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Accelerating increase in the duration of heatwaves under global warming
The duration of long heatwaves increases at an accelerating rate with warming such that a large increase in the risk of long-lasting heatwaves results from relatively modest warming, according to an analysis of historical and projected heatwaves.
- Cristian Martinez-Villalobos
- Danning Fu
- J. David Neelin
ArticleGlobal-scale shifts in marine ecological stoichiometry over the past 50 years
Fifty years of plankton and water samples show that the proportion of carbon, nitrogen and phosphorus in the ocean now substantially differs from the Redfield ratio, probably reflecting a reduction in phosphorus limitation.
- Ji Liu
- Hai Wang
- Ji Chen
ArticleFast ice — the last line of defence for weakened Antarctic ice shelves
A new study tracks sea ice, ocean swell and ice shelf conditions over multiple years in the lead-ups to large-scale Antarctic ice shelf calving events. We quantified the strengths and durations of increased ice shelf flexure that preconditioned and subsequently triggered the calving events.
Research BriefingLarge-scale ice-shelf calving events follow prolonged amplifications in flexure
The loss of sea ice enhances swell-induced flexural stress in Antarctic ice shelves before large-scale calving events, according to satellite observations and swell-induced flexural stress modelling.
- Nathan J. Teder
- Luke G. Bennetts
- Alexander D. Fraser
ArticleOpen AccessSoil carbon accrual and crop production enhanced by sustainable subsoil management
The injection of straw into subsoils can increase soil organic carbon and crop yields substantially and could therefore provide an effective approach for subsoil management in croplands, according to 15 years of field experiments on rice–wheat croplands in China.
- Zheng-Rong Kan
- Zhenzhen Li
- Haishui Yang
ArticleMantle upwelling at Afar triple junction shaped by overriding plate dynamics
The mantle upwelling beneath the Afar rift may be influenced by tectonic processes in the overriding lithospheric plates that shape the distribution of both the compositional heterogeneities and abundance of melt, according to a geochemical and statistical study of volcanic samples.
- Emma J. Watts
- Rhiannon Rees
- Thomas M. Gernon
ArticleOpen AccessCropland expansion reduces biogenic secondary organic aerosol and associated radiative cooling
Model simulations suggest that cropland expansion since industrialization has reduced atmospheric biogenic secondary organic aerosol by 10% and its associated radiative cooling effect by 11%.
- Jialei Zhu
- Joyce E. Penner
- Pingqing Fu
ArticleBridgmanite’s ferric iron content determined Earth’s oxidation state
As bridgmanite crystallized from a reduced magma ocean, it left an oxidized lower mantle that may explain the oxidation state of the current upper mantle after mixing, according to high-pressure and high-temperature multi-anvil experiments.
- Fei Wang
- Lin Wang
- Tomoo Katsura
ArticleOpen AccessClimate-driven global cropland changes and consequent feedbacks
Cropland area—and associated carbon dioxide emissions—in 110 studied countries is 6% higher than it would be without declines in agricultural productivity caused by climate change, according to a comparison of models with and without climate impacts.
- Nanshan You
- Jessica Till
- Zhenong Jin
ArticleNorthern ecosystem productivity reduced by Rossby-wave-driven hot–dry conditions
Satellite observations suggest that prolonged hot–dry conditions induced by Rossby waves in the jet stream reduce ecosystem productivity, providing insights into the potential impacts of a future warmer and probably drier climate.
- Xu Lian
- Yangmingkai Li
- Pierre Gentine
ArticleThe extra climate benefits of solar farms
With solar projects worldwide expected to expand rapidly, understanding the ecosystem impacts is vital. Recent work highlights that optimizing land use strategies can significantly enhance carbon sequestration in the hosting ecosystem, making them a more effective tool in combating climate change.
- Zhengyao Lu
News & ViewsJadarite’s unique recipe
Jadarite is a lithium-bearing mineral with the potential to facilitate the green energy transition. However, the route to form it is so specific that it is only known from one deposit on Earth, as Francesco Putzolu and colleagues explain.
- Francesco Putzolu
- Robin N. Armstrong
- Richard J. Herrington
All Minerals Considered