http://www.bayjournal.com/article/nitrogen_pollution_reductions_lagging_epa_warns
Monday, June 20, 2016
http://www.bayjournal.com/article/nitrogen_pollution_reductions_lagging_epa_warns
Thursday, April 25, 2013
We are seeing a global increase in the frequency and severity of Algal blooms
Pea Soup
Sunday, April 1, 2012
Biodiesel from Diatoms
Thursday, December 29, 2011
Water Pollution due to farming - Ohio
Water quality issues
Nutrient and sediment loading into Ohio’s lakes and streams has been an issue for 40 or more years, and farmers’ conservation efforts have made a substantial improvement.
But, in the past year or two, it’s become increasingly clear more efforts are needed to tackle a slightly different issue: dissolved reactive phosphorous. Unlike other forms of phosphorous, the dissolved form is considered 100 percent available to unwanted plant growth — namely the harmful algal blooms.
Throughout the first part of the year, state officials put together a statewide task force to address what farmers should do. The group became known as the Agricultural Nutrients and Water Quality Work Group, and is comprised of staff from Ohio Department of Agriculture, the department of natural resources and Ohio Environmental Protection Agency.
Dozens of farmers and farm agencies are helping the group form new recommendations for Ohio, to help improve water quality and reduce dissolved phosphorous levels.
By the close of the year, water quality was on the minds of grain and livestock farmers across the state.
Monday, May 30, 2011
Stephen Carpenter and the 2011 Stockholm Water Prize
In March 2011, an American environmental scientist, Stephen Carpenter of the University of Wisconsin-Madison, won the Stockholm Water Prize. It’s given each year to someone who’s worked to improve the state of the world’s water resources. Carpenter’s focus – freshwater lakes. He told EarthSky:
I have focused particularly on the over-enrichment of freshwater with nutrients.
That is, runoff from farms into lakes. Dr. Carpenter has studied the American Midwest for nearly 40 years. These lakes suffer from an influx of nutrients from fertilizers and manure. Carpenter said:
Pollution of rivers and lakes and reservoirs with those materials lead to blooms of toxic algae, loss of oxygen, fish kills and related problems.
Dr. Carpenter tries to address these problems at their source – the farmer’s fields. He said the major culprit, at least in the upper U.S. Midwest, is manure and over-fertilization – people using way too much fertilizer on the land. He said:
Decreasing fertilizer use is mainly a matter of giving farmers accurate information about how much fertilizer they need often they don’t need to spend so much money adding fertilizer, once they know that, they’ll add less.
The manure problem is much harder to deal with, because this is dairy country and there’s a lot of manure up here, and it’s a waste product that farms have a difficult problem disposing of. We have worked to develop manure containment facilities, for example, that keep the manure from running off, there are certain times of year when it is much more harmful to apply the manure to land, and we try to identify those times of year. Right now we’re experimenting with manure digesters that actually convert the manure to natural gas, which makes energy.

The manure problem is hard to deal with, said Carpenter, because Wisconsin is dairy country. Image credit: Royalty-free image collection
A number of Wisconsin lakes have restored health – more big fish, fewer toxic blooms – thanks to Dr. Carpenter’s work. He explained why he thinks his team has been able to take their scientific work from theory, into community practice:
I think an important part of what we do is to help people understand that no one really understands. These huge complex systems, and anything we try is to some degree experimental. But doing something is way better than doing nothing.
Dr. Carpenter said that another vital part of his work with Wisconsin’s lakes involves collaboration with fisheries managers and the general public, to control what’s being fished in local lakes. He said:
Fisheries are managed by setting limits on the sizes of fish that can be removed, and on the numbers of fish that can be removed. If the size limits are adjusted so that only the very largest fish are removed – in other words, you cant take a fish unless it’s a very big one – then the effect is to increase the overall size of the individual fishes in the population, you end up with a lot more big fish. You end up with more grazers, and less algae.
He said that no two technological solutions for lake pollution across the world look exactly alike.
Technology is basically the application of human knowledge to solve a problem. In many cases, these are just farming smarter in a given place.
For example, in Wisconsin, there are ways of using manure on farms that increase the water-holding capacity of the soil, so those methods decrease flooding, wastage of water, and they decrease runoff of nutrients. A simple thing, but it has to be developed region by region. The practices that work for Wisconsin are probably not the practices that will work for Arkansas. It takes a lot of local work but it can be done.
