07.06.2021

# Media

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Phys.org: Sea ice kept oxygen from reaching deep ocean during last ice age

"Extensive sea ice covered the world's oceans during the last ice age, which prevented oxygen from penetrating into the deep ocean waters, complicating the relationship between oxygen and carbon, a new study has found."

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04.01.2021

# New Publications

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Friedlingstein, Pierre; et al. (2020): Global Carbon Budget 2020

Friedlingstein, Pierre; O'Sullivan, Michael; Jones, Matthew W.; Andrew, Robbie M.; Hauck, Judith; Olsen, Are et al. (2020): Global Carbon Budget 2020. In Earth Syst. Sci. Data 12 (4), pp. 3269–3340. DOI: 10.5194/essd-12-3269-2020.

"Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate – the “global carbon budget” – is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe and synthesize data sets and methodology to quantify the five major components of the global carbon budget and their uncertainties."

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04.11.2020

# New Publications

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Varney, Rebecca M.; et al. (2020): A spatial emergent constraint on the sensitivity of soil carbon turnover to global warming

Varney, Rebecca M.; Chadburn, Sarah E.; Friedlingstein, Pierre; Burke, Eleanor J.; Koven, Charles D.; Hugelius, Gustaf; Cox, Peter M. (2020): A spatial emergent constraint on the sensitivity of soil carbon turnover to global warming. In Nat Comms 11 (1), p. 5544. DOI: 10.1038/s41467-020-19208-8.

"Here, we present a constraint on ΔCs,τ, which makes use of current heterotrophic respiration and the spatial variability of τs inferred from observations. This spatial emergent constraint allows us to halve the uncertainty in ΔCs,τ at 2 °C to −232 ± 52 PgC."

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23.09.2020

# New Publications

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Watson, Andrew J.; et al. (2020): Revised estimates of ocean-atmosphere CO2 flux are consistent with ocean carbon inventory

Watson, Andrew J.; Schuster, Ute; Shutler, Jamie D.; Holding, Thomas; Ashton, Ian G. C.; Landschützer, Peter et al. (2020): Revised estimates of ocean-atmosphere CO2 flux are consistent with ocean carbon inventory. In Nat Comms 11 (1), p. 4422. DOI: 10.1038/s41467-020-18203-3.

"We estimate uncertainties using multiple interpolation methods, finding convergent results for fluxes globally after 2000, or over the Northern Hemisphere throughout the period. Our corrections reconcile surface uptake with independent estimates of the increase in ocean CO2 inventory, and suggest most ocean models underestimate uptake."

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15.09.2020

# Media

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C2G Guest Post: Can we end hunger and reduce CO2 levels at the same time?

"Functioning ecosystems are not only central to the carbon cycle; they are the basis of livelihoods, culture and identity for people. Healthy ecosystems protect biodiversity, water cycles, disaster risk reduction, global health, and – perhaps most crucially of all – food."

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05.08.2020

# New Publications

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Lee, Hanna; et al. (2020): The response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering

Lee, Hanna; Muri, Helene; Ekici, Altug; Tjiputra, Jerry; Schwinger, Jörg (2020): The response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering. In Earth Syst. Dynam. DOI: 10.5194/esd-2020-57.

"We find that changes in vegetation carbon storage under geoengineering application was much smaller than what is exhibited under RCP4.5 scenario that uses climate mitigation efforts by afforestation in the tropics. Hence, it would be important to consider the multiple combined effects and responses of land biomes when applying different strategies to reach the global temperature targets of the Paris Agreement."

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28.07.2020

# Media

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Carbonplan: Carbon removal mechanisms

"Funding and policy decisions require a full analysis of the comparative benefits, which in turn requires an understanding of how projects affect the global carbon cycle."

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11.05.2020

# Media

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CarbonBrief: Analysis: How ‘carbon-cycle feedbacks’ could make global warming worse

"Scientists making climate-change projections have to deal with a number of uncertainties."

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10.03.2020

# Media

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The Guardian: Trees on commercial UK plantations 'not helping climate crisis'

"Exclusive: carbon from most harvested wood soon ends up back in atmosphere, says study"

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24.02.2020

# Media

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Video: SciShow: The Most Incredible Snowfall on Earth Occurs Deep Underwater

"Deep in the ocean, fluffy bits of organic matter fall like snow. But this marine snow isn’t just pretty; it’s an essential part of our ocean food webs and our global climate!"

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