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?
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.
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.
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?
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. [...]
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.
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?
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.
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.
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.