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Showing 1–6 of 6 results
Advanced filters: Author: Ray L. Langenfelds Clear advanced filters

  • There is a widespread assumption that changes in reported anthropogenic global CO2 emissions are indicative of changes in climate and ocean chemistry. However, examination of atmospheric CO2 measurements from the past two decades challenges this idea. A new study develops and advocates use of CO2 measurement practices that reduce uncertainty in atmospheric verification of emissions, and identifies modelling inadequacies.

    • Roger J. Francey
    • Cathy M. Trudinger
    • Christian Rödenbeck
    Research
    Nature Climate Change
    Volume: 3, P: 520-524

  • Levels of five chlorofluorocarbons rose in the atmosphere from 2010 to 2020 despite their production being banned by the Montreal Protocol, probably arising as by-products of hydrofluorocarbon production, according to analysis of abundance and emissions data.

    • Luke M. Western
    • Martin K. Vollmer
    • Johannes C. Laube
    Research
    Nature Geoscience
    Volume: 16, P: 309-313

  • 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