Dr. Carpenter added that local lake problems add up to global ones.
I think the biggest issue facing freshwater, globally, is agriculture. Agriculture is the largest consumer of freshwater among human activities. It is the largest polluter of freshwater among human activities.
Agriculture is also one of the largest drivers of climate change, he told EarthSky.
Wednesday, January 12, 2011
Agriculture is responsible for one third of Antropogenic GHG emissions
Impact Investing in Sustainable Agriculture for a New Economy
According to a recent article from Scientific American, agriculture is responsible for one third of global greenhouse gas emissions from human activity. Agribusiness farming operations are notorious for nitrogen and phosphorus runoff (particularly from poultry and hog farms). In the Chesapeake Bay region, for example, one study estimated the price tag for restoring the bay at $19 billion, of which $11 billion would go toward “nutrient reduction.”
There are more than 400 such dead zones throughout the world. Additionally, heavily subsidized corn and soy feed to livestock contribute to massive deforestation in the developing world. Tufts University researchers estimate that in the United States alone, between 1997 and 2005 the industrial animal sector saved more than $35 billion as a result of federal farm subsidies that lowered the price of the feed they purchased. These statistics demonstrate both the complexity of the supply chain from feed farm to table, and illustrate the importance of sustainability in the American food production industry.
A sustainable alternative to the beef factory-farming model follows in the footsteps of conservationist pioneer Allan Savory. The recent winner of the prestigious Buckminster Fuller Prize, Savory developed the Holistic Management grazing technique during his time as a researcher and farmer in Southern Africa in the 1980s. By getting grazing cattle to stay in larger, tight herds, Savory was able to restore grassland vitality and increase grass biodiversity. Deep chewing of plant roots, paired with the repeated soil chipping of hooves, caused dormant seeds to germinate and water to penetrate below the surface. According to Shannon Horst, CEO and co-founder of the Savory Institute, ranchers can consistently double, and even quadruple livestock capacity over time. (See an article in TIMEfor more on the Savory grazing technique).
Perhaps the most interesting aspect of Savory’s work has been its appeal to both profit-driven investors and international development agencies like USAID as a tool to combat desertification in rural farming communities. Since 2005, USAID’s Office of U.S. Foreign Disaster Assistance has provided more than $1.1 million to support Savory’s African Centre for Holistic Management’s program to restore degraded land, revive water sources, mitigate the effects of global climate change, and increase crop yields. Savory and Horst have worked with range managers on ranches and community group ranches, demonstrating how to manage holistically in communal and private range lands, in partnership with USAID.
Within the past couple of years, for-profit enterprises like Grasslands, LLC are successfully implementing the Savory Holistic Management methodology. Grasslands owns and manages 14,000 acres in South Dakota, and is funded by a network of private impact investors likeArmonia, LLC and Capital Institute founder John Fullerton. The profitability of the Grasslands structure comes from ranching fees per head of cattle, and is based directly on the Savory Institute business model. By investing in companies like Grasslands, Fullterton and other impact investors are laying the foundation for new finance-based theories, tools, and metrics to serve the needs of a sustainable economic system.
In addition to increased yields of beef per acre, the Grasslands model also creates an opportunity to commoditize sequestered carbon for carbon credit trading. Steven Apfelbaum, Founder/Chairman of Applied Ecological Services, Inc., explained to TIME, ”healthy grasslands represents the ecosystem with the highest potential for carbon sequestration of any on the planet.” Ranches like those owned by Grasslands cover an estimated 30 million acres in North and South America, Australia, New Zealand, and Africa—and nearly half of the earth’s land mass. Given the shear vastness of the earth’s grasslands, holistic management and reclamation projects hold huge implications for changing the planet.
While Grasslands only just completed its first year in operation, rancher Jim Howell reports that the two South Dakota ranches are expected to double in value and in productivity over a ten-year period and to yield annual dividends on the order of 4% to 5% in the early years, increasing to 10% to 11%. In a recent Capital Institute article, Fullerton expressed his confidence that the Grasslands model can provide a profitable, scalable model for biodiversity recovery: “We have a case study here of true wealth creation in Grasslands,” he says. “We are building biodiversity, soil fertility, sequestering carbon, and generating financial returns. And if my belief of what will happen to ecosystem services plays out, we will make a lot more money with these assets than with most financial assets.”
For more on Grasslands and the Capital Institute’s sustainable investment agenda




