Articles tagged with Sea Level Rise
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A new study published in the Journal of Glaciology suggests that prior attempts to evaluate the mass of Antarctic ice shelves may have overestimated their thickness. The researchers found that on average, the Antarctic ice shelves are nearly 6% thinner than previously assumed, a difference of about 17 meters.
A new study published in Nature warns that coastal wetlands and coral reef islands are unlikely to survive at current rates of sea-level rise exceeding 7 millimeters per year. The study suggests that global warming must be limited to less than 2 degrees Celsius for these ecosystems to have a chance.
A new study suggests that emphasizing the need for energy independence and environmental stewardship could change people's minds about climate change. The research found that those who deny climate change often focus on personal experiences and local issues, but may not be aware of the scale of the problem.
A global research team warns that rapid sea level rise and coastal habitat retreat will happen again if warming levels rise above Paris Agreement targets. Coastal ecosystems such as mangroves, marshes, and coral reefs are essential to protect coastlines, trap carbon, and sustain millions of coastal residents.
A team of international scientists found that coral reefs, marshes, and mangroves could be destroyed within the next 30 years from rising sea levels. Coastal habitats are essential for protecting coastlines, trapping carbon, and supporting millions of coastal residents.
A new study reveals massive urban expansions throughout the contiguous US, particularly on the Atlantic Coast, have led to significant tidal flat erosion. The research highlights the critical impact of human activities on tidal flat environments, providing important implications for coastal land use and planning.
Researchers develop a new model predicting up to twice the original amount of subglacial water may be draining into the ocean, accelerating glacial melt and sea level rise. The theory uses satellite measurements and is a simple equation that can predict exfiltration in a fraction of a second on a laptop.
Research reveals US municipal bonds are priced higher for communities with larger Black populations, despite lack of correlation with climate risk. This association adds up to an estimated $900 million cost penalty per year across all Black Americans.
A study found that the silver rice rat, an endangered Florida Keys species, shifted its habitat in response to sea level rise, moving to higher ground at a rate slightly greater than the observed rise in sea level. The rats' diet and environment are highly restricted, making them sensitive to changes.
A Stanford analysis of planned relocations worldwide shows that community engagement is key to successful outcomes, with slower-paced efforts yielding better results for small communities. The study also found that distance and horizontal movement made little difference for livelihood outcomes.
A new study reveals that large portions of Greenland were ice-free tundra landscapes with trees and woolly mammoths 416,000 years ago. The melting caused at least five feet of sea level rise during a moderate warming period.
A University of California, Riverside-led team found that anthropogenic aerosol-driven changes in ocean circulation and interbasin heat transport are more effective in altering oceanic heat distribution than those driven by globally increasing greenhouse gases. This advance in understanding will help develop climate mitigation strategies.
A new study reveals that human activities such as groundwater withdrawal have shifted the Earth's rotational pole nearly a meter over two decades. This shift is caused by the redistribution of mass due to water movement, with implications for climate change and sea level rise.
Despite years of research, few salt-tolerant crops have been released commercially. KAUST researchers argue that increasing crop salinity tolerance is essential due to climate change impacts. New genetic tools and approaches like grafting or domesticating wild species can help develop more resilient crops.
Researchers investigate the impact of oceanic warming on Antarctic ice shelves, highlighting the role of circumpolar deep water in causing melting and calving. The study emphasizes the need for improved understanding and modeling to predict future sea levels and their effects on coastal communities.
New research reveals that sections of the Chesapeake Bay are sinking at rates of nearly a quarter inch per year, exacerbating flooding risks from rising sea levels and storm surges. The study estimates that 454 to 600 square kilometers face a risk of flooding by 2100, highlighting the need for updated flood maps.
The seven worst years for polar ice sheet melting and losing ice have occurred during the past decade, with 2019 being the worst year on record. Global heating is driving up sea levels and coastal flooding around the world, with melting ice sheets accounting for a quarter of all sea level rise.
A study published in Scientific Reports warns that sea level rises could lead to the flooding of sea turtle breeding grounds in Australia, Dominican Republic, Costa Rica, and the USA. The findings suggest that flooding could contribute to the loss of turtle nesting sites and negatively impact turtle populations.
A study by Ohio State University researchers found Steenstrup Glacier in Greenland is retreating at an unprecedented rate, with a 5-mile retreat and quadrupled velocity between 2018 and 2021. The glacier's rapid change reveals that even long-term stable glaciers are susceptible to sudden and rapid retreat due to warming waters.
Researchers at Harvard University found that rising sea levels and subsidence of Greenland's land mass made the Viking settlement more prone to flooding, leading to their abandonment. The study, published in PNAS, suggests that the Vikings were faced with a myriad of challenges, including environmental change, social unrest, economic t...
