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Climate change not only affects environmental systems, but also alters the living conditions for many humans dramatically. On this page, we show articles that allow us to better understand the consequences of human emissions. Given the multitude of impacts, this includes research from all disciplines, in particular ecology, economics, social sciences, climatology and life science, but also multidisciplinary works.
This study examines the effect of four marine heatwaves in the Northeast Pacific on the distributions of 14 top predators, revealing a wide-array of predator responses both among and within heatwaves. Predator responses were highly predictable, demonstrating capacity for early warning systems of heatwave impacts, similar to weather forecasts.
Marine heatwaves and mass bleaching mortality events threaten the persistence of coral communities on tropical reefs. This study demonstrates that the thermal tolerance of coral communities in Palau has likely increased since the late 1980s. Such ecological resilience could reduce future bleaching impacts if global carbon emissions are cut down.
The risk of heat-mortality is increasing sharply. The authors report that heat-mortality levels of a 1-in-100-year summer in the climate of 2000 can be expected once every ten to twenty years in the current climate and at least once in five years with 2 °C of global warming.
Pugliese et al., show that severe drought and rewetting have a major impact on the capacity of rainforest soil to consume and emit volatile organic compounds (VOCs), affecting the atmospheric VOC budget and thereby atmospheric chemistry and climate.
AMOC-induced heat advection controls ocean temperature in the subtropical North Atlantic, drives year-to-year changes of basin-wide and coastal sea level, and accounts for 30-50% of flood days along the South Atlantic Bight and Gulf of Mexico coasts in 2015-2020.
Yellow-seed trait is preferred in rapeseed breeding as it can greatly improve seed oil yield and quality. Here, the authors assemble the genome of two rapeseed lines with yellow-seed and black-seed phenotypes, and clone an R2R3-MYB-type transcription factor encoding gene as a key regulator of seed color.
The Atlantic meridional overturning circulation (AMOC) is a major tipping element in the climate system. Here, data-driven estimators for the time of tipping predict a potential AMOC collapse mid-century under the current emission scenario.
Historical velocity maps reveal over five decade-long acceleration and high-level discharge in Totten Glacier, East Antarctica, from 1963-2018, induced by warm modified Circumpolar Deep Water.
Storm severity indices of European winter storms in climate models show future increased storm losses in northwestern Europe, caused by changes in the location and intensity of storms, and increasing population.
This study presents an absolute metabolic index that quantifies how ocean temperature, dissolved oxygen and organismal mass interact to constrain the oxygen budget an organism can use to fuel aerobic metabolism. The index is calibrated with physiological measurements from purple sea urchin and red abalone and the authors test if the index can delimit the distribution of these two species.
Simultaneous harvest failures across crop-producing regions are major threats to global food security. A strongly meandering jet can trigger these, however, climate and crop models underestimate effects with consequences for climate risk assessments.
This study shows that climate change will alter the sea surface temperature - precipitation relationships and our ability to predict seasonal precipitation by 2100.
A shift in summer atmospheric circulation has accelerated Greenland Ice Sheet melt. The authors show that diminished North American snow cover supports these conditions by inducing a stationary Rossby wave that favors high pressure over Greenland.
Tree growth in boreal forests is generally predicted to increase under warming. Here, the authors demonstrate a method to analyze physiologically informed temperature series of tree-ring data, finding potentially overlooked growth-temperature responses and projecting increasing risks of warming to boreal larch forests.
This paper presents a method for quantifying the benefits of beaches in reducing storm and long-term coastal flood risk. This method can contribute to cost-effective decision-making on climate change adaptation in many of the world’s coasts.
Protected areas are important for climate change mitigation. Here, the authors use satellite data and statistical matching to show that terrestrial protected areas have higher C stocks than non-protected areas, roughly equivalent to one year of annual global fossil fuel emissions.
In this study, the authors use eddy-resolving climate model simulations and project an almost linear increase of extreme atmospheric rivers with global warming and a doubling of their occurrence under a high emission scenario.
“Factors influencing soil microbiota functioning remain understudied. Here, the authors describe bacterial and fungal diversity across Europe and along a gradient of land-use perturbation, observing that the occurrence of pathogens, symbionts and saprotrophs varied among cropland, woodland and grassland.”
A dominant influence of anthropogenic greenhouse gas increases on Arctic sea ice area is detectable in all months. By scaling climate models’ sea ice response to best match observed trends, an ice-free Arctic in September is projected under all scenarios.
Despite worldwide prevalence, post-agricultural landscapes remain one of the least constrained human-induced land carbon sinks. To appraise their role in rebuilding the planet’s natural carbon stocks through ecosystem restoration, we need to better understand their spatial and temporal legacies.
This study shows that the occurrence frequency of global precipitation whiplash is projected to be ~2.6 times higher by the end of the 21st century compared to 1979–2019, with increasingly rapid and intense transitions between the two extremes.
Adaptation policies can considerably influence the intensity and spatial patterns of sealevel rise-related migration, with managed retreat and setback zones leading to outmigration, while hard protection measures favor migration toward the coast.
The capacity of coral reefs to keep pace with sea-level rise is central to their ability to continue to provide shoreline protection to vulnerable coastal communities. Here, the study shows that whereas restoration has the potential to minimize climate-change impacts, doing nothing will amplify them.
The global risk of record-breaking heatwaves is assessed, with the most at-risk regions identified. It is shown that record-smashing events that currently appear implausible could happen anywhere as a result of climate change.
