Sentences with phrase «oxide emissions far»

The team discovered that the human impact on biogenic methane and nitrous oxide emissions far outweighed the human impact on the terrestrial uptake of carbon dioxide, meaning that humans have caused the terrestrial biosphere to further contribute to warming.

Not exact matches

«Indirect» emissions often refer to gases released far from the source, like nitrous oxide that is emitted downstream from the fertilizer from which it originates.

Heavy - duty vehicles, such as commercial trucks and buses, were found to be, by far, the largest contributor of emissions, accounting for 76 percent of the total excess nitrogen oxide emissions.

When spring thaw emissions were combined with growing season emissions, the conventional tillage system actually had higher total nitrous oxide emissions than the zero till system.We suggest that this type of experiment (full year emission measurements) be repeated with deep banding of N fertilizer, which would be expected to further reduce emissions from zero till systems.

This review would include determining how these nitrous oxide emissions from zero tillage systems compared with those from conventional tillage, and identifing gaps in knowledge requiring further experiments and studies.

The traffic - related nitrogen oxide emissions in the Federal Republic of Germany have fallen sharply since the introduction of the emission limitation for road traffic in 1960 up until today and a further reduction by a total of 86 % in maximum emissions is expected in the future as well [58].

95 The case for crop - based biofuels was further undermined when a team led by Paul Crutzen, a Nobel Prize — winning chemist at the Max Planck Institute for Chemistry in Germany, concluded that emissions of nitrous oxide, a potent greenhouse gas, from the synthetic nitrogen fertilizer used to grow crops such as corn and rapeseed for biofuel production can negate any net reductions of CO2 emissions from replacing fossil fuels with biofuels, thus making biofuels a threat to climate stability.

State Agencies Must Purchase or Lease Vehicles That Use Alternative Fuels Louisiana's Advanced Biofuel Industry Development Initiative further states, «The commissioner of administration shall not purchase or lease any motor vehicle for use by any state agency unless that vehicle is capable of and equipped for using an alternative fuel that results in lower emissions of oxides of nitrogen, volatile organic compounds, carbon monoxide, or particulates or any combination thereof that meet or exceed federal Clean Air Act standards.»