Review

Net-zero emissions energy systems

See allHide authors and affiliations

Science  29 Jun 2018:
Vol. 360, Issue 6396, eaas9793
DOI: 10.1126/science.aas9793

Path to zero carbon emissions

Models show that to avert dangerous levels of climate change, global carbon dioxide emissions must fall to zero later this century. Most of these emissions arise from energy use. Davis et al. review what it would take to achieve decarbonization of the energy system. Some parts of the energy system are particularly difficult to decarbonize, including aviation, long-distance transport, steel and cement production, and provision of a reliable electricity supply. Current technologies and pathways show promise, but integration of now-discrete energy sectors and industrial processes is vital to achieve minimal emissions.

Science, this issue p. eaas9793