Sea level rise along the U.S. Southeast and Gulf Coast has accelerated since 2010 due to changes in steric expansion and the ocean’s circulation. The acceleration represents the compounding effects of external forcing and natural climate variability.
Tropical forest ecosystems supply ecosystem services of global importance. Here, the authors show that climate change reduces climate regulation and habitat services in Central American forests and results in high economic costs.
In contrast to the North Atlantic, the projected overturning circulation in the Nordic Seas increases throughout most of the 21st century in global climate model simulations. The Nordic Seas could therefore be a stabilizing factor in the future AMOC.
Heat waves and droughts increase air pollution from power plants in California, which disproportionately damages counties with a majority of people of color. Droughts cause chronic increases in pollution damages. Heat waves are responsible for the days with the highest damages.
Extreme ice sheet melt events in northeast Greenland occur after intense water vapor transport into northwest Greenland by atmospheric rivers. Through the foehn effect, the air becomes warmer and drier as it descends the ice sheet slope.
Elevation-dependent warming trends have been previously identified, but its effect on fire danger is still unclear. Here the authors show that there has been widespread increases in fire danger across the mountainous western US from 1979 to 2020 with most acute trends at high-elevation regions above 3000 m.
The authors investigate marine heatwaves on the ocean bottom in the shallow waters surrounding North America. Relative to their surface counterparts, bottom marine heatwaves are often more intense, more persistent, and can occur independently.
Climate projections at km-scale show that local hourly precipitation extremes in the UK become 4-times more frequent by 2070, while they do not intensify gradually with warming, but tend to cluster in time.
Coastal connectivity between ecosystems increases with sea level rise but fails to maintain landscape carbon storage and marsh extent at extreme rates of sea level rise.
This study discovered non-monotonic variations in river flows for seven rivers originating from the Tibetan Plateau at warming levels of 1.5 °C, 2.0 °C, and 3.0 °C, which then resulted in different consequences for riparian countries
When soil moisture is within the transitional regime that is neither too dry nor too wet, its variation affects evaporation and thus climate. This study shows that, under global warming, more areas will experience a transitional regime.
The 2021 unprecedented Pacific Northwest heatwave broke temperature records by extraordinary amounts. Impacts included hundreds of deaths, mass-mortalities of marine life, increased wildfires, reduced crop and fruit yields, and river flooding.
Most global sea level projections ignore the active role of ice-sheet-climate coupling. Including this effect, a new modeling system simulates irreversible Antarctic ice-sheet loss and accelerating sea level rise for global mean temperatures >1.8oC.
Desert-dwelling species are adapted to high temperatures, but further warming may push them beyond their physiological limits. Here, the authors integrate biophysical models and species distributions to project physiological impacts of climate change on desert birds globally and identify potential refugia.
The authors link the frequency of convective storms in the Amazon basin to the density of large forest mortality events (windthrows) and project an increase in forest disturbance from these dynamics due to climate warming over this century.
Hidden marine heatwaves, associated with ocean eddies that modulate undersea internal waves, threaten coastal ecosystems by driving unexpected sub-surface heating and severe coral bleaching and mortality across depths.
This study shows prominent synchronous co-evolution of drought events in drought hubs in sub-tropical regions, influenced by sea surface temperature patterns and teleconnections. Such simultaneous occurrence of droughts may have detrimental impacts.
The biologically productive eastern boundary upwelling systems (EBUSs) are regarded as thermal refugia in a warming climate. However, the authors here show that Southern Hemisphere EBUSs are likely to become hotspots of future marine heatwaves.
Since the Paris Agreement recognized in 2015 cities have pledged climate actions that often exceed the scope and ambition of their national governments’ policies but there is scant evidence of these actions’ outcomes, largely because of the lack of reported emissions data. Here the authors utilize spatially explicit datasets relevant to urban carbon emissions and self-reported emissions data from European cities, and develops a machine-learning approach to predict and explore trends in city-scale mitigation.
Decarbonization is essential to achieving climate goals, but myopic decarbonization policies that ignore co-pollutants may leave Black and high-poverty communities with 26-34% higher PM2.5 exposure over the energy transition.
How land-tenure regimes affect deforestation remains ambiguous. This study shows how deforestation in Brazil is land-tenure dependent, and how strategies to effectively reduce deforestation can range from strengthening poorly defined rights to strengthening conservation-focused regimes.
Increases in high-impact marine heatwaves over the past few decades are found to be due to recent acceleration in long-term ocean surface warming, stressing the need of careful attribution of climate change impact on extreme events.
In a world of deepening inequalities, climate polices might be feasible in high-income countries only. Here the authors find that overcoming global inequality through sustainable socio-economic development is critical for land-based mitigation in line with the Paris Agreement.
Ocean thermal energy conversion (OTEC) resources provide a renewable solution to fuel our future. Here the authors show a significant increase of OTEC resources under greenhouse warming with the increasing rate regulated by oceanic eddies.
Rivers and streams are increasingly drying with climate change and biogeochemical impacts may be important. In this comment the authors discuss the challenges to the biogeochemistry of non-perennial rivers and streams, and what can be done to tackle them.
Under global warming, increased variability in El Niño sea surface temperature was projected to be detectable by about 2070. Here the authors show that the increased variability of a type of more impactful El Niño events is likely detectable by 2030.