustainability measures. The decision underscores growing tension over large-scale data centers and their environmental and public-cost implications in Utah.

via Common Dreams|
#artificial-intelligence#data-centers#energy
Costco Adds Water Option to Its $1.50 Hot Dog Combo as Coca‑Cola Signage Arrives
business1 month ago

Costco Adds Water Option to Its $1.50 Hot Dog Combo as Coca‑Cola Signage Arrives

Costco quietly expanded its iconic $1.50 hot dog combo to include a Hot Dog & Water option alongside the Hot Dog & Soda; the price remains $1.50 and unchanged since the 1980s, with CFO comments backing its stability. The change is reflected in some stores with Coca‑Cola beverage signage replacing Pepsi, and social media posts show the water option has been rolling out for months. The piece also notes related context: tighter access rules for outside food courts and Costco’s prior membership- and pricing-directions.

via TODAY.com|
#business#coca-cola#costco
Water's Hidden Critical Point Revealed in the Supercooled State
science1 month ago

Water's Hidden Critical Point Revealed in the Supercooled State

Stockholm University researchers used ultra-fast X-ray lasers to observe a hidden liquid-liquid critical point in deeply supercooled water at about -63°C and 1000 atmospheres, showing how two liquid forms merge at the critical point and clarifying water’s unusual density and other anomalies; beyond this point, water becomes supercritical.

via SciTechDaily|
#liquid-liquid-critical-point#phase-transition#science
Green-tech mineral race could create water-scarce sacrifice zones for the world’s poor
environment-energy1 month ago

Green-tech mineral race could create water-scarce sacrifice zones for the world’s poor

The Conversation piece by UNU researchers argues that the push to secure critical minerals for AI, EVs, wind, and digital tech risks concentrating pollution and water stress in poor communities. 2024 lithium mining alone consumed about 456 billion liters of water, with places like Chile’s Atacama using up to 65% of regional water and polluted rivers harming ecosystems. Health impacts include higher miscarriage rates, birth defects, infant mortality, cancers, and other illnesses linked to heavy metals, especially in the DRC’s cobalt and copper regions. The authors urge stronger international governance, binding supply-chain and environmental standards, local community co-governance, water-saving mining tech, better wastewater management, and greater recycling and product longevity to prevent “sacrifice zones” and ensure a just energy transition.

via The Conversation|
#critical-minerals#environment-energy#governance
Desert Exoplanets in the Habitable Zone May Not Harbor Life
science1 month ago

Desert Exoplanets in the Habitable Zone May Not Harbor Life

A University of Washington study finds that an Earth-sized planet needs a substantial surface water inventory—about 20–50% of Earth’s ocean volume—to maintain long-term habitability. On very dry worlds, the carbon cycle can break down, allowing CO2 to build up and heat the planet, potentially rendering it uninhabitable despite being in the habitable zone. Venus serves as a nearby analog, illustrating how small water differences can dramatically impact climate. The work suggests many desert-like exoplanets thought promising for life may actually be poor candidates and informs future observations and Venus missions.

via SciTechDaily|
#arid-planets#carbon-cycle#exoplanets
Coastal salt in drinking water linked to higher blood pressure worldwide
life-style1 month ago

Coastal salt in drinking water linked to higher blood pressure worldwide

A meta-analysis of 27 population studies (over 74,000 participants across multiple countries) finds that higher salinity in drinking water is associated with higher systolic and diastolic blood pressure and about a 26% higher risk of hypertension, especially in coastal populations where seawater contaminates freshwater. While individual increases are modest, the population-level impact could be substantial, highlighting an environmental factor in cardiovascular risk and the need for better drinking-water standards and further research. In the meantime, checking local water quality and managing overall sodium intake are prudent steps.

via The Independent|
#blood-pressure#high-blood-pressure#life-style
Milk Hydration Edge: It Keeps You Hydrated Longer Than Water—But It's Not a Daily Swap
health1 month ago

Milk Hydration Edge: It Keeps You Hydrated Longer Than Water—But It's Not a Daily Swap

Milk can keep the body in positive fluid balance longer than plain water in short-term tests due to its mix of electrolytes and macronutrients that slow gastric emptying and promote fluid retention. Multiple trials, including 2007 and 2016 studies, show milk beverages reduce urine output and have a higher hydration index than water, with milk permeate potentially performing even better. However, the hydration advantage appears only in the hours after drinking and comes with a high calorie cost (more than 1,000 calories per serving), making it impractical for everyday hydration. Water remains the recommended default for routine hydration, while milk may be useful for post-exercise recovery or specific needs.

via The Daily Galaxy|
#electrolytes#health#hydration