Angelo C. Gurgel's profile photo

Angelo C. Gurgel

United States

Articles

  • 3 weeks ago | agupubs.onlinelibrary.wiley.com | Angelo C. Gurgel |Kanishka Narayan |John Reilly |Xiang Gao

    1 Introduction Climate change, income distribution, population growth, and altering diets are major drivers of the global food system with implications for land use change at global, regional and local scales (Alexandratos & Bruinsma, 2012; Hertel, 2011; Nelson et al., 2014; Springman et al., 2018). As a consequence land use in any particular region will be affected directly by local and regional forces and indirectly through international trade.

  • May 10, 2024 | nature.com | Bryan K. Mignone |Leon E. Clarke |James A. Edmonds |Angelo C. Gurgel |Howard J. Herzog |Jeremiah Johnson | +8 more

    Energy transition scenarios are characterized by increasing electrification and improving efficiency of energy end uses, rapid decarbonization of the electric power sector, and deployment of carbon dioxide removal (CDR) technologies to offset remaining emissions. Although hydrocarbon fuels typically decline in such scenarios, significant volumes remain in many scenarios even at the time of net-zero emissions. While scenarios rely on different approaches for decarbonizing remaining fuels, the underlying drivers for these differences are unclear. Here we develop several illustrative net-zero systems in a simple structural energy model and show that, for a given set of final energy demands, assumptions about the use of biomass and CO2 sequestration drive key differences in how emissions from remaining fuels are mitigated. Limiting one resource may increase reliance on another, implying that decisions about using or restricting resources in pursuit of net-zero objectives could have significant tradeoffs that will need to be evaluated and managed. Assumptions about the use of biomass and CO2 sequestration drive key differences in how emissions from remaining fuels are mitigated in net-zero energy systems, with potentially significant tradeoffs that will need to be evaluated and managed.

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