Sea Levels
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United Nations Warns Of 'Deepening Crisis' In Oceans, Urges Action
Oceans are in a "deepening crisis" that demands urgent global action, a major UN report warned Monday, with seas warming and rising faster, ice cover shrinking...
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Over 100 Million Buildings Worldwide Could Face Flooding Risk From Rising Seas, Study Warns
A McGill-led study warns that rising sea levels could endanger more than 100 million buildings across the Global South, with coastal infrastructure in Africa, Southeast Asia, and the Americas most at risk. The findings highlight the urgent need for emissions cuts and coastal adaptation.
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Greenland's Melting Glaciers Feed Ocean Life, Study Finds
A new NASA-led study reveals that Greenland’s melting glaciers are fueling life in the Arctic Ocean. Each summer, massive freshwater plumes from glaciers like Jakobshavn drag deep-sea nutrients upward, boosting phytoplankton growth by up to 40%. These microscopic organisms form the base of the marine food web and play a key role in carbon absorpt...
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What Ancient Ice Sheets Can Tell Us About Future Sea Level Rise
When visiting Godrevy beach on the north Cornish coast, most people look out to sea at the lighthouse, surfers and seals rather than the cliffs behind.
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New Island Forms in Caspian Sea as Water Levels Drop, Russian Scientists Confirm
Russian scientists have verified the existence of a new island in the northern Caspian Sea, first spotted via satellite in late 2024. Located 30 km from Maly Zhemchuzhny Island, the islet appeared as sea levels reached historic lows due to climate change and tectonic shifts. Although researchers couldn’t land due to shallow water, drone images ...
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Southwest Pacific Hit By Unprecedented Marine Heat Waves In 2024: United Nations
Unprecedented heat waves in the Southwest Pacific affected more than 10% of the global ocean surface in 2024, damaging coral reefs and putting the region's last remaining tropical glacier at risk of extinction, the UN's weather body said on Thursday.
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Will Surging Sea Levels Kill The Great Barrier Reef? Here's What Might Help
In the 20th century, global sea level rose faster than at any other time in the past 3,000 years. Its expected to rise even further by 2100, as human-induced climate change intensifies.
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NASA Reports 'Higher Than Expected' Sea Level Rise In 2024
NASA reports a higher-than-expected sea level rise in 2024, primarily due to thermal expansion of seawater, highlighting the urgent need to reduce greenhouse gas emissions to mitigate the devastating impacts of climate change.
-
Antarctic Ice Melt Weakens Strongest Ocean Current, Disrupting Global Circulation
The Antarctic Circumpolar Current, the planet’s most powerful ocean circulation system, could slow by 20 percent by 2050 due to melting Antarctic ice. Researchers suggest that the influx of fresh, cold water is disrupting convection, altering global ocean density. A weaker current may allow warm water to reach Antarctica, accelerating ice loss an...
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Global Sea Ice Cover At Record Low In February Amid Persistent Hot Streak
In February, temperatures spiked up to 11 degrees Celsius above average near the North Pole as the world continued its persistent heat streak, said Europe's climate monitor.
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Seafloor Spreading Slowdown May Have Caused 26–32m Sea Level Drop Over Millions of Years
Between 15 million and 6 million years ago, ocean crust production declined by 35 percent, leading to deeper ocean basins. This geological shift is believed to have caused a sea level drop of 26–32 meters. Research suggests that heat transfer from the mantle to the ocean decreased by 8 percent, potentially altering ocean chemistry. Some studies i...
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Greenland's Ice Sheet Approaches Dangerous Tipping Point Amid Rapid Melting
Greenland’s massive ice sheet is losing ice at an accelerating rate, with scientists warning that a global temperature rise of just 2°C could trigger irreversible collapse. The loss of 230 gigatons of ice per year is the estimated threshold for this tipping point. If melting continues at current rates, sea levels could rise by approximately 7 me...
-
Ocean Warming Rate Quadruples Over Four Decades, Accelerating Climate Change
New research highlights a troubling acceleration in ocean warming, with the rate of temperature rise quadrupling since the 1980s. According to a study in Environmental Research Letters, ocean surface temperatures now rise at 0.27°C per decade, up from 0.06°C. This rapid warming, driven by greenhouse gases like CO2 and methane, is worsening Earth'...
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Study Warns Saltwater Intrusion Threatens Global Coastal Groundwater by 2100
A NASA-DOD study indicates that by 2100, 77% of global coastal aquifers will face saltwater intrusion due to rising sea levels and reduced groundwater recharge. This phenomenon, caused by shifting fresh and saltwater dynamics, threatens water quality, agriculture, and infrastructure. Low-lying regions, including Southeast Asia, the U.S. Eastern Sea...
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Rising Seas To Cost Pacific Island Nations $10 Billion - Their 20-Year GDP
Adapting to a sea level rise of up to 0.5 metres (1.64 feet) will cost the three most vulnerable Pacific atoll nations nearly $10 billion - equivalent to about 20 years of gross domestic product - the World Bank said in a report on Thursday.