A team led by Virginia Tech's Manoochehr Shirzaei has developed high-resolution digital maps to monitor land subsidence and sea-level rise, revealing vulnerable areas along the Atlantic East Coast. The data supports flood risk management and informs climate change projections, helping to refine models for hurricanes and storms.
Researchers found record-breaking rates of sea-level rise of about a half an inch per year since 2010, three times higher than the global average over the same period. The acceleration is attributed to man-made climate change and natural climate variability.
A recent VIMS study uses a new computer model to simulate the impact of sea-level rise on coastal carbon storage. The research found that moderate rates of sea-level rise enhance plant productivity and carbon preservation, while rapid rise rates can lead to marsh collapse and decreased carbon storage.
A 50-year study on Great Sippewissett Marsh found that more than 90% of the world's salt marshes will be underwater by 2100 due to sea-level rise. Despite attempts to adapt, low-lying wetlands are unlikely to migrate landward, and human development may exacerbate the problem.
Salt marshes along the US East Coast have accumulated soil more quickly over the past century to keep up with rising waters. However, this rate of growth will eventually slow down as sea levels continue to rise, and many coastal wetlands may not be able to adapt in time.
A major conference will discuss the human cost of heritage loss due to climate change and explore how behavioural science can inform choices about what should be saved. International scholars and policy experts will examine how to measure the impact of Loss and Damage on coastal heritage.
Scientists have calculated that the Amundsen Sea Embayment in West Antarctica has lost over 3,000 billion tonnes of ice over a 25-year period. The ice loss is attributed to extreme snowfall events and changes in ocean temperature and currents, contributing up to nine millimetres to global sea levels.
Millions of people living in river deltas face risk due to human activities such as damming and levee construction. Climate change is just one part of the story; local resource management can have a greater impact on delta sustainability.
A new study highlights Asian megacities like Chennai, Kolkata, Yangon, Bangkok, Ho Chi Minh City, and Manila as facing significant risks from sea level rise by 2100. The research incorporates natural sea level fluctuations to show how climate change amplifies this effect, leading to more frequent extreme flooding events.
A research team led by Britney Schmidt deployed an underwater robot, Icefin, to explore the Kamb Ice Stream in Antarctica. The robot's findings reveal unprecedented views of ice, ocean, and sea floor interactions, which can improve models of sea-level rise.
Research from Princeton University's engineering school finds that climate change is making sequential damaging hurricanes more likely, with areas like the Gulf Coast facing double hits as frequently as once every 3 years. Rising sea levels and increased precipitation are driving this trend.
Researchers will collect data on flood risk and septic health to identify areas most at risk of failure due to climate change. The team aims to provide data-driven solutions for equitable climate adaptation measures.
Researchers propose using engineering principles to raise island heights or build new ones to help the Maldives withstand long-term sea level rise due to climate change. The approach could allow the entire population to live on just two islands built at a significantly higher elevation than natural islands.
A new study warns that an irreversible loss of West Antarctic and Greenland ice sheets may be imminent if global temperature change cannot be stabilized below 1.8°C, leading to rapid sea level rise.
A new study reveals that glaciers in Greenland move through a complex system involving basal temperate ice and varied landscapes. The research uses computer modeling to better understand the movement of the world's second-largest ice sheet, which could lead to more accurate predictions of sea-level rise.
Humans have added approximately 900 square miles of land to urban coastlines since 2000, primarily for industrial ports and luxury residential areas. The study found that coastal wetlands are particularly hard-hit, with more than half of tidal flats lost in the Yellow Sea due to reclamation.
A recent NTU Singapore study reconstructed the history of The Sundaland using paleogeography and population genetics to show that rapid sea-level rise drove early settlers to migrate, increasing genetic diversity. This finding provides insight into how climate change can profoundly impact human populations.
A new project led by the University of Exeter will assess climate change impacts on Cayman Islands sea turtles, including rising temperatures, storminess, and sea-level rise. The team will develop ways to protect turtles and improve coastal management.
A new study finds that many US coastal communities rely on low estimates of sea level rise, omitting high-end scenarios that could result in costly and dangerous underestimates. The study's authors hope to identify and address gaps in how communities use the most recent assessments of sea level rise in their policy decisions.
A new study using high-resolution land elevation data finds the biggest increases in inundation will occur after the first 2 meters of sea level rise, covering more than twice as much land as older elevation models predicted. Coastal communities have less time to prepare for sea level rise than expected.
