Abstract The scientific evidence assembled in this Focus Collection on ‘Reactive nitrogen and the UN sustainable development goals’ emphasizes relevance of agriculture as a key sector for application well its release to environment observed impacts. Published work proves multiple connections their causality, presents pathways mitigate negative effects while maintaining benefits, foremost produc...

The pure elements Ti, Zr, Cr, Nb were selected to produce an TiCrZrNb alloy target and deposited thin films thereof by a reactive high vacuum DC sputtering process. Nitrogen was used as the reactive gas to deposit the nitride thin films. The effect of nitriding on the properties of the TiCrZrNbNx film was tested by changing the nitrogen ratio of the atmosphere. All of the as-deposited TiCrZrNbN...

Livestock production for human consumption is growing dramatically as developing nations increasingly eat meat. But the production of such animals adds to greenhouse gas emissions and takes up biomass production that could otherwise enter the human food chain directly. have calculated the possible impacts of livestock production between 2000 and 2050 in a new report in the Proceedings of the Na...

We present in this study both measurement-based and modeling analyses for elucidation of source attribution, influence areas, and process budget of reactive nitrogen oxides at two rural southeast United States sites (Great Smoky Mountains national park (GRSM) and Mammoth Cave national park (MACA)). Availability of nitrogen oxides is considered as the limiting factor to ozone production in these...