Water securityPeople prefer conservation as way to protect drinking water

Published 9 November 2016

The water crisis in Flint, Michigan put the need to protect and invest in clean drinking water front and center in the minds of many Americans. But how to go about investing, as well as how to get the public on board with such spending, is a difficult challenge that faces policymakers. Researchers have found that when given the choice, people prefer to invest their money in conservation, such as protecting key areas of a watershed — also referred to as green infrastructure — than traditional water treatment plants, also referred to as gray infrastructure.

The water crisis in Flint, Michigan put the need to protect and invest in clean drinking water front and center in the minds of many Americans. But how to go about investing, as well as how to get the public on board with such spending, is a difficult challenge that faces policymakers.

UD says that a new study from the University of Delaware has found that when given the choice, people prefer to invest their money in conservation, such as protecting key areas of a watershed — also referred to as green infrastructure — than traditional water treatment plants, also referred to as gray infrastructure.

They also found that different messages related to climate change, global warming, extreme weather events and decaying infrastructure affect people’s willingness to contribute to projects.

The study was led by Kent Messer, the Unidel Howard Cosgrove Chair for the Environment and director of the Center for Experimental and Applied Economics (CEAE) in the University’s College of Agriculture and Natural Resources (CANR).

The results were recently published in the Agricultural and Resource Economics Review.

Leaning green
Participants in the study’s field experiment heavily favored green infrastructure over gray infrastructure.

“People are much more willing to pay for conservation,” Messer said. “They like the idea of permanently protecting the waters from their source and avoiding having to do technological fixes.”

Using a field experiment involving 251 adult participants from sites throughout northern Delaware — including UD’s Ag Day, the New Castle County Farmers Market, and the Southbridge community in Wilmington — the researchers had participants perform a simple task in which they earned money for that action and were then asked if they would like to donate the funds to an organization that could help in alleviating water quality issues in the future.

“People didn’t just show up and automatically receive money. They earned their money. Then, we asked if they wanted to donate it to either a conservation cause (green infrastructure) or to help drinking water utilities (gray infrastructure),” said Messer who added that the CEAE likes to apply a charitable giving context to their research to see what people will actually do with the money as sometimes surveys aren’t always aligned with actual behavior.

Participants could donate to either the American Water Works Association (AWWA), representing the traditional gray infrastructure, or the Conservation Fund, representing green infrastructure.