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Showing 1–10 of 10 results
Advanced filters: Author: D. L. Bruhwiler Clear advanced filters

  • How much methane will be emitted from the boreal-Arctic region under climate change is not well constrained. Here the authors show that accounting for distinct wetland and lake classes leads to lower estimates of current methane loss as some classes emit low amounts of methane.

    • McKenzie Kuhn
    • David Olefeldt
    • Zhen Zhang
    Research
    Nature Climate Change
    Volume: 15, P: 986-991

  • The net balance of terrestrial biogenic greenhouse gases produced as a result of human activities and the climatic impact of this balance are uncertain; here the net cumulative impact of the three greenhouse gases, methane, nitrous oxide and carbon dioxide, on the planetary energy budget from 2001 to 2010 is a warming of the planet.

    • Hanqin Tian
    • Chaoqun Lu
    • Steven C. Wofsy
    Research
    Nature
    Volume: 531, P: 225-228

  • Controlling and improving electron beam parameters are crucial for their application in free electron laser and X-ray sources. Here the authors generate quality electron beams with reduced energy spread from plasma accelerators by using a tailored escort electron bunch with the main accelerating bunch.

    • G. G. Manahan
    • A. F. Habib
    • B. Hidding
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-9

  • Chinese government has implemented regulations to reduce mining-related methane emission since 2010. Here the authors estimated methane emissions in China using GOSAT satellite observation and results reveal a business-as-usual increase in methane emissions since 2010 despite those ambitious targets.

    • Scot M. Miller
    • Anna M. Michalak
    • Stefan Schwietzke
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • Models overestimate Arctic methane emissions compared to observations. Incorporating microbial dynamics into biogeochemistry models helps reconcile this discrepancy; high-affinity methanotrophs are an important part of the Arctic methane budget and double previous estimates of methane sinks.

    • Youmi Oh
    • Qianlai Zhuang
    • Bo Elberling
    Research
    Nature Climate Change
    Volume: 10, P: 317-321

  • Methane is an important greenhouse gas, responsible for about 20% of the warming induced by long-lived greenhouse gases since pre-industrial times. A compilation of observations and results from chemical transport, ecosystem and climate chemistry models suggests that a rise in wetland and fossil fuel emissions probably accounts for the renewed increase in global methane levels after 2006.

    • Stefanie Kirschke
    • Philippe Bousquet
    • Guang Zeng
    Reviews
    Nature Geoscience
    Volume: 6, P: 813-823

  • Electron bunches are generated and accelerated to relativistic velocities by tunnel ionization of neutral gas species in a plasma. This represents a step towards ultra-bright, high-emittance beams in plasma wakefield accelerators. [This summary has been amended from ‘laser-plasma’ to ‘plasma wakefield’ accelerators.]

    • A. Deng
    • O. S. Karger
    • B. Hidding
    Research
    Nature Physics
    Volume: 15, P: 1156-1160

  • A process-based carbon isotope biogeochemistry model substantially reduces uncertainty in regional and global estimates of the stable carbon isotopic composition of methane emissions from wetlands and suggests rising atmospheric concentrations are due to increased microbial emissions.

    • Youmi Oh
    • Qianlai Zhuang
    • Jeffrey P. Chanton
    ResearchOpen Access
    Communications Earth & Environment
    Volume: 3, P: 1-12