Nature Climate Change, Published online: 30 March 2020; doi:10.1038/s41558-020-0736-x Future Arctic methane emissions depend partly on interactions between soil carbon released during permafrost thaw and microbial physiology. Now, a model shows potential increased methane produced from thawing permafrost carbon could be offset by increased consumption by upland methanotrophs.
Nature Climate Change, Published online: 30 March 2020; doi:10.1038/s41558-020-0734-z Models overestimate Arctic methane emissions compared to observations. Incorporating microbial dynamics into biogeochemistry models helps reconcile this discrepancy; high-affinity methanotrophs are an important part of the Arctic methane budget and double previous estimates of methane sinks.
Nature Climate Change, Published online: 30 March 2020; doi:10.1038/s41558-020-0731-2 Climate change detection is confounded by internal variability, but recent initial-condition large ensembles (LEs) have begun addressing this issue. This Perspective discusses the value of multi-model LEs, the challenges of providing them and their role in future climate change research.
Nature Climate Change, Published online: 17 February 2020; doi:10.1038/s41558-020-0699-y Anthropogenic aerosols mask some greenhouse warming via radiation scattering and cloud interactions. Research suggests the economic impact of this aerosol-induced cooling was small globally, although it benefitted developing countries in warm climates and harmed high-latitude developed countries.
Nature Climate Change, Published online: 17 February 2020; doi:10.1038/s41558-020-0713-4 Climate change has led to earlier spring leaf-out in northern temperate and boreal regions. This advanced leaf-out causes warming in the Northern Hemisphere due to the combined effects of water vapour, cloud and snow-albedo feedbacks on the surface energy budget.
Nature Climate Change, Published online: 17 February 2020; doi:10.1038/s41558-020-0714-3 Atmospheric aerosols have probably masked a significant portion of the greenhouse-gas-induced warming so far. Research now shows that this also may have masked some of the world's increasing economic inequality.
Nature Climate Change, Published online: 17 February 2020; doi:10.1038/s41558-020-0706-3 Temperature affects the metabolic rates of species, their feeding interactions and their ability to persist in a given environment. Now research suggests that different effects of temperature on consumers and resources could cause food webs in cold climates to become less vulnerable to species loss, whereas tropical communities may be more vulnerable as temperatures climb.
Nature Climate Change, Published online: 17 February 2020; doi:10.1038/s41558-020-0698-z Global warming will affect food-web structure and species persistence, and real world data is needed for better prediction. Combining species counts and temperature data from rock pools with dynamic modelling predicts biodiversity increases in arctic to temperate regions and declines in the tropics.