Navigation Links
Fertilizer use responsible for increase in nitrous oxide in atmosphere
Date:4/2/2012

University of California, Berkeley, chemists have found a smoking gun proving that increased fertilizer use over the past 50 years is responsible for a dramatic rise in atmospheric nitrous oxide, which is a major greenhouse gas contributing to global climate change.

Climate scientists have assumed that the cause of the increased nitrous oxide was nitrogen-based fertilizer, which stimulates microbes in the soil to convert nitrogen to nitrous oxide at a faster rate than normal.

The new study, reported in the April issue of the journal Nature Geoscience, uses nitrogen isotope data to identify the unmistakable fingerprint of fertilizer use in archived air samples from Antarctica and Tasmania.

"Our study is the first to show empirically from the data at hand alone that the nitrogen isotope ratio in the atmosphere and how it has changed over time is a fingerprint of fertilizer use," said study leader Kristie Boering, a UC Berkeley professor of chemistry and of earth and planetary science.

"We are not vilifying fertilizer. We can't just stop using fertilizer," she added. "But we hope this study will contribute to changes in fertilizer use and agricultural practices that will help to mitigate the release of nitrous oxide into the atmosphere."

Since the year 1750, nitrous oxide levels have risen 20 percent from below 270 parts per billion (ppb) to more than 320 ppb. After carbon dioxide and methane, nitrous oxide (N2O) is the most potent greenhouse gas, trapping heat and contributing to global warming. It also destroys stratospheric ozone, which protects the planet from harmful ultraviolet rays.

Not surprisingly, a steep ramp-up in atmospheric nitrous oxide coincided with the green revolution that increased dramatically in the 1960s, when inexpensive, synthetic fertilizer and other developments boosted food production worldwide, feeding a burgeoning global population.

Tracking the origin of nitrous
'/>"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. National Science Foundation supports research aimed at reducing the use of fertilizer
2. Nitrogen fertilizers impact on lawn soils
3. 400,000 farmers in southern Africa using fertilizer trees to improve food security
4. Chicken litter provides organic alternative to synthetic fertilizers
5. High nitrogen fertilizers tested on post-transplant ornamentals
6. Charcoal biofilter cleans up fertilizer waste gases
7. Fertilizer chemicals linked to animal developmental woes
8. Discovery in legumes could reduce fertilizer use, aid environment: Stanford researchers
9. Fertilizer use not always helpful in revegetation efforts
10. Sustainable fertilizer: Urine and wood ash produce large harvest
11. Water quality improves after lawn fertilizer ban, study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... regulations over the last decade in Taiyuan, China, have ... for a greater than 50% reduction in costs associated ... 2010, according to researchers at the Columbia Center for ... Public Health, the Shanxi Medical University, the Center of ... Fudan University School of Public Health. , The study ...
(Date:9/2/2014)... take stress in stride; others are done in by ... molecular mechanisms of this so-called stress gap in mice ... could lead researchers to better understand the development of ... people, each animal has unique experiences as it goes ... experiences can alter the expression of genes, and as ...
(Date:9/1/2014)... Conventional wisdom has long held that corals ... reefs are passive organisms that rely entirely ... as nutrients and oxygen. But now scientists at ... in Israel have found that they are far ... into turbulent patterns that greatly enhance their ability ...
Breaking Biology News(10 mins):Clean air halves health costs in Chinese city 2Discovery hints at why stress is more devastating for some 2Discovery hints at why stress is more devastating for some 3Nature's tiny engineers 2Nature's tiny engineers 3
... at the U.S. Department of Energy,s (DOE) Brookhaven National Laboratory ... of carbon can be used to image aromatase, an enzyme ... The research, published in the November issue of Synapse ... aromatase is concentrated may be unique to humans. "The ...
... crisis in a similar way to plants and the human ... to predict future financial down-turns. An extensive analysis of ... similar symptoms, whether they be polluted forests, cancer patients or ... the way that humans, animals and plants adapt to harsh ...
... now dominate the field of veterinary medicine the result ... itself in the fields of medicine and law. That,s ... that appear to be driving the change: the 1972 federal ... graduate schools who may be deterred by a growing number ...
Cached Biology News:PET scans reveal estrogen-producing hotspots in human brain 2Plants and animals under stress may provide the key to better stock market predictions 2Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 2Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 3Vet med's big shift to more women, fewer men driven by falling barriers, more female grads 4
(Date:9/1/2014)... YORK , Sept. 1, 2014 ... is available in its catalogue: India ... 2019 http://www.reportlinker.com/p02350445/India-Solid-Waste-Management-Vehicles-Market-Forecast-and-Opportunities-2019.html ... corporations are the main governing bodies responsible for ... in cities. On an average, around 135,000 MT ...
(Date:8/31/2014)... September 01, 2014 Available spectra ... needs for research and cultivation of a wide ... Valoya’s proprietary LEDs with proven patented and pending ... uncompromised light uniformity in critical applications in contrast ... LEDs. , “Our customers have a large variety ...
(Date:8/29/2014)... DIEGO, Aug. 29, 2014  Pfenex Inc. (NYSE ... the development of high-value and difficult to manufacture ... update and reported financial results for the second ... the successful completion of our initial public offering, ... our biosimilar product candidates, derived from our proprietary ...
(Date:8/29/2014)... Pittcon is pleased to announce that the 2015 ... Scientific, have organized a session on nanotechnology for presentation ... Asia’s largest analytical and scientific instruments show, will be ... , The four speakers in this U.S. symposium, “Thinking ... Single Cells” will present their use of nanotechnology to ...
Breaking Biology Technology:India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 2India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 3India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 4India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 5India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 6India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 7India Solid Waste Management Vehicles Market Forecast and Opportunities, 2019 8Pfenex Reports Second Quarter 2014 Results and Provides Business Update 2Pfenex Reports Second Quarter 2014 Results and Provides Business Update 3Pfenex Reports Second Quarter 2014 Results and Provides Business Update 4Pfenex Reports Second Quarter 2014 Results and Provides Business Update 5Pfenex Reports Second Quarter 2014 Results and Provides Business Update 6Pfenex Reports Second Quarter 2014 Results and Provides Business Update 7Pfenex Reports Second Quarter 2014 Results and Provides Business Update 8Fifth Annual U.S. Symposium at JASIS Organized by Pittcon’s Program Chairman Hub MacDonald 2
... Multiporator , , , , , , , ... Protocol No. 4308 915.040 11/2000 , , , , ... , Cell line , U-266, human myeloma, ... Plasmid pEGFP-C1 (in bidistilled H 2 O), , ...
... , , , , , , ... , , , , , , , ... Cell line , T98G, human glioblastoma, , ... (in bidistilled H 2 O), , , ...
... , , , , , , , Multiporator / Electroporator 2510 , ... , Transformation Protocol , Protocol ... , , , , , ... , , Cell type , ...
Cached Biology Technology:U-266 2T98G 2Staphylococcus epidermidis 2
... EKMax™ is a recombinant preparation of ... EKMax™ Enterokinase is expressed and isolated from ... highly purified enzyme preparation (2). It recognizes ... bond after the lysine residue. The enzyme ...
... are cytopathic effect inhibition assays, also known as ... tissue culture supernatents; serum from PK studies and ... is defined as the quantity of interferon required ... viral infection by 50%. All standards ...
...
...
Biology Products: