Ice cores provide first documentation of rapid Antarctic ice loss in the past

Researchers from the University of Cambridge and the British Antarctic Survey have uncovered the first direct evidence that the West Antarctic Ice Sheet shrunk suddenly and dramatically at the…Continue readingIce cores provide first documentation of rapid Antarctic ice loss in the past

Currently stable parts of East Antarctica may be closer to melting than anyone has realized

In a warming climate, meltwater from Antarctica is expected to contribute significantly to rising seas. For the most part, though, research has been focused on West Antarctica, in places…Continue readingCurrently stable parts of East Antarctica may be closer to melting than anyone has realized

Ice sheet collapse closer than thought

How the West Antarctic Ice Sheet (WAIS) responded to warmer climates in the geologic past has obvious relevance to our understanding of what its future could be as global…Continue readingIce sheet collapse closer than thought

Climate tipping points are nearer than you think. Our new report warns of catastrophic risk.

Most people expect that if a system, like someone’s body, an ecosystem, or part of the climate system, becomes stressed, it’ll respond fairly predictably—double the pressure, double the impact,…Continue readingClimate tipping points are nearer than you think. Our new report warns of catastrophic risk.

Earth on verge of five catastrophic climate tipping points, scientists warn

Many of the gravest threats to humanity are drawing closer, as carbon pollution heats the planet to ever more dangerous levels, scientists have warned. Five important natural thresholds already…Continue readingEarth on verge of five catastrophic climate tipping points, scientists warn

Rapid ice melt in west Antarctica now inevitable

Accelerated ice melt in west Antarctica is inevitable for the rest of the century no matter how much carbon emissions are cut, research indicates. The implications for sea level…Continue readingRapid ice melt in west Antarctica now inevitable

Antarctic sea ice shrinks to lowest annual maximum level on record

Antarctica has likely broken a new record for the lowest annual maximum amount of sea ice around the continent, beating the previous low by a million square kilometres. The…Continue readingAntarctic sea ice shrinks to lowest annual maximum level on record

Devastatingly low Antarctic sea ice may be the ‘new abnormal,’ study warns

Sea ice insulates the ocean, reflects heat, drives currents, supports ecosystems and protects ice shelves. It also has an annual seasonal cycle—some of the ice melts, then freezes again.…Continue readingDevastatingly low Antarctic sea ice may be the ‘new abnormal,’ study warns

Antarctica warming much faster than models predicted in ‘deeply concerning’ sign for sea levels

Antarctica is likely warming at almost twice the rate of the rest of the world and faster than climate change models are predicting, with potentially far-reaching implications for global…Continue readingAntarctica warming much faster than models predicted in ‘deeply concerning’ sign for sea levels

International report confirms record-high greenhouse gases, global sea levels in 2022

Greenhouse gas concentrations, global sea level and ocean heat content reached record highs in 2022, according to the 33rd annual State of the Climate report. “People are causing the…Continue readingInternational report confirms record-high greenhouse gases, global sea levels in 2022

I have studied emperor penguins for 30 years. We may witness their demise in our lifetime

Being cautious by nature, scientists warned that in the next few decades the global emperor population will suffer significant losses. This fate appeared a long way in the future,…Continue readingI have studied emperor penguins for 30 years. We may witness their demise in our lifetime

Warming decimates Antarctica’s emperor penguin chicks

Helpless emperor penguin chicks perished at multiple breeding grounds in West Antarctica late last year, drowning or freezing to death when sea ice eroded by global warming gave way…Continue readingWarming decimates Antarctica’s emperor penguin chicks

Missing ice and bleached coral: the sudden warming of the oceans

Over the past few weeks, a large-scale rescue operation has been under way off the coast and keys of Florida. It began as water temperatures were rising towards a…Continue readingMissing ice and bleached coral: the sudden warming of the oceans

No quick fix to reverse ‘astonishing’ Antarctic sea ice loss

Sea ice in the Antarctic region fell to a record low this year as a result of rising global temperatures and there is no quick fix to reverse the…Continue readingNo quick fix to reverse ‘astonishing’ Antarctic sea ice loss

Antarctica’s heatwaves are a warning to humanity – and we have only a narrow window to save the planet

Antarctica is currently experiencing dramatic changes at unprecedented rates, marked by repeated extreme events. These include circum-Antarctic summer heatwaves and an autumn heatwave last year, with temperatures soaring up…Continue readingAntarctica’s heatwaves are a warning to humanity – and we have only a narrow window to save the planet

Scientists are freaking out about surging temperatures. Why aren’t politicians? 