-
United Nations Warns Of 'Deepening Crisis' In Oceans, Urges Action
Oceans are in a "deepening crisis" that demands urgent global action, a major UN report warned Monday, with seas warming and rising faster, ice cover shrinking...
-
Over 100 Million Buildings Worldwide Could Face Flooding Risk From Rising Seas, Study Warns
A McGill-led study warns that rising sea levels could endanger more than 100 million buildings across the Global South, with coastal infrastructure in Africa, Southeast Asia, and the Americas most at risk. The findings highlight the urgent need for emissions cuts and coastal adaptation.
-
Greenland's Melting Glaciers Feed Ocean Life, Study Finds
A new NASA-led study reveals that Greenland’s melting glaciers are fueling life in the Arctic Ocean. Each summer, massive freshwater plumes from glaciers like Jakobshavn drag deep-sea nutrients upward, boosting phytoplankton growth by up to 40%. These microscopic organisms form the base of the marine food web and play a key role in carbon absorpt...
-
What Ancient Ice Sheets Can Tell Us About Future Sea Level Rise
When visiting Godrevy beach on the north Cornish coast, most people look out to sea at the lighthouse, surfers and seals rather than the cliffs behind.
-
New Island Forms in Caspian Sea as Water Levels Drop, Russian Scientists Confirm
Russian scientists have verified the existence of a new island in the northern Caspian Sea, first spotted via satellite in late 2024. Located 30 km from Maly Zhemchuzhny Island, the islet appeared as sea levels reached historic lows due to climate change and tectonic shifts. Although researchers couldn’t land due to shallow water, drone images ...
-
Southwest Pacific Hit By Unprecedented Marine Heat Waves In 2024: United Nations
Unprecedented heat waves in the Southwest Pacific affected more than 10% of the global ocean surface in 2024, damaging coral reefs and putting the region's last remaining tropical glacier at risk of extinction, the UN's weather body said on Thursday.
-
Will Surging Sea Levels Kill The Great Barrier Reef? Here's What Might Help
In the 20th century, global sea level rose faster than at any other time in the past 3,000 years. Its expected to rise even further by 2100, as human-induced climate change intensifies.
-
NASA Reports 'Higher Than Expected' Sea Level Rise In 2024
NASA reports a higher-than-expected sea level rise in 2024, primarily due to thermal expansion of seawater, highlighting the urgent need to reduce greenhouse gas emissions to mitigate the devastating impacts of climate change.
-
Antarctic Ice Melt Weakens Strongest Ocean Current, Disrupting Global Circulation
The Antarctic Circumpolar Current, the planet’s most powerful ocean circulation system, could slow by 20 percent by 2050 due to melting Antarctic ice. Researchers suggest that the influx of fresh, cold water is disrupting convection, altering global ocean density. A weaker current may allow warm water to reach Antarctica, accelerating ice loss an...
-
Global Sea Ice Cover At Record Low In February Amid Persistent Hot Streak
In February, temperatures spiked up to 11 degrees Celsius above average near the North Pole as the world continued its persistent heat streak, said Europe's climate monitor.
-
Seafloor Spreading Slowdown May Have Caused 26–32m Sea Level Drop Over Millions of Years
Between 15 million and 6 million years ago, ocean crust production declined by 35 percent, leading to deeper ocean basins. This geological shift is believed to have caused a sea level drop of 26–32 meters. Research suggests that heat transfer from the mantle to the ocean decreased by 8 percent, potentially altering ocean chemistry. Some studies i...
-
Greenland's Ice Sheet Approaches Dangerous Tipping Point Amid Rapid Melting
Greenland’s massive ice sheet is losing ice at an accelerating rate, with scientists warning that a global temperature rise of just 2°C could trigger irreversible collapse. The loss of 230 gigatons of ice per year is the estimated threshold for this tipping point. If melting continues at current rates, sea levels could rise by approximately 7 me...
-
Ocean Warming Rate Quadruples Over Four Decades, Accelerating Climate Change
New research highlights a troubling acceleration in ocean warming, with the rate of temperature rise quadrupling since the 1980s. According to a study in Environmental Research Letters, ocean surface temperatures now rise at 0.27°C per decade, up from 0.06°C. This rapid warming, driven by greenhouse gases like CO2 and methane, is worsening Earth'...
-
Study Warns Saltwater Intrusion Threatens Global Coastal Groundwater by 2100
A NASA-DOD study indicates that by 2100, 77% of global coastal aquifers will face saltwater intrusion due to rising sea levels and reduced groundwater recharge. This phenomenon, caused by shifting fresh and saltwater dynamics, threatens water quality, agriculture, and infrastructure. Low-lying regions, including Southeast Asia, the U.S. Eastern Sea...
-
Rising Seas To Cost Pacific Island Nations $10 Billion - Their 20-Year GDP
Adapting to a sea level rise of up to 0.5 metres (1.64 feet) will cost the three most vulnerable Pacific atoll nations nearly $10 billion - equivalent to about 20 years of gross domestic product - the World Bank said in a report on Thursday.
