skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Increasing anthropogenic methane emissions arise equally from agricultural and fossil fuel sources

Environmental research letters, 2020-07, Vol.15 (7), p.71002 [Peer Reviewed Journal]

2020 The Author(s). Published by IOP Publishing Ltd ;Copyright Determination: MAY_INCLUDE_COPYRIGHT_MATERIAL ;Copyright IOP Publishing Jul 2020 ;Attribution ;ISSN: 1748-9326 ;EISSN: 1748-9326 ;DOI: 10.1088/1748-9326/ab9ed2 ;CODEN: ERLNAL

Full text available

Citations Cited by
  • Title:
    Increasing anthropogenic methane emissions arise equally from agricultural and fossil fuel sources
  • Author: Jackson, R B ; Saunois, M ; Bousquet, P ; Canadell, J G ; Poulter, B ; Stavert, A R ; Bergamaschi, P ; Niwa, Y ; Segers, A ; Tsuruta, A
  • Subjects: Anthropogenic factors ; Earth Resources And Remote Sensing ; Fossil fuels ; Sciences of the Universe
  • Is Part Of: Environmental research letters, 2020-07, Vol.15 (7), p.71002
  • Description: Climate stabilization remains elusive, with increased greenhouse gas concentrations already increasing global average surface temperatures 1.1°C above pre-industrial levels (World Meteorological Organization 2019). Carbon dioxide (CO2) emissions from fossil fuel use, deforestation, and other anthropogenic sources reached ~ 43 billion metric tonnes in 2019 (Friedlingstein et al 2019, Jackson et al 2019). Storms, floods, and other extreme weather events displaced a record 7 million people in the first half of 2019 (IDMC 2019). When global mean surface temperature four million years ago was 2°C–3°C warmer than today (a likely temperature increase before the end of the century), ice sheets in Greenland and West Antarctica melted and parts of East Antarctica’s ice retreated, causing sea levels to rise 10–20 m (World Meteorological Organization 2019). Methane (CH4) emissions have contributed almost one quarter of the cumulative radiative forcings for CO2, CH4, and N2O (nitrous oxide) combined since 1750 (Etminan et al 2016). Although methane is far less abundant in the atmosphere than CO2, it absorbs thermal infrared radiation much more efficiently and, in consequence, has a global warming potential (GWP) ~86 times stronger per unit mass than CO2 on a 20-year timescale and 28- times more powerful on a 100-year time scale (IPCC 2014). Global average methane concentrations in the atmosphere reached ~1875 parts per billion (ppb) at the end of 2019, more than two-and-a-half times preindustrial levels (Dlugokencky 2020). The largest methane sources include anthropogenic emissions from agriculture, waste, and the extraction and use of fossil fuels as well as natural emissions from wetlands, freshwater systems, and geological sources (Kirschke et al 2013, Saunois et al 2016a, Ganesan et al 2019). Here, we summarize new estimates of the global methane budget based on the analysis of Saunois et al (2020) for the year 2017, the last year of the new Global Methane Budget and the most recent year data are fully available. We compare these estimates to mean values for the reference ‘stabilization’ period of 2000–2006 when atmospheric CH4 concentrations were relatively stable. We present data for sources and sinks and provide insights for the geographical regions and economic sectors where emissions have changed the most over recent decades.
  • Publisher: Goddard Space Flight Center: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1748-9326
    EISSN: 1748-9326
    DOI: 10.1088/1748-9326/ab9ed2
    CODEN: ERLNAL
  • Source: IOP Publishing Free Content
    NASA Technical Reports Server
    IOPscience (Open Access)
    Hyper Article en Ligne (HAL) (Open Access)
    GFMER Free Medical Journals
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait