Tiny fossils in marine sediments verify that climate models provide accurate calculations of average ocean temperatures during the last glacial maximum around 20,000 years ago, but that the spatial distribution of simulated temperatures is too uniform and thus only partially valid for predicting future climate.
Pine Island Glacier in West Antarctica has gone through an irreversible retreat, passing a tipping point within the last 80 years, researchers have found.
Global carbon emissions from fossil fuels have risen again in 2023—reaching record levels, according to new research from the Global Carbon Project science team.
You need only to remember last summer’s wildfires in the United States and Canada, which fouled the air from coast to coast, to know the effects these blazes can have on the environment and human health.
A consideration of how mountains influence El Niño and La Niña-induced precipitation change in western North America may be the ticket to more informed water conservation planning along the Colorado River, new research suggests.
Himalayan Glaciers fight back to preserve themselves, but for how long? An international team of researchers, co-led by Professor Francesca Pellicciotti of the Institute of Science and Technology Austria (ISTA), explains a stunning phenomenon: rising global temperatures have led Himalayan glaciers to increasingly cool the air in contact with the ice surface. The ensuing cold winds might help cool the glaciers and preserve the surrounding ecosystems. The results, found across the Himalayan range, were published in Nature Geoscience.
A recent study published in the Journal of Geophysical Research: Solid Earth sheds new light on the formation of the East Coast of the United States—a “passive margin,” in geologic terms—during the breakup of the supercontinent Pangea and the opening of the Atlantic Ocean around 230 million years ago.
Simultaneous episodes of extreme heat and drought—typical of a moderate warming scenario predicted for the end of the 21st century—could occur earlier and repeatedly in Europe, reports a study published in Communications Earth & Environment.
Writing in the journal Nature ahead of COP28, a team of Met Office scientists has emphasized that—surprisingly—there is currently no formally agreed way of defining the current level of global warming relevant to the Paris Agreement.
While the impacts of climate change vary across the globe, most scientists agree that, overall, a warming environment is increasing both the frequency and intensity of severe weather events such as tornados and intense thunderstorms.
A team of scientists found that carbon dioxide becomes a more potent greenhouse gas as more is released into the atmosphere.
Over the past decades, environmental scientists and engineers have been trying to devise effective solutions to reduce greenhouse gas emissions and mitigate the adverse effects of climate change. This has led to the creation of various energy models, frameworks that can be used to investigate emission mitigation scenarios in the hope of meeting the goals outlined by the Paris Agreement.
MIT geologists have found that a clay mineral on the seafloor, called smectite, has a surprisingly powerful ability to sequester carbon over millions of years.
Coral reefs, among the most diverse and valuable ecosystems on Earth, are under threat due to the changing climate. In a new study, an international research team found that if reefs were to disappear entirely, it may take millions of years—even after environmental conditions improve—for them to recover.
Man-made global warming exacerbated an incident of extreme flooding and heat in eastern China in 2020, according to a study released Wednesday, which highlighted the need to prepare for increasingly intense episodes of such weather in the country.
Nineteen million years ago, during a time known as the early Miocene, massive ice sheets in Antarctica rapidly and repeatedly grew and receded. The Miocene is widely considered a potential analog for Earth’s climate in the coming century, should humanity remain on its current carbon emissions trajectory.
The Cascade Volcanic Arc stretches from Northern California to southern British Columbia and contains more than a dozen volcanoes. The U.S. Geological Survey classifies 11 of them, including Mount Baker and Mount Hood, as “very high threat,” meaning they pose significant hazards to people and infrastructure.
The record storm surge in October 2023 caused severe damage to the German Baltic coast. Effective adaptation scenarios to rising sea levels are, therefore, becoming increasingly urgent. In two recent studies, researchers at Kiel University have modeled both the flooding extent along the Baltic Sea coastal areas and, for the first time, two possible upgrades for current dike lines in high resolution.
A Griffith-led study has assessed whether basic human water needs can be met without exceeding safe and just Earth system boundaries (ESBs) for surface and groundwater (blue water), defined to protect people and planet.
Scientists are warning that apparently stable glaciers in the Antarctic can “switch very rapidly” and lose large quantities of ice as a result of warmer oceans.
A new international study has tested the extent to which global water models agree with one another and with observational data. Using a new evaluation approach, the research team, which includes IIASA researchers, can show in which climate regions the models agree and where they differ.
A recent study reveals the profound impact of pollution on cloud behavioוr. This newfound understanding illuminates the intricate ways in which pollution alters our climate. Such research marks a significant advance in comprehending the influence of pollution on our weather and broader climate dynamics. Emphasizing the need to factor in both localized cloud formations and overarching climate patterns, it underscores the criticality of considering all scales in studying the effects of pollution on our climate.
An international team of marine biogeochemist and atmospheric scientists have made a rare discovery in the almost uncharted atmosphere of the South Pacific Ocean. They found that nocturnal nanoparticle bursts that contain nitrogenous compounds originate when marine micro-organisms apparently shield themselves from UV radiation. These particles help form clouds over the ocean, which reduces warming of the climate.
At irregular intervals, a momentous weather phenomenon called El Niño (Spanish for “Christ Child”) occurs in the Pacific. The warm surface water initially driven by the trade winds towards the coasts of Indonesia and eastern Australia then sloshes back eastwards, which can have devastating consequences.
What wiped out the dinosaurs? A meteorite plummeting to Earth is only part of the story, a new study suggests. Climate change triggered by massive volcanic eruptions may have ultimately set the stage for the dinosaur extinction, challenging the traditional narrative that a meteorite alone delivered the final blow to the ancient giants.
Scientists have made a surprising discovery that sheds new light on the role that oceanic deoxygenation (anoxia) played in one of the most devastating extinction events in Earth’s history. Their finding has implications for current-day ecosystems—and serves as a warning that marine environments are likely more fragile than apparent.
Methane is the second-most abundant greenhouse gas in Earth’s atmosphere, and its emissions have been rapidly—and mysteriously—rising since 2007. Though pervasive, the origin of the colorless compound is tricky to trace, complicating efforts to curb gases that trap heat in the atmosphere and warm the planet.