Posts by: Kai Olson-Sawyer

Massive Scale Evaporative Water Losses from Irrigation

October 19, 2018

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 […]

How the United States Uses Water

October 13, 2018

Water usage in the United States is multi-faceted and the country is fortunate to have ample water resources compared to many other countries around the world. Water protection and conservation are still important though, because water is limited and no place is immune from drought. Water usage in the United States has dropped significantly over […]

The Difference Between Water Conservation and Efficiency

October 2, 2018

Water seems plentiful but droughts and shortages can happen anywhere and it’s helpful to know the difference between conservation and efficiency. What is Water Conservation and Efficiency? Many factors affect how much water people use in a day, including where they live, whether they live in a house or an apartment and how they live […]

Calculator Featured in Tampa Bay Times, Florida’s State of Water

September 20, 2018

  The Tampa Bay Times is a member of the Florida Waters Stewardship Program, which is a seven-week course that teaches residents how to do their part to protect the Sunshine State’s famous waters. The course used our own GRACE Water Footprint Calculator as a teaching tool, and based on its effectiveness, the news outlet […]

Transitions to Freshwater Sustainability

August 24, 2018

Driven by water-related crises around the world, humans are changing how and where we use water. The forces driving this change include: “mismatches between supply and demand; the continued failure to meet basic human needs for water and sanitation; expanding ecological degradation due to extraction of water from natural systems and human-caused climate changes; the […]

Austin Water Lays the Path Forward for the Next 100 Years of Water Conservation

August 9, 2018

The Austin, Texas Water Forward Task Force drafted a 100-year water supply plan to shift the way the city thinks about its water resources and they recently presented their draft plan to their Environmental Commission. The Colorado River is Austin’s sole source of drinking water and the city is entitled to 325,000 acre-feet of water […]

You Probably Have No Idea Just How Much Water is Needed to Produce Electricity

August 9, 2018

In the US and Europe, more than half of water use goes to power generation. This is because most of that power is generated by thermoelectric power plants which use coal, natural gas and nuclear fuel to create steam that turns turbines. The process takes massive amounts of water to cool the steam, after which the water is […]

Water Conservation in the American Southwest — A Radio Series

July 30, 2018

Listen to (or read) the newly released “Water Conservation in the Southwest,” a five-part radio series on water use in the face of scarcity in the arid Southwestern states. The series on water conservation is done in collaboration with KUER, KUNC, KJZZ and the Mountain West News Bureau. The importance of water as the foundation […]

Top Degrees Hard Earned (Hint: They’re in Water Footprints!)

July 27, 2018

The University of the Free State (UFS) is all about water footprints, as Cape Town continues struggling with severe drought. UFS recently conferred three degrees to academics involved in  water footprints for the Water Research Commission (WRC). The university bestowed a master’s degree on Adetoso Adetoro and two PhD degrees on Dr Enoch Owusu-Sekyere and […]