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New Indirect Potable Reuse Project Comes To Southwest

In water news and events

Arizona has been reusing wastewater since the 1920’s, but new rules permitting direct potable reuse make it possible for utilities to plan new drinking water projects.  Treated wastewater would have to go through “a multistage, multi-barrier treatment process with controls, real-time monitoring, a whole lot of microbial monitoring and chemical monitoring,” according to hydrogeologist Chuck Graf. A new $2.2 million system …

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Reducing Your Carbon — and Water — Footprint Still Matters

In water news and events

In recent weeks, a number of environmentally minded political pundits have stated that voting for enlightened politicians is the sole way to change direction and policy towards a more sustainable society, particularly when it comes to climate action. In a Slate article, two social psychology researchers review the science and show that norm changes — like reducing one’s carbon footprint …

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Projected Changes in Persistent Extreme Summer Weather Events: The Role of Quasi-Resonant Amplification

In water news and events

Warming in the Arctic is changing how the jet stream functions, and as a result, weather is getting more extreme, as the world witnessed in 2018. An international group of researchers found that increased warming caused by increased carbon dioxide in the atmosphere has constrained the action of jet stream winds which has increased the frequency of heat waves that …

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The Precarious Plan for the Lake Powell Pipeline

In water news and events

Gabriel Lozada, a theoretical mathematician at the University of Utah and a pro bono consultant for the Utah Rivers Council, suspected that government officials were overstating the benefits and ignoring potential costs of a water supply pipeline that would take water Colorado River out of Lake Powell to southern Utah. So Lozada built a mathematical model of possible economic impacts …

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Scientists Identify Global Water Hotspots And Recommend Cooperative Resolution

In water news and events

Scientists at the European Union’s Joint Research Centre completed a study that identified potential zones of freshwater conflict and developed strategies to boost cooperation between affected countries. Because competition over limited water resources remains a chief concern that can create and worsen political tensions, instability and societal unrest, attention to such factors as climate change and demographics loom large. The …

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Massive Scale Evaporative Water Losses from Irrigation

In water news and events

A new study evaluating evapotranspiration trends in California published in Water Resources Research by Szilagyi and Jozsa used a modeling approach called “the complementary relationship of evaporation,” which predicts evapotranspiration without needing detailed information on the Earth’s surface using observations of the humidity of the lower atmosphere. The study demonstrated that irrigated regions had sustained or increasing evapotranspiration during a …