A team of researchers found that coastal habitats can adapt to rapid sea-level rise by utilizing abundant sediment, which can help salt marshes survive. The study's key finding highlights the importance of re-infusing sediment into estuary systems when dredging is necessary.
A new study reveals that recent high temperatures on the Greenland ice sheet are unique compared to the past millennium. The researchers updated existing ice core data with information from the most recent decades, showing a warming trend of 1.5 degrees Celsius above the long-term average.
The years 2001 to 2011 were the warmest in the last thousand years, with temperatures 1.5 °C higher than in the 20th century at high elevations of the Greenland Ice Sheet. This warming is surprisingly pronounced and decoupled from the rest of the Arctic.
New research from the University of Sheffield reveals genetically modifying rice to reduce stomata can make it more salt-resistant and survive in environments with high salt levels. This adaptation could help tackle food insecurity caused by climate change.
A new study found that glaciers are losing mass at a rate higher than previously estimated, with small glaciers being the most impacted. By 2100, 49% of the world's glaciers could disappear due to global warming, leading to a 9-cm sea level rise under 1.5°C conditions.
Researchers have found that a weak ocean gyre near the Thwaites Ice Shelf allows more warm water to access its base, causing it to melt. This process is driven by waters from nearby melting ice shelves and can impact the stability of adjacent ice shelves, contributing to global sea-level rise.
Research shows that even optimistic temperature targets can lead to catastrophic sea-level rise, disproportionately affecting low-lying nations. An interdisciplinary team highlights the need for justice-focused policies to minimize impacts of sea-level rise.
Researchers used high-resolution radar systems to reconstruct past ice streams in Greenland, revealing they can 'shut down' rapidly. This insight offers new information on the future behavior of ice streams and how it affects sea-level rise predictions.
A new study found that 39 out of 43 California's coastal airports have assets exposed to projected flooding by 2100. Sixteen airports have assets within their boundaries, while 23 have assets outside their jurisdiction at risk from flooding. The study highlights the need for collaborative climate adaptation plans to address this issue.
A new study models likely future cliff retreat rates of two rock coasts in the UK, finding that rock coasts are likely to retreat at a rate not seen for 3,000-5,000 years. The researchers predict that rock coast cliffs will retreat by at least 10-22 meters inland due to accelerating sea level rise.
A new study combining GPS, satellite data, and numerical modelling indicates that existing models have underestimated ice loss from northeast Greenland, which could contribute up to 15.5mm to global sea levels by 2100. The Northeast Greenland Ice Stream's contribution will be six times greater than previously thought.
The discussion focused on the impact of ocean acidification, compound events, sea-level rise, and climate injustice, with experts highlighting the need for youth involvement in decision-making. The panel agreed on the urgent need for climate action ahead of COP27, emphasizing cooperation between nations to mitigate the crisis.
Researchers used drones to monitor Waikīkī Beach, finding that wave energy from south swells and trade-wind generated waves drive erosion and accretion. The studies provide insights into beach behavior and help inform management of the coastline for ecological, societal, and economic sustainability.
As sea levels rise, groundwater tables are increasing in coastal areas, causing unsaturated soils to shrink and leading to insufficient filtration for wastewater treatment. This can result in mixture of treated and untreated waste getting up to the surface, posing a health hazard to residents.
A Harvard T.H. Chan School of Public Health study found that hundreds of hospitals on the Atlantic and Gulf Coasts are at risk of flooding from Category 1-4 storms, with sea level rise expected to increase this risk by 22% this century. The study highlights the need for coastal hospitals to prepare for greater risks in the future.
A team of international scientists found that many densely populated coastal cities worldwide are at risk from sea level rise due to land subsidence. The study used satellite images to estimate the rate of land sinking in 48 cities, with median speeds ranging from 16.2mm/year to 43mm/year.
A new study examines the impact of sea level rise on building foundations and proposes a method for inspection and repair to lower costs. The researchers estimate that the annual repair cost for foundations in Mobile, Alabama, could total $90 million by 2100.
A new study identifies areas in Antarctica's East region that could significantly contribute to sea-level rise if they undergo basal thaw. The researchers used numerical ice sheet models to simulate temperature changes at the base of the ice sheet, revealing regions such as Enderby-Kemp and George V Land as most susceptible to thawing.
Researchers warn that climate change will increase uncertainty in international law governing maritime zones, affecting small island states. Technologies like GPS and satellite bathmetry may help solidify claims, but more data is needed to accurately delineate existing boundaries.
Scientists at Hokkaido University have quantified glacier mass loss on Kamchatka Peninsula, revealing a total ice loss of 4.9 billion tons between 2000 and 2016. Rising temperatures are driving this change, which contributes to global sea level rise.