Urban Wastewater: One Man’s Waste Is Another Man’s Treasure

by | 3.21.2012 at 11:30pm | 3 Comments
A "living machine" installation at the new Port of Portland headquarters, an example of new approaches to decentralized wastewater treatment.  Source: Wikimedia Commons.

How can we overcome the main challenges we face in our urban wastewater systems today? Are there opportunities to improve sustainability in water treatment systems in US cities to support local food security?

What’s in Your Rice? A Look at Where Rice in the U.S. Comes from

by | 3.21.2012 at 10:58pm
Farmers transplant rice in Punjab, India.

US rice production dominates our consumption at over 90% (USDA, 2012), and the question is whether or not that choice is the best one for our water and our environment.

Hydraulic Fracturing and Food Security: Can We Have Our Cake and Eat it Too?

by | 3.21.2012 at 10:27pm | 1 Comment
Natural gas drilling rig in Roulette, Pennsylvania. Source: Wikimedia Commons

What are the implications of hydraulic fracturing on agriculture and food security? In agricultural areas with widespread, ongoing hydrofracking, there have been incidences of livestock poisoning from contaminated surface water sources or grasses, and soil contamination from explosions, spills, flares, irresponsible fracking-wastewater treatment, and leaky gas pipes.

Water and Food Facts for World Water Day

by | 3.19.2012 at 4:37pm
Irrigation1

March 22 is World Water Day, and its theme this year—water and food security—couldn’t be more pressing. But what do we really know about water—where it goes, what it’s used for, and how to preserve it?

The Sundarbans

by | 3.16.2012 at 4:28pm
Boat Prow

After finally reaching the Mongla and our boat, we settled into our new home. It is a similar design, but much larger than the one we used in September. As we ate dinner and explored the ship, it started the overnight journey to the southeastern part of the Sundarbans where the wildlife is most plentiful. [...]

Finding the Link Between Water Stress and Food Prices

by | 3.16.2012 at 2:46pm | 1 Comment
foodriots

Over the past decade, average global food prices have more than doubled, with 2008 and 2010 seeing excruciating price spikes that each had far-reaching economic, geopolitical and social consequences.

Facing the Food and Water Challenges of the Future

by | 3.13.2012 at 2:40pm | 3 Comments
Rice terraces in North Vietnam. Photo credit: IRRI Images

The global population, now 7 billion, is expected to reach 9 billion by 2050 and will require 70 percent more food than we are producing today, and much more water for agriculture, drinking and industry. Will we have enough water to meet the demand?

Class Trip – to Bangladesh

by | 3.12.2012 at 6:45am | 1 Comment
Viewing Sirajganj embankment by boat

To help my students in a class on hazards of Bangladesh better understand the country, I am taking them there to experience Bangladesh for themselves.

The Groundwater Crisis and the “Grass that Grows in the Water”

by | 3.7.2012 at 5:48pm
pump

Rice is the world’s third-largest crop after wheat and corn; by some estimates it accounts for fully one-fifth of the total calories consumed by the human race. Given these facts, it’s not surprising that countries that have historically struggled with devastating famine would do whatever it takes to ensure strong production of the grain, even if it meant promoting growing practices that would ultimately prove unsustainable.

China’s South-North Water Transfer Project: A Means to a Political End

by | 3.5.2012 at 8:30am | 1 Comment
A sign promotes China's South-North Water Transfer project

In order to maintain the status quo, let alone to grow, cities like Beijing, Tianjin, Shijiazhuang and Zhengzhou need more water. But the South-North Water Transfer Project–which when completed will transfer 174 times more water per year than the city of Los Angeles receives from various diversions of the Colorado River– is putting in place a fundamentally unsustainable growth trajectory that could undermine the stability so vigorously sought by the leaders of the nation.