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A 6° poleward shift of the Antarctic Circumpolar Current in the Indian Ocean during deglaciations could have enhanced ocean degassing of carbon dioxide, according to biomarker-based reconstructions of meridional sea surface temperature gradients.
High food and energy prices due to the Russia-Ukraine war decrease food affordability but could reduce global greenhouse gas emissions according to a computable general equilibrium model simulating the medium-term impact of the conflict.
A warm multidecadal Atlantic oscillation in phase with solar maxima caused prolonged drought during medieval and modern periods and reduced groundwater recharge rates, according to the analysis of model simulations from the Tiber River Basin, Italy, over the period 801-2020.
Geochemical markers of hidden geothermal systems can be identified even in extremely low ion content waters, and could be a useful tool for geothermal exploration, according to an analysis of cold waters at Piton de la Fournaise, Réunion Island.
A doubling of preindustrial carbon dioxide concentrations could increase fire activity by about 66%, largely due to enhanced vegetation growth, according to an analysis of future model simulations from seven Earth system models.
Future climate change can trigger air-sea feedbacks in the Northeast Pacific, further raising the intensity and spatial extent of summer marine heatwaves beyond the long-term warming, according to model simulations using a novel storyline approach.
During the Last Glacial Maximum, Australia experienced cooler temperatures than in modern times, but the Indo-Australian summer monsoon remained unchanged, and human activity stayed stable, suggests a study combining model simulations, paleo-proxy and archaeological data.
Compositional and phylogenetic differences between soil and plastisphere fungal communities indicate selection of pathogens in the plastisphere, according to metagenomic analyses and neutral community modelling applied to soil samples from Kenya.
Earlier occurrence of the stratospheric final warming in the Southern Hemisphere vortex over the past two decades is linked to warmer surface temperatures over interior Antarctica, according to an investigation using reanalysis data.
Steps to enhance countries’ emission pledges – early implementation of existing net-zero pledges, inclusion of all countries, and aiming for net-zero 5 years earlier– can close most of the gap between emissions trends and Paris targets, according to integrated assessment model results.
High-risk weather patterns and pattern transitions related to weather-induced power system failures across seasons in the United Kingdom are identified with the help of an analysis of weather patterns and power system failure data.
Expansion of the Ross Gyre increases poleward transport of Circumpolar Deep Water toward the Amundsen Sea and the West Antarctic Ice Sheet and has implications for oceanic heat supply to the continental shelf, according to numerical modelling.
The Brazilian Amazon was a net carbon source during recent climate extremes and the south-eastern Amazon was a net land carbon source between 2010 and 2020 due to increasing human-induced disturbance and drought, suggest bottom-up and top-down estimates of land carbon fluxes.
Cities in the United States are adapting to flood risks, yet over half of high-risk cities remain underprepared; financial constraints and short-term planning are barriers to adequate adaptation, according to analysis of financial disclosure data.
The assimilation of continental crustal material is a critical differentiation mechanism which drives sulfide segregation and sulfide-controlled metal storage, according to petrological and geochemical analyses of lower crustal rocks exposed in northern Italy
Regional-scale gravity fields can be evaluated using terrestrial gravity repeated measurements, according to a comparison between Gravity Recovery and Climate Experiment (GRACE) measurements and a time-variable terrestrial gravity model for North China
Increased phosphorous availability and enhanced rate of primary production in the Ediacaran Ocean could have aided diversification and the rise of complex life, according to geochemical and microscopy analyses of iron formations from northwest China
The environmental impact of companies from carbon dioxide emissions, energy use, water withdrawal and waste production increases more slowly than the size of the company, according to an analysis of 6500 companies’ data for 2018.
An approach to predict realistic spatial surfaces of extreme storm surge event probabilities and their uncertainty along the contiguous United States coastline is developed using stochastic generation of synthetic extreme surges at the gauged and ungauged gridded locations.
The 2019 Brumadinho tailings dam collapse can be explained by strain weakening behaviour and the growth of a sub-horizontal slip surface through internal creep deformation under constant stress, according to 2D finite element numerical simulations.