Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2020 Dec;1(12):775-782.
doi: 10.1038/s43016-020-00195-4. Epub 2020 Dec 11.

Narrowing uncertainties in the effects of elevated CO2 on crops

Andrea Toreti #  1 , Delphine Deryng #  2   3   4 , Francesco N Tubiello  5 , Christoph Müller  6 , Bruce A Kimball  7 , Gerald Moser  8 , Kenneth Boote  9 , Senthold Asseng  9 , Thomas A M Pugh  10   11   12 , Eline Vanuytrecht  13   14 , Håkan Pleijel  15 , Heidi Webber  16 , Jean-Louis Durand  17 , Frank Dentener  18 , Andrej Ceglar  18 , Xuhui Wang  19   20 , Franz Badeck  21 , Remi Lecerf  18 , Gerard W Wall  7 , Maurits van den Berg  18 , Petra Hoegy  22 , Raul Lopez-Lozano  23 , Matteo Zampieri  18 , Stefano Galmarini  18 , Garry J O'Leary  24 , Remy Manderscheid  25 , Erik Mencos Contreras  26   27 , Cynthia Rosenzweig  26   27
Affiliations
Review

Narrowing uncertainties in the effects of elevated CO2 on crops

Andrea Toreti et al. Nat Food. 2020 Dec.

Abstract

Plant responses to rising atmospheric carbon dioxide (CO2) concentrations, together with projected variations in temperature and precipitation will determine future agricultural production. Estimates of the impacts of climate change on agriculture provide essential information to design effective adaptation strategies, and develop sustainable food systems. Here, we review the current experimental evidence and crop models on the effects of elevated CO2 concentrations. Recent concerted efforts have narrowed the uncertainties in CO2-induced crop responses so that climate change impact simulations omitting CO2 can now be eliminated. To address remaining knowledge gaps and uncertainties in estimating the effects of elevated CO2 and climate change on crops, future research should expand experiments on more crop species under a wider range of growing conditions, improve the representation of responses to climate extremes in crop models, and simulate additional crop physiological processes related to nutritional quality.

PubMed Disclaimer

References

    1. Rosenzweig, C. et al. The agricultural model intercomparison and improvement project (AgMIP): protocols and pilot studies. Agric. For. Meteorol. 170, 166–182 (2013).
    1. Hermwille, L., Siemons, A., Förster, H. & Jeffery, L. Catalyzing mitigation ambition under the Paris Agreement: elements for an effective global stocktake. Clim. Policy 9, 988–1001 (2019).
    1. Grassi, G. et al. Reconciling global-model estimates and country reporting of anthropogenic forest CO2 sinks. Nat. Clim. Change 8, 914–920 (2018).
    1. Kimball, B. A. Crop responses to elevated CO2 and interactions with H2O, N, and temperature. Curr. Opin. Plant Biol. 31, 36–43 (2016). - PubMed
    1. Wiebe, K. et al. Climate change impacts on agriculture in 2050 under a range of plausible socioeconomic and emissions scenarios. Environ. Res. Lett. 10, 085010 (2015).

LinkOut - more resources