Showing posts with label nutrients. Show all posts
Showing posts with label nutrients. Show all posts

Monday, June 20, 2016



http://www.bayjournal.com/article/nitrogen_pollution_reductions_lagging_epa_warns

Nitrogen pollution reductions lagging, EPA warns

Pennsylvania, New York leave Baywide cleanup effort short of interim goals

  • By Karl Blankenship on June 17, 2016
The Susquehanna River, the Bay's largest tributary, carries nutrient and sediment pollution from Pennsylvania and New York. Efforts to curtail a key nutrient, nitrogen,  have fallen behind because of lagging cleanup progress in those two states, EPA says. (Karl Blankenship)
The Susquehanna River, the Bay's largest tributary, carries nutrient and sediment pollution from Pennsylvania and New York. Efforts to curtail a key nutrient, nitrogen, have fallen behind because of lagging cleanup progress in those two states, EPA says. (Karl Blankenship)
The Chesapeake Bay cleanup effort has fallen behind by almost 25 percent in reducing a key pollutant because of lagging progress in Pennsylvania and New York, federal regulators warned Friday.
The Bay cleanup plan imposed by the Environmental Protection Agency at the end of 2010 had called for 60 percent of the actions needed to restore Bay water quality to be in place by the end of next year — roughly halfway to the 2025 deadline the states had agreed upon.
Now, it appears the majority of the action to control nitrogen — the prime nutrient affecting algae growth in the Bay’s saltier water —may be left until late in the cleanup process, something officials had hoped to avoid.
“Overall, we continue to make progress, however, there are some sectors in some states where we are falling behind,” said Shawn Garvin, EPA’s Mid-Atlantic regional administrator, in releasing the agency’s latest evaluation of state efforts. “We recognize that based on actions taken to date, and the current projections, that it is unlikely that we will meet” the 2017 goals.
After analyzing progress made by each of the seven jurisdictions in the Bay watershed in 2014-15, and their expected efforts through 2017, the EPA expects Delaware, the District of Columbia, Maryland, Virginia and West Virginia will meet their interim goals for nitrogen phosphorus and sediment reductions, although not all were on pace to do that at the end of last year.
New York is expected to miss goals for all three pollutants, though, and Pennsylvania will miss the nitrogen and phosphorus goal.
EPA officials said they believed New York had adequate programs set up to ultimately get its cleanup back on track. Much more problematic is Pennsylvania, which Garvin said faces a “significant lift” to reach its goals. The state accounts for 89 percent of the 10 million-pound Baywide nitrogen shortfall projected for the end of next year.
The Bay cleanup plan, or pollution diet, called for reducing the amount of nitrogen entering the Bay annually from 260.2 million pounds in 2010 to 219.5 million pounds by 2017.
Pennsylvania officials in January announced plans to “reboot” the state’s cleanup efforts, but the EPA said what it’s seen so far is not enough to get the commonwealth back on track to meet its 2025 goals.
EPA’s review said Pennsylvania would need to place “considerably greater emphasis” on controlling runoff from agriculture, an effort that has suffered from years of underfunding and understaffing.
The agency also expressed doubt that the state could meet its stormwater goals, and suggested that some of that shortfall be shifted to other sectors, such as wastewater treatment plants, where nutrient reductions are ahead of schedule.
Federal regulators warned that when Pennsylvania develops a new strategy to guide cleanup efforts from 2018 through 2025, the agency may require state officials to provide more documentation than other states about the adequacy of their plans.
EPA officials also warned they could take a variety of other actions if greater progress is not made, such as increasing oversight of how federal grant money is spent, and expanding regulatory programs to cover smaller farm animal feeding operations.
Neil Shader, press secretary of the Pennsylvania Department of Environmental Protection, acknowledged cleanup efforts lagged from “years of inaction” that preceded the administration of Gov. Tom Wolf, but said state agencies are working with conservation districts and stakeholders to accelerate nutrient control efforts.
“Through the administration’s “reboot” strategy, we will build on these early successes and continue to identify additional pollution reduction opportunities and engage with the public to bring every possible resource to the effort,” Shader said.
But Harry Campbell, Pennsylvania executive director of the Chesapeake Bay Foundation, said the state lacked adequate funding to enact its programs. It’s “unclear,” he added, “when or if those vital resources will be made available.”
While other states were making better progress, the review offered hints of future concerns.
Much of the reductions so far have come from wastewater treatment plants, which account for about three-quarters of all nitrogen reductions since 2010. The wastewater facilities already have achieved their share of the overall nitrogen reduction goal for 2025.
But that means about 71 percent of future nitrogen reductions will need to come from agriculture, where progress has been more difficult to achieve. EPA’s review showed that through 2015, farming operations in Pennsylvania, New York, Delaware and Maryland all lagged in meeting their nitrogen reduction goals.
Nitrogen reductions from the heavily agricultural watersheds of the Susquehanna River and the Eastern Shore are essential to reducing the oxygen-starved dead zone in the upper Bay.
“We recognized from the outset that our agricultural sector is an area that we continue to need to work with,” Garvin said. He said the agency is working with the states to get programs in place to help meet the goals, find additional resources and target programs to areas that would be most effective.
Besides citing problems in Pennsylvania, the agency also downgraded its rating of Delaware’s agricultural program to “enhanced oversight” because of concerns over implementation of its permitting program for livestock operations and its nutrient management program.
In a statement, Delaware officials said they considered EPA’s evaluation “fair and objective” but expressed a “continued commitment” to reduce nitrogen from agriculture, stormwater, wastewater and septic systems.
Pennsylvania, New York and Maryland face an extra challenge as they may need to find ways to offset additional nutrients which are no longer being trapped behind Conowingo Dam, and are flowing into the Bay from the Susquehanna. As part of its review, the EPA told all three states that they need to work together to develop a strategy to achieve pollution reductions beyond those originally planned.
The state-federal Bay Program is in the midst of a multi-year review of cleanup progress. That midpoint assessment, when complete next year, is likely to show even greater pollution reduction shortfalls for all jurisdictions as it takes into account phosphorus-saturated soils, climate change, land-use changes and other issues.
While the EPA review found the region was on track overall to meet phosphorus and sediment goals, the agency warned that could change once the midpoint assessment is complete., The EPA said that “changes in levels of effort may be necessary in order to achieve the 2025 targets for all three pollutants.”
“We recognize that coming out of the midpoint assessment … things are just going to get more and more difficult, and we are committed to working together to accomplish those goals.” Garvin added.
The EPA in 2010 established a Baywide cleanup plan, known as a Total Maximum Daily Load, that established annual limits on the amount of nitrogen, phosphorus and sediment — the pollutants primarily responsible for fouling the Chesapeake ’s water quality.
Because of the failure of previous cleanup plans to meet deadlines, the EPA and states set a series of two-year goals, known as milestones, to help keep efforts on track toward the interim 2017, and ultimate 2025, goals.
Nonetheless, William Baker, the bay foundation’s president, noted that the previous two years was the third straight milestone period in which Pennsylvania missed its goals.
“It is well past time for Pennsylvania to accelerate its pollution reduction efforts, and EPA must do more to ensure that Pennsylvania obeys the law, he said.
The full reviews can be found here

Thursday, April 25, 2013

We are seeing a global increase in the frequency and severity of Algal blooms

http://news.nationalgeographic.com/news/2013/04/pictures/130423-extreme-algae-bloom-fertilizer-lake-erie-science/


Pea Soup

Photograph from China Daily/Reuters
A boy swims in algae-covered waters off the coast of Qingdao, China (map) in 2011—just one of the places around the world where algae blooms are a growing problem. (Related pictures: "Photos: Thick Green Algae Chokes Beach—Swimmers Dive In.")
With an estimated seven billion people and counting, the world's population will only get hungrier. The advent of fertilizers and high-yield crops have helped growers keep pace with the demand for food.
But there's an unintended crop flourishing around the world that is not always so beneficial. Microscopic, plantlike organisms called algae thrive on the excess nutrients—like nitrogen and phosphorus—found in fertilizers that make their way from backyards and fields, producing blooms that can sometimes be seen from space.
Combined with warming temperatures and water circulation patterns, coastal areas such as Qingdao, the Gulf of Mexico, and the U.S. West Coast—as well as freshwater systems like the Great Lakes—are no strangers to enormous algae blooms that can turn the water green or red. (Related: "Harmful Algae Blooms Plague Lake Erie Again.")
Some of these blooms can create dead zones, or areas that are deprived of oxygen, in the water. And some algal species can also produce toxins that wreak havoc on human livers and neurological functions and cause seizures in marine mammals. (Related: "Sea Lion Seizures May Result From Toxic Algae.")
"There's no question in my mind that we are seeing a global increase in the frequency and severity of these [blooms]," said David Caron, a researcher at the University of Southern California (USC) in Los Angeles who studies harmful algal blooms.
Jane J. Lee
Published April 23, 2013

Sunday, April 1, 2012

Biodiesel from Diatoms





Diatoms grown in a tank using Urine as a the source of nutrients N and P and Nualgi as the micro nutrient input.

Thursday, December 29, 2011

Water Pollution due to farming - Ohio

http://www.farmanddairy.com/news/top-farm-stories-of-2011/32965.html

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




American environmental scientist Stephen Carpenter won the 2011 Stockholm Water Prize – given to someone who’s worked to improve the state of the world’s water resources. Carpenter’s focus – freshwater lakes.

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

Dec. 22 2010 - 1:52 pm | 1,051 views | 1 recommendation | 6 comments

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