Water: The Measure of America

A subtle death-process played a godfather role in the conception and designing of the refrigerator, the vacuum cleaner, the automobile, and the turbine. Natural laws were stripped of wisdom and projected into matter. — Theodor Schwenk.

Thelma and Harold Grochocki (the couple in the cartoon, in case you didn’t recognize them) not only sprayed a heavy dose of some pretty deadly roachicides yesterday; they also fertilized, mowed, and watered their lawn, ate their fill of burgers, steak, bacon. and eggs, drove their van 63 miles, poured half a can of paint thinner and a jar of pickle juice down the drain, watched TV most of the afternoon, washed their clothes, their dishes, and their dog, bathed, perfumed, and deodorized their bodies, vacuumed the carpet, and urinated and defecated repeatedly. It is interesting that although they spent most of their day at activities that directly or indirectly contaminate water, they seem surprised that the stuff that flows on demand from the kitchen tap isn’t pristine mountain spring water. Read more

Drinking Recycled Water? Study Establishes Methods to Assess Recycled Aquifer Water

The Australian Government National Water Commission funded a study to establish an approach to assess the quality of water treated using managed aquifer recharge. Researchers at Australia’s CSIRO Land and Water set out to determine if the en product would meet standard drinking water guidelines.

 

At the Parafield Aquifer Storage, Transfer and Recovery research project in South Australia, the team of scientists harvested storm water from an urban environment, treated it in a constructed wetland, stored it in an aquifer, and then recovered the treated water via a well. Read more

Water Funds: Investing in Nature and Clean Water

Our water comes from nature. The vast majority of the world’s population depends on rivers and lakes to supply water for drinking, cooking, growing crops and more (i). Yet worldwide we are crippling nature’s ability to provide the clean water we need in order to live and to thrive.

Scientists predict that, if we continue on our current course, two-thirds of the world’s population will face water shortages by 2025.

As the world’s forests and grasslands are degraded or removed, the threats to our water supplies grow. The roots of trees and other native vegetation filter water, prevent erosion and slow water down, helping keep flow levels steady. Without this protective system, lakes and rivers are exposed to soil run-off, chemicals and other debris carried across the land by rain and snowmelt.

When sediment and pollution wash into our waterways, businesses, communities and governments are forced to pay higher costs for water treatment. In vulnerable communities that simply cannot afford water treatment, people face increasingly dirty, unhealthy water. Read more

Rivers and Lakes – Protecting Water for People and Nature

We know we need clean drinking water in order to live. But rivers and lakes – freshwater ecosystems – provide much more. They water our crops, give us fish to eat, light our homes and bring us joy.

Yet around the world we are crippling the ability of rivers and lakes to support people, plants and animals. Scientists predict that by 2025 more than two-thirds of the world’s population could face water shortages. Read more

How Do Protein Binding Sites Stay Dry in Water?

In a report to be published soon in The European Physical Journal E, researchers from the National University of the South in Bahía Blanca, Argentina studied the condition for model cavity and tunnel structures resembling the binding sites of proteins to stay dry without losing their ability to react, a prerequisite for proteins to establish stable interactions with other proteins in water.

E.P. Schulz and colleagues used models of nanometric-scale hydrophobic cavities and tunnels to understand the influence of geometry on the ability of those structures to stay dry in solution.

The authors studied the filling tendency of cavities and tunnels carved in a system referred to as an alkane-like monolayer, chosen for its hydrophobic properties, to ensure that no factors other than geometrical constraints determine their ability to stay dry. Read more