Development of new indicators for improved climate characterization of bioplastics: going beyond tipping the Arctic summer sea-ice

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

    Abstract

    Bioplastics are often considered as environmentally sustainable solutions to mitigate climate change. Climate performance of bioplastics is traditionally assessed using Global Warming Potential (GWP) as indicator. Although credits can be given for temporary carbon storage in biomaterial, GWP does not consider the contribution of greenhouse gas (GHG) emissions to crossing of climatic tipping points, that is, levels of pressure on the climate system beyond which adverse and potentially irreversible changes may occur. Accounting for timing of GHG emissions is particularly relevant for some biodegradable materials made from biopolymers, which can degrade relatively quickly in the environment. Here, building on
    recently developed Climate Tipping Potential (CTP) indicator, which quantifies impacts in relation to tipping the Arctic summer sea ice, a new indicator is proposed, which: (i) includes melting of Greenland icesheet as tipping element, and (ii) includes the contribution of tipping the Arctic summer sea ice to melting of the Greenland ice-sheet due to albedo changes. The new indicator was applied in practice to temporarily disaggregated CO2 emission inventories representing a wide range of bioplastics mineralization rate constants. For biodegradable bioplastics, it was found that total climate tipping impact caused by temporal evolution of CO2 from mineralization of bioplastic is dominated by contribution of CO
    2 emissions to tipping the Arctic summer sea ice rather than tipping the Greenland ice-sheet. The latter may become important, however, for those bioplastics that degrade relatively slowly in the environment. These findings highlight the need
    for considering timing of emissions as determined by biodegradability of the biopolymer in the environment, when characterizing climate-tipping performance of bioplastics.
    Original languageEnglish
    Publication date2018
    Publication statusPublished - 2018
    EventSETAC Europe 24th LCA Symposium - Vienna, Austria
    Duration: 24 Sep 201826 Sep 2018

    Conference

    ConferenceSETAC Europe 24th LCA Symposium
    CountryAustria
    CityVienna
    Period24/09/201826/09/2018

    Cite this

    @conference{06d1c28529d746fabb5663c882c77a29,
    title = "Development of new indicators for improved climate characterization of bioplastics: going beyond tipping the Arctic summer sea-ice",
    abstract = "Bioplastics are often considered as environmentally sustainable solutions to mitigate climate change. Climate performance of bioplastics is traditionally assessed using Global Warming Potential (GWP) as indicator. Although credits can be given for temporary carbon storage in biomaterial, GWP does not consider the contribution of greenhouse gas (GHG) emissions to crossing of climatic tipping points, that is, levels of pressure on the climate system beyond which adverse and potentially irreversible changes may occur. Accounting for timing of GHG emissions is particularly relevant for some biodegradable materials made from biopolymers, which can degrade relatively quickly in the environment. Here, building onrecently developed Climate Tipping Potential (CTP) indicator, which quantifies impacts in relation to tipping the Arctic summer sea ice, a new indicator is proposed, which: (i) includes melting of Greenland icesheet as tipping element, and (ii) includes the contribution of tipping the Arctic summer sea ice to melting of the Greenland ice-sheet due to albedo changes. The new indicator was applied in practice to temporarily disaggregated CO2 emission inventories representing a wide range of bioplastics mineralization rate constants. For biodegradable bioplastics, it was found that total climate tipping impact caused by temporal evolution of CO2 from mineralization of bioplastic is dominated by contribution of CO2 emissions to tipping the Arctic summer sea ice rather than tipping the Greenland ice-sheet. The latter may become important, however, for those bioplastics that degrade relatively slowly in the environment. These findings highlight the needfor considering timing of emissions as determined by biodegradability of the biopolymer in the environment, when characterizing climate-tipping performance of bioplastics.",
    author = "Serena Fabbri and Mikolaj Owsianiak",
    year = "2018",
    language = "English",
    note = "SETAC Europe 24th LCA Symposium ; Conference date: 24-09-2018 Through 26-09-2018",

    }

    Development of new indicators for improved climate characterization of bioplastics: going beyond tipping the Arctic summer sea-ice. / Fabbri, Serena; Owsianiak, Mikolaj.

    2018. Abstract from SETAC Europe 24th LCA Symposium, Vienna, Austria.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

    TY - ABST

    T1 - Development of new indicators for improved climate characterization of bioplastics: going beyond tipping the Arctic summer sea-ice

    AU - Fabbri, Serena

    AU - Owsianiak, Mikolaj

    PY - 2018

    Y1 - 2018

    N2 - Bioplastics are often considered as environmentally sustainable solutions to mitigate climate change. Climate performance of bioplastics is traditionally assessed using Global Warming Potential (GWP) as indicator. Although credits can be given for temporary carbon storage in biomaterial, GWP does not consider the contribution of greenhouse gas (GHG) emissions to crossing of climatic tipping points, that is, levels of pressure on the climate system beyond which adverse and potentially irreversible changes may occur. Accounting for timing of GHG emissions is particularly relevant for some biodegradable materials made from biopolymers, which can degrade relatively quickly in the environment. Here, building onrecently developed Climate Tipping Potential (CTP) indicator, which quantifies impacts in relation to tipping the Arctic summer sea ice, a new indicator is proposed, which: (i) includes melting of Greenland icesheet as tipping element, and (ii) includes the contribution of tipping the Arctic summer sea ice to melting of the Greenland ice-sheet due to albedo changes. The new indicator was applied in practice to temporarily disaggregated CO2 emission inventories representing a wide range of bioplastics mineralization rate constants. For biodegradable bioplastics, it was found that total climate tipping impact caused by temporal evolution of CO2 from mineralization of bioplastic is dominated by contribution of CO2 emissions to tipping the Arctic summer sea ice rather than tipping the Greenland ice-sheet. The latter may become important, however, for those bioplastics that degrade relatively slowly in the environment. These findings highlight the needfor considering timing of emissions as determined by biodegradability of the biopolymer in the environment, when characterizing climate-tipping performance of bioplastics.

    AB - Bioplastics are often considered as environmentally sustainable solutions to mitigate climate change. Climate performance of bioplastics is traditionally assessed using Global Warming Potential (GWP) as indicator. Although credits can be given for temporary carbon storage in biomaterial, GWP does not consider the contribution of greenhouse gas (GHG) emissions to crossing of climatic tipping points, that is, levels of pressure on the climate system beyond which adverse and potentially irreversible changes may occur. Accounting for timing of GHG emissions is particularly relevant for some biodegradable materials made from biopolymers, which can degrade relatively quickly in the environment. Here, building onrecently developed Climate Tipping Potential (CTP) indicator, which quantifies impacts in relation to tipping the Arctic summer sea ice, a new indicator is proposed, which: (i) includes melting of Greenland icesheet as tipping element, and (ii) includes the contribution of tipping the Arctic summer sea ice to melting of the Greenland ice-sheet due to albedo changes. The new indicator was applied in practice to temporarily disaggregated CO2 emission inventories representing a wide range of bioplastics mineralization rate constants. For biodegradable bioplastics, it was found that total climate tipping impact caused by temporal evolution of CO2 from mineralization of bioplastic is dominated by contribution of CO2 emissions to tipping the Arctic summer sea ice rather than tipping the Greenland ice-sheet. The latter may become important, however, for those bioplastics that degrade relatively slowly in the environment. These findings highlight the needfor considering timing of emissions as determined by biodegradability of the biopolymer in the environment, when characterizing climate-tipping performance of bioplastics.

    M3 - Conference abstract for conference

    ER -