The beginning of July marked the planet’s hottest week in recorded history. Last month was the warmest-ever June. The arrival of a strong El Niño is likely to push…Continue readingScientists are freaking out about surging temperatures. Why aren’t politicians? 

Last week the hottest worldwide on record: UN

“The world just had the hottest week on record, according to preliminary data,” the WMO said in a statement, after climate change and the early stages of the El…Continue readingLast week the hottest worldwide on record: UN

Fractured foundations: How Antarctica’s ‘landfast’ ice is dwindling and why that’s bad news

Much of the ice lost in 2022 had been present since 2000, when high-quality records began. If this trend persists, the consequences for the climate and for Southern Ocean…Continue readingFractured foundations: How Antarctica’s ‘landfast’ ice is dwindling and why that’s bad news

Record low Antarctic sea ice levels worry scientists

Antarctic sea ice reached a record low for the month of June, increasing calls from scientists to intensify research and monitoring of the Earth’s polar ice caps. Since 2016,…Continue readingRecord low Antarctic sea ice levels worry scientists

Antarctic tipping points: The irreversible changes to come if we fail to keep warming below 2˚C

The slow-down of the Southern Ocean circulation, a dramatic drop in the extent of sea ice and unprecedented heatwaves are all raising concerns that Antarctica may be approaching tipping…Continue readingAntarctic tipping points: The irreversible changes to come if we fail to keep warming below 2˚C

Dangerous slowing of Antarctic ocean circulation sooner than expected

“Our data show the impacts of climate change are running ahead of schedule,” said lead author Kathryn Gunn, of the Australian Science agency CSIRO and Britain’s Southampton University. The…Continue readingDangerous slowing of Antarctic ocean circulation sooner than expected

Antarctic alarm bells: Observations reveal deep ocean currents are slowing earlier than predicted

We found melting of Antarctic ice is disrupting the formation of Antarctic bottom water. The meltwater makes Antarctic surface waters fresher, less dense, and therefore less likely to sink.…Continue readingAntarctic alarm bells: Observations reveal deep ocean currents are slowing earlier than predicted

Researchers discover a cause of rapid ice melting in Greenland

“These ice-ocean interactions make the glaciers more sensitive to ocean warming,” said senior co-author Eric Rignot, UCI professor of Earth system science and NASA JPL research scientist. “These dynamics…Continue readingResearchers discover a cause of rapid ice melting in Greenland

‘Devastating’ melt of Greenland, Antarctic ice sheets found

The Greenland and Antarctic ice sheets are now losing more than three times as much ice a year as they were 30 years ago, according to a new comprehensive…Continue reading‘Devastating’ melt of Greenland, Antarctic ice sheets found

Antarctica’s heart of ice has skipped a beat: Science briefing calls for action

In 2022 the summer minimum was less than 2 million square km for the first time since satellite records began. This summer, the minimum was even lower—just 1.7 million…Continue readingAntarctica’s heart of ice has skipped a beat: Science briefing calls for action

New Research Sparks Concerns That Ocean Circulation Will Collapse

The groundbreaking modeling study published by Australian and American researchers at the end of March for the first time includes a detailed assessment of the likely impact of melting…Continue readingNew Research Sparks Concerns That Ocean Circulation Will Collapse

Ice sheets can collapse faster than previously thought possible

Ice sheets can retreat up to 600 meters a day during periods of climate warming, 20 times faster than the highest rate of retreat previously measured.Continue readingIce sheets can collapse faster than previously thought possible

Melting Antarctic ice predicted to cause rapid slowdown of deep ocean current by 2050

New research by Australian scientists suggests 40% slowdown in just three decades could alter world’s climate for centuries.Continue readingMelting Antarctic ice predicted to cause rapid slowdown of deep ocean current by 2050

‘Everyone should be concerned’: Antarctic sea ice reaches lowest levels ever recorded

Continue reading‘Everyone should be concerned’: Antarctic sea ice reaches lowest levels ever recorded

Sea ice in Antarctic at record low: US data center

Continue readingSea ice in Antarctic at record low: US data center

Satellites observe speed-up of glaciers on the Antarctic peninsula

Continue readingSatellites observe speed-up of glaciers on the Antarctic peninsula

Climate, ice sheets & sea level: the news is not good

Parts of Earth’s ice sheets that could lift global oceans by meters will likely crumble with another half degree Celsius of warming, and are fragile in ways not previously…Continue readingClimate, ice sheets & sea level: the news is not good

Antarctic ice hits record low for January: climate monitor

Continue readingAntarctic ice hits record low for January: climate monitor

Antarctica’s emperor penguins could be extinct by 2100. And other species may follow if we don’t act

Continue readingAntarctica’s emperor penguins could be extinct by 2100. And other species may follow if we don’t act

Why scientists are using the word scary over the climate crisis

More and more scientists are now admitting publicly that they are scared by the recent climate extremes, such as the floods in Pakistan and west Africa, the droughts and…Continue readingWhy scientists are using the word scary over the climate crisis

Scientists discover mechanism that can cause collapse of great Atlantic circulation system

The Atlantic meridional overturning circulation (AMOC), a system of ocean currents that carry warm water from the tropics into the North Atlantic, and transport cold water from the northern…Continue readingScientists discover mechanism that can cause collapse of great Atlantic circulation system

Scientists expose vulnerabilities of critical Antarctic ice shelf

Pine Island Ice Shelf in West Antarctica, which holds back enough ice to raise sea levels by 0.5 meters, could be more vulnerable to complete disintegration than previously thought.…Continue readingScientists expose vulnerabilities of critical Antarctic ice shelf

Major sea-level rise is ‘now inevitable’

Major sea-level rise from the melting of the Greenland ice cap is now inevitable, scientists have found, even if the fossil fuel burning that is driving the climate crisis…Continue readingMajor sea-level rise is ‘now inevitable’

World’s biggest ice sheet could cause massive sea rise without action

The world’s biggest ice sheet could cause “several meters” of sea-level rise over centuries if the global temperature rises more than 2°C, according to a British study. Researchers at…Continue readingWorld’s biggest ice sheet could cause massive sea rise without action

Ice shelves hold back Antarctica’s glaciers from adding to sea levels, but they’re crumbling

As Antarctica’s slow rivers of ice hit the sea, they float, forming ice shelves. These shelves extend the glaciers into the ocean until they calve into icebergs. But they…Continue readingIce shelves hold back Antarctica’s glaciers from adding to sea levels, but they’re crumbling

Troubling new research about East Antarctica

The eastern two thirds of Antarctica is covered by an ice sheet so large that if it melted the sea would rise by 52 meters (170 feet). An estimated…Continue readingTroubling new research about East Antarctica

Antarctic is changing dramatically, with global consequences

Antarctic ice sheets are melting, the continent’s climate is changing, and the Southern Ocean is warming, becoming more acidic and losing oxygen. Locally, changing climates are already affecting the…Continue readingAntarctic is changing dramatically, with global consequences

First evidence of microplastics in Antarctic snow

Most people see Antarctica as a pristine, relatively untouched place, but a new study published today has revealed the presence of microplastics – plastic pieces much smaller than a…Continue readingFirst evidence of microplastics in Antarctic snow

It’s 70˚F (40˚C) warmer than normal in eastern Antarctica. Scientists are flabbergasted.

The coldest location on the planet has experienced an episode of warm weather this week unlike any ever observed, with temperatures over the eastern Antarctic ice sheet soaring 50…Continue readingIt’s 70˚F (40˚C) warmer than normal in eastern Antarctica. Scientists are flabbergasted.

Each Antarctic tourist effectively melts 83 metric tons of snow

The remote continent is becoming increasingly accessible—during the 2019-20 season, the number of sightseeing visitors reached 74,000, with the vast majority travelling by ship. All activity in Antarctica—be it…Continue readingEach Antarctic tourist effectively melts 83 metric tons of snow

Study – Rapid glacier retreat rates observed in West Antarctica

The Pope, Smith and Kohler glaciers, in the Amundsen Sea Embayment of West Antarctica, have experienced enhanced ocean-induced ice-shelf melt, glacier acceleration, ice thinning and grounding-line retreat in the…Continue readingStudy – Rapid glacier retreat rates observed in West Antarctica

Scientist says time is running out for West Antarctic ice sheet

The last time carbon dioxide levels were where they are today, at more than 415 parts per million, was 4 million years ago, and the result of the associated…Continue readingScientist says time is running out for West Antarctic ice sheet

Butressing of Thwaites glacier in Antarctica expected to fail within 10 years

Scientists have discovered a series of worrying weaknesses in the ice shelf holding back one of Antarctica’s most dangerous glaciers, suggesting that this important buttress against sea level rise…Continue readingButressing of Thwaites glacier in Antarctica expected to fail within 10 years

Antarctic ice sheet destabilized within a decade

After the natural warming that followed the last Ice Age, there were repeated periods when masses of icebergs broke off from Antarctica into the Southern Ocean. A new data-model…Continue readingAntarctic ice sheet destabilized within a decade