National Society of Professional Engineers
October 2010 - Posts - Sustainability in Engineering

October 2010 - Posts

Our Precious Water Resources

When we think of efficiency and conservation, most of us immediately think of our electric use and how many miles we can go on a gallon of gas, but how many of us think about our water consumption? I am a water resources engineer, so my hand goes up, but most people don’t. And I’m not talking just about how much water we consume on a given day, but also about the amount of water wasted every day simply trying to get it to us.

Our deteriorating infrastructure is in the news lately, but there is little talk of our water and wastewater infrastructure. Roads, bridges, airports and our electrical grid tend to take center stage. While each of these are important to our public safety and wellbeing, our water and wastewater infrastructure are at least as vitally important to our public health and sound environmental stewardship. I would also argue that our water and wastewater infrastructure is in much more dire shape than these other public investments.

In many parts of the world (and even in some corners of the U.S.), water is considered a very scarce and valuable resource. Given this fact, why don’t we invest more in upgrading deteriorated distribution systems, more efficient water and wastewater treatment systems, water reclamation and recycling systems?

On September 6, the Obama administration proposed allocating $50 billion to infrastructure projects. This is a good start, especially if the money is earmarked for water and wastewater infrastructure. It’s time for the engineering community to start speaking up about the desperate needs of our water and wastewater systems.

Where Did All the Oil Go?

I’ve found the disparity of opinions concerning where the oil form the BP spill has gone quite fascinating and at least a little troubling. BP and even some federal agencies suggest that the oil that didn’t surface has disbursed and will likely cause no further significant environmental risk. Others say, “Not so fast. The oil didn’t simply disappear.”

The daughter of a good friend is a recent Ph.D. in marine toxicology, and she assures me that a vast amount of the oil remains at some depth below the surface (likely below the thermocline), moving around in plumes and wreaking havoc. BP’s efforts to pump dispersants into the oil plume at the breach deep in the ocean probably prevented a significant amount of oil from surfacing (which is probably a good thing), but we must fear the “out of sight, out of mind” mindset, that would tell us to ignore it since we can’t see it.

Damage to the vast ecosystems of the gulf have been and will likely be affected for many years due to this catastrophe. Engineers and scientists must together be diligent in investigating and trying to understand just what happened to all that oil, what impact it will have down the road, and what we can do about it. Society should demand no less from our professions.