Thumbnail Image

Narrowing uncertainties in the effects of elevated CO2 on crops

Year of publication 2020

Place of publication Rome, Italy ;

Pages 31 p.

Author Toreti, A., Deryng, D., Tubiello, F.N. et al.

Publisher IOS Press ;

Product type Article

Synopsis (short 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.

This is the draft pre-print paper of an article published externally in Nature Food December 2020, pp. 775–782. Published 11 December 2020

Cite this content as:

Toreti, A., Deryng, D., Tubiello, F.N. et al. Narrowing uncertainties in the effects of elevated CO2 on crops. Nat Food 1, 775–782 (2020). https://doi.org/10.1038/s43016-020-00195-4

Language English

Also available in:
No results found.

Related items

Showing items related by metadata.

  • No Thumbnail Available
  • Thumbnail Image
    Brochure, flyer, fact-sheet
    Carbon footprint of the banana supply chain 2016
    Also available in:
    Due to the growth of agricultural production, FAO estimated that emissions from agriculture, forestry and fisheries have almost doubled over the past fifty years and could increase by 18% by 2030 and 30% by 2050 . Since the years 2000, this increase has mainly occurred in developing countries. Between 2001 and 2010, Asia (44%) and the Americas (26%) were the largest contributors to global emissions, followed by Africa (15%) and Europe (12%) . Agricultural production and land use change (defores tation) are responsible for most of agricultural GHG emissions, with respectively 50% and 38% of the emissions share in the sector. For the period 2001-2010, the largest emission source was agriculture followed by net forest conversion (38%), peat degradation (cultivation of organic soils and peat fires) (11%) and biomass fires (1%).
  • Thumbnail Image
    Booklet
    Greenhouse gas emissions from agrifood systems
    Global, regional and country trends, 2000–2020
    2022
    Also available in:
    No results found.
    Agrifood systems account for one-third of total anthropogenic greenhouse gas emissions. They are generated in various ways: within the farm gate, through crop and livestock production; through land-use change; and in pre- and post-production processes, including food manufacturing, retail, household consumption and food disposal. According to the latest data, global agrifood systems emissions reached 16 billion tonnes of carbon dioxide equivalent (Gt CO2eq) in 2020, an increase of 9 percent since 2000.
Show more

Users also downloaded

Showing related downloaded files

No results found.