Long-term tillage, rotation and perennialization effects on particulate and aggregate soil organic

This study investigates how management varying in crop rotation, tillage intensity and organic management from 1990 to 2013 has affected particulate organic matter and aggregate carbon and nitrogen, and assess the relationship between these soil organic matter fractions and biomass carbon input


Cates AM, Ruark MD, Hedtcke JL, and Posner JL
Soil and Tillage Research 2016 Journal Article

Comparison of process-based models to quantify nutrient flows and greenhouse gas emissions associate

This study uses a whole-farm mass-balance approach to compare five process-based models in terms of predicted carbon, nitrogen and phosphorus flows and potential global warming impact


Veltman K. Jones CD, Gaillard R, Cela S, et al.
Agriculture, Ecosystems and Environment 2017 Journal Article

Greenhouse Gas Equivalencies Calculator

Did you ever wonder what reducing carbon dioxide (CO2) emissions by 1 million metric tons means in everyday terms? The greenhouse gas equivalencies calculator can help you understand just that, translating abstract measurements into concrete terms you can understand, such as the annual emissions from cars, households, or power plants. This calculator may be useful in communicating your greenhouse gas reduction strategy, reduction targets, or other initiatives aimed at reducing greenhouse gas emissions.


EPA 2008 Web Page

Carbon and water footprint of U.S. milk, from farm to table

The Innovation Center for U.S. Dairy with support from the Dairy Research Institute has begun a rigorous, innovative, life cycle assessment-based program to study and reduce the environmental footprint of the U.S. dairy industry.


Miller, G.D. and Y. Wang
International Dairy Journal 2013 Journal Article

Apparent Stability and Subtle Change in Surface and Subsurface Soil Carbon and Nitrogen under a Long Surface and Subsurface Soil Carbon and Nitrogen under a Long-Term Fertilizer Gradient

Uncertainty exists regarding the depth and extent to which agricultural practices affect soil properties, in particular soil organic C (SOC). In this study we examined the impact of 53 years of continuous corn receiving varying rates of inorganic N fertilizer with complete stover return on soil properties including SOC, total N, and bulk density (BD) to a depth of 1 meter.


Collier, SM, Ruark MD, Naber MR, Andraski TW et al.
Soil Sci. Soc. Am. J. 2017 Journal Article

Carbon footprint of milk production LCA method used to compare carbon footprints of high-performance confinement and grass-based dairy farms.

A case study of the carbon footprint of milk from high-performing confinement and grass-based dairy farms.


O'Brien, et. al.
J. Dairy Sci. 2014 Publication

Integrated life-cycle assessment of electricity-supply scenarios

Integrated life-cycle assessment of electricity-supply scenarios confirms global environmental benefit of low-carbon technologies


Hertwich et. al.
2014 Publication

Tillage No-tillage impacts on soil carbon, nitrogen, and water

Describes the advantages and disadvantages of tillage (including N loss)


Dick
Iowa State USA / IA 2012 Fact Sheet