Agricultural Nutrient Run-off: “Like Death by 1,000 Cuts.”

There is a special sensation that comes from a long ride that passes green fields. Some of those fields produce grains for human consumption. Some produce grass used for grazing cows and sheep and horses. With heads down, these animals enjoy eating whatever happens to be growing at the time. Some of those animals produce milk. Some produce meat for consumption. All of those animals are there for a reason – and that reason is not simply to be viewed by passing travelers.

To achieve those plush fields of grasses and grains, farmers must use chemicals. Two very important chemicals are nitrogen and phosphorous. From an earlier article: Agricultural Runoff has Harsh Impact on Environment, the reality of these contaminants becomes clearer. When these are combined with the large volume of animal waste, there is usually a very toxic run-off that “depletes oxygen in streams and, with fecal bacteria, make waterways unfit for recreational use and harmful to aquatic life.

Even if there are no streams and rivers within proximity of farms, “bacteria can also quickly contaminate drinking water aquifers if it seeps in through fractures in the bedrock.” Unlike an industrial spill whose source can be easily identified, “nutrient runoff is in some ways harder to stop than industrial pollution because it’s difficult to trace its source.

There is no easy solution to this problem. As dietary habits continue to consume larger and larger quantities of animal protein,  protein demands rise and more and more animals are needed. As population rises, more and more food is needed.

From the Editorial: Coalition Urges Congress to Act on Nutrient Run-off, the severity of this toxic impact is even clearer.

“Across the nation, more than 50% of rivers, streams and lakes and nearly 60% of bays and estuaries are impaired because of nitrogen and phosphorous. In the US and around the world, water pollution from agriculture is costing billions of dollars per year, especially in developing countries. And, the problem is only going to grow in places like China and India…”

We must give priority to resolving these and the many other environmental pollutants or the water that we drink and the food we eat may cause great harm to our quality of life.

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Peat Bogs: One of Nature’s Important Carbon Sinks

I am pretty sure I have never seen a peat bog. If I had, I certainly didn’t realize what it was. A recent article from the Guardian puts peat in a much clearer perspective. Peat is an excellent way to put organic matter into the soil. Where does peat come from, why is it important and what is the controversy about the continued use of peat?

This link from Backyard Gardener will provide some important details about peat. For starters, like most resources being depleted in nature, peat takes quite a long time to form and is being used up faster than it being replaced.

The process of creating a peat bog takes thousands of years which is why sustainable, large-scale extraction is impossible. The extraction is always faster than the growth.

There has been a serious effort to raise the awareness about the disadvantages to the environment with the continued mining of peat for commercial purposes. All of the attention being given to the rise in the level of atmospheric gasses and their contribution to global warming will help to put peat into its proper perspective.

Peat is produced by the decomposition of bog plants. Normally plants decompose into carbon dioxide, a greenhouse gas. Because peat is formed in the watery environment of an oxygen-free bog it decomposes into carbon. That carbon stays in the bog, locked away from the atmosphere. Peat bogs are wonderful carbon sinks…

This article from The Guardian: Gardeners Should End Their Love Affair with Peat sheds new light on the soggy wet bogs of peat.

There is even an International Bog Day – 30 July.

 

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America’s Water Infrastructure: Leaking into the Future / Part 2

The previous related Water Infrastructure post is important for understanding a bit about the history of water purification and to introduce the summary of a study by Standard and Poors.

This post provides an Editor’s response to this report that appears in the May 2012 issue of Water Efficiency.

“But…the S&P report is only the tip of the iceberg…The real cost of repairing and expanding the US drinking water infrastructure at $1 trillion in the next 25 years! And where will the money come from to fund these expenses? Higher water bills and fees.

Facing reality is not an easy thing to do. For far too long, the actual cost of water has not been properly assessed to usage. This will need to change going into the future. Confronting Crisis provides such an introduction to this reality for the many US municipal water infrastructures.

 

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