Sentences with phrase «fertilizer runoff»

For example, fertilizer runoff from conventional agriculture is a major culprit in creating dead zones — low oxygen areas in the oceans where marine life can not survive.

Another key question is how the production of methane by these organisms is influenced by environmental conditions in the ocean, including temperature and pollution such as fertilizer runoff.

Biodiversity loss, environmental degradation and severe impacts on ecosystem services — which refer to nature's support of wildlife habitat, crop pollination, soil health and other benefits — have not only accompanied conventional farming systems, but have often extended well beyond the boundaries of their fields, such as fertilizer runoff into rivers.

While these dead zones are often caused by fertilizer runoff currently, it seems the decreasing ability of the oceans to hold dissolved oxygen with continued warming will increasingly become a problem for marine ecosystems and fisheries in the coming decades.

What's good for Accabonac Harbor, which is getting loaded with a lot of septic waste, may not be good for Georgica, which may be getting a lot of lawn fertilizer runoff from mansions,» he said.

Now fertilizer runoff from fields and lawns and excrement from pig and chicken farms are causing the plants to proliferate.

Meanwhile, the gigantic 400 - hectare farms of Salinas lie adjacent to the north, meaning fertilizer runoff and sewage flow daily into the Monterey Bay.

Julia reasoned that duckweed might soak up some of phosphorus from fertilizer runoff before it reached the algae.

Conventional: Fertilizer runoff pollutes coastal areas and can strip water of oxygen, spur algae growth, and kill marine life.

Among their many activities, the Techbridge girls at John Swett wrote and produced an educational video on the phases of the moon, launched a campaign to educate the community about the harmful effects of motor oil and lawn fertilizer runoff seeping into San Francisco Bay, and studied the effect of ultraviolet light on plant growth.

«The dead zone in the Gulf of Mexico persists due to continued fertilizer runoff and animal waste from increased livestock production,» said Ms. Naylor, a professor of environmental Earth system science and senior fellow at Stanford's Woods Institute and Freeman Spogli Institute for International Studies.

Even in Europe, with its strong research programs on nutrient balances and stringent policies for reducing fertilizer runoff, nitrogen pollution remains substantial.

When agricultural subsidies from the Soviet Union collapsed in the late 1980s, fertilizer runoff dropped by more than 50 percent.

Algal blooms occur naturally, but pollution sources like fertilizer runoff and animal agriculture has knocked natural nutrient cycling out of balance.

Paul Driessen explains the damage done to the Gulf of Mexico from nitrogen fertilizer runoff that flows down the Mississippi and creates massive dead zones (no oxygen) that kill marine life.

One of the benefits of constructing these artificial wetlands was thought to be in cleaning and filtering polluted water, including mitigating the effects of excess fertilizer runoff, which has been contributing to hypoxic zones in the ocean.

Controlling fertilizer runoff into the Chesapeake Bay is paying off.

The Nature paper suggests that microscopic plant growth in coastal areas, fueled by fertilizer runoff, is now leading to greater uptake of CO2.

Concentrations of algae in our oceans and lakes have long bloomed naturally, but climate change and fertilizer runoff from farms have exacerbated the situation in recent years.

When combined with overfishing, climate change, fertilizer runoff — induced dead zones and other human impacts on ocean fishes, a watery evolutionary stage has been set for a jellyfish takeover — dubbed the «gelatinous ocean» by some scientists.

Unlike other types of algae, didymo does not thrive with high levels of phosphorus or nutrients from fertilizer runoff, but it does prefer higher amounts of relative nitrogen.

For example, in midwestern agricultural areas, potassium levels rose fastest, likely from fertilizer runoff, whereas salt numbers swelled most rapidly in the densely populated and humid Northeast.

Fertilizer runoff and fossil - fuel use lead to massive areas in the ocean with scant or no oxygen, killing large swaths of sea life and causing hundreds of millions of dollars in damage

In fact, phosphorus from domestic sewage, in addition to fertilizer runoff, has traditionally been a nuisance, because it triggers blooms of algae that deplete local waters of oxygen.

This means added challenges for improving water quality in some Cape Cod and southeastern Mass. watersheds that are already suffering from too much nitrogen, which is most commonly caused by releases from septic systems and wastewater treatment plants, atmospheric pollution, and fertilizer runoff.

Turf managers are under increasing pressure to limit irrigation, pesticide and fertilizer runoff, and mower emissions.

High levels of these nutrients are typically present in stormwater in part because of fertilizer runoff.

For example, the Bioenergy Technologies Office has helped a company develop a process for making commercial airliner biofuel (now being tested by Boeing), and it sponsored research by public university scientists investigating how a bioenergy crop can help prevent water contamination from fertilizer runoff.

While there may have been some merit to that primary intention, the secondary effects — increasing dead zones in the oceans due to fertilizer runoff, and rising food prices due to the use of food crops as fuel — eliminated the overall benefit of the effort, and even created a net negative outcome.

Pesticide and fertilizer runoff from the vast expanses of corn in the U.S. prairies bleed into groundwater and rivers as far as the Gulf of Mexico.

No area of the world's ocean is unaffected by human influence, as the accumulation of carbon, fertilizer runoff, and overfishing undermine biodiversity and the natural services that it provides.

Fertilizer runoff from the U.S. Corn Belt, for example, contributes heavily to an annual oxygen - starved «dead zone» in the Gulf of Mexico — an area where sea life can not exist, which in some years grows to the size of New Jersey.

These hypoxic areas — virtually uninhabitable for most marine life — are a result of eutrophication, or too many nutrients from fertilizer runoff and sewage discharges finding their way into coastal waters.

Manure and fertilizer runoff is harming communities across the country.