TY  - JOUR
A1  - Riahi, Keywan
A1  - Bertram, Christoph
A1  - Huppmann, Daniel
A1  - Rogelj, Joeri
A1  - Bosetti, Valentina
A1  - Cabardos, Anique-Marie
A1  - Deppermann, Andre
A1  - Drouet, Laurent
A1  - Frank, Stefan
A1  - Fricko, Oliver
A1  - Fujimori, Shinichiro
A1  - Harmsen, Mathijs
A1  - Hasegawa, Tomoko
A1  - Krey, Volker
A1  - Luderer, Gunnar
A1  - Paroussos, Leonidas
A1  - Schaeffer, Roberto
A1  - Weitzel, Matthias
A1  - van der Zwaan, Bob
A1  - Vrontisi, Zoi
A1  - Longa, Francesco Dalla
A1  - Després, Jacques
A1  - Fosse, Florian
A1  - Fragkiadakis, Kostas
A1  - Gusti, Mykola
A1  - Humpenöder, Florian
A1  - Keramidas, Kimon
A1  - Kishimoto, Paul
A1  - Kriegler, Elmar
A1  - Meinshausen, Malte
A1  - Nogueira, Larissa Pupo
A1  - Oshiro, Ken
A1  - Popp, Alexander
A1  - Rochedo, Pedro R. R.
A1  - Ünlü, Gamze
A1  - van Ruijven, Bas
A1  - Takakura, Junya
A1  - Tavoni, Massimo
A1  - van Vuuren, Detlef P.
A1  - Zakeri, Behnam
T1  - Cost and attainability of meeting stringent climate targets without overshoot
JF  - Nature climate change
N2  - Global emissions scenarios play a critical role in the assessment of strategies to mitigate climate change. The current scenarios, however, are criticized because they feature strategies with pronounced overshoot of the global temperature goal, requiring a long-term repair phase to draw temperatures down again through net-negative emissions. Some impacts might not be reversible. Hence, we explore a new set of net-zero CO2 emissions scenarios with limited overshoot. We show that upfront investments are needed in the near term for limiting temperature overshoot but that these would bring long-term economic gains. Our study further identifies alternative configurations of net-zero CO2 emissions systems and the roles of different sectors and regions for balancing sources and sinks. Even without net-negative emissions, CO2 removal is important for accelerating near-term reductions and for providing an anthropogenic sink that can offset the residual emissions in sectors that are hard to abate.
Y1  - 2021
U6  - https://doi.org/10.1038/s41558-021-01215-2
SN  - 1758-678X
SN  - 1758-6798
VL  - 11
IS  - 12
SP  - 1063
EP  - 1069
PB  - Nature Publishing Group
CY  - London
ER  - 
TY  - JOUR
A1  - van Soest, Heleen L.
A1  - Aleluia Reis, Lara
A1  - Baptista, Luiz Bernardo
A1  - Bertram, Christoph
A1  - Després, Jacques
A1  - Drouet, Laurent
A1  - den Elzen, Michel
A1  - Fragkos, Panagiotis
A1  - Fricko, Oliver
A1  - Fujimori, Shinichiro
A1  - Grant, Neil
A1  - Harmsen, Mathijs
A1  - Iyer, Gokul
A1  - Keramidas, Kimon
A1  - Köberle, Alexandre C.
A1  - Kriegler, Elmar
A1  - Malik, Aman
A1  - Mittal, Shivika
A1  - Oshiro, Ken
A1  - Riahi, Keywan
A1  - Roelfsema, Mark
A1  - van Ruijven, Bas
A1  - Schaeffer, Roberto
A1  - Silva Herran, Diego
A1  - Tavoni, Massimo
A1  - Ünlü, Gamze
A1  - Vandyck, Toon
A1  - van Vuuren, Detlef P.
T1  - Global roll-out of comprehensive policy measures may aid in bridging emissions gap
JF  - Nature communications
N2  - Closing the emissions gap between Nationally Determined Contributions (NDCs) and the global emissions levels needed to achieve the Paris Agreement’s climate goals will require a comprehensive package of policy measures. National and sectoral policies can help fill the gap, but success stories in one country cannot be automatically replicated in other countries. They need to be adapted to the local context. Here, we develop a new Bridge scenario based on nationally relevant, short-term measures informed by interactions with country experts. These good practice policies are rolled out globally between now and 2030 and combined with carbon pricing thereafter. We implement this scenario with an ensemble of global integrated assessment models. We show that the Bridge scenario closes two-thirds of the emissions gap between NDC and 2 °C scenarios by 2030 and enables a pathway in line with the 2 °C goal when combined with the necessary long-term changes, i.e. more comprehensive pricing measures after 2030. The Bridge scenario leads to a scale-up of renewable energy (reaching 52%–88% of global electricity supply by 2050), electrification of end-uses, efficiency improvements in energy demand sectors, and enhanced afforestation and reforestation. Our analysis suggests that early action via good-practice policies is less costly than a delay in global climate cooperation.
KW  - climate-change mitigation
KW  - climate-change policy
Y1  - 2021
U6  - https://doi.org/10.1038/s41467-021-26595-z
N1  - Corrigendum: https://doi.org/10.1038/s41467-022-27969-7
VL  - 12
IS  - 1
PB  - Nature Publishing Group UK
CY  - London
ER  -