Tag Archives: Greenland

‘Cliff-Like’ Collapse of Critical Current System More Likely Than Thought: Study

“The new study adds significantly to the rising concern about an AMOC collapse in the not-too-distant future,” said one scientist. “We will ignore this at our peril.”

By Brett Wilkins. Published 2-10-2024 by Common Dreams

Human-driven planetary warming threatens to collapse a system of currents in the Atlantic Ocean that regulate and impact weather across the globe. Image: Felton Davis/flickr/CC

A study published Friday warned that a systemic collapse of the Atlantic Ocean currents driving warm water from the tropics toward Europe could be more likely than researchers previously estimated—an event that would send temperatures plummeting in much of the continent.

The Atlantic Meridional Overturning Circulation (AMOC), which includes the Gulf Stream, could be headed for a relatively sudden shutdown that René Van Western, who led the Dutch study published in Science Advances, called “cliff-like.”

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‘Bad News’: Unexpected Melting of Greenland Glacier Could Double Sea-Level Rise Projections

The way that the Petermann Glacier in Northwest Greenland is melting indicates that current models are too conservative.

By Olivia Rosane. Published 5-8-2023 by Common Dreams

In the center of this NASA photograph taken in 2012, Petermann Glacier in northwest Greenland gradually moves toward the ocean, with large segments breaking off and drifting away as icebergs. Researchers at UCI and NASA JPL used satellite data from three European missions to learn how warm ocean water is causing the migration of the glacier’s grounding line, leading to its rapid deterioration. (Photo: NASA)

A glacier in the north of Greenland is melting faster and in a different way than scientists previously thought, and this has troubling implications for the future speed of global sea-level rise.

The new discovery was published in the Proceedings of the National Academy of Sciences Monday. The scientists found that warming ocean water had melted a cavity in the bottom of Petermann Glacier taller than the Washington Monument, as The Associated Press reported. If other glaciers in Greenland and Antarctica behave the same way, it could double predictions for how quickly the burning of fossil fuels will melt ice and raise sea levels.

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Temporarily Passing Paris Climate Targets Could ‘Significantly’ Raise Tipping Point Risk: Study

“To effectively prevent all tipping risks, the global mean temperature increase would need to be limited to no more than 1°C—we are currently already at about 1.2°C,” noted one scientist.

By Jessica Corbett  Published 12-23-2022 by Common Dreams

Fire in the Amazon Photo: Luísa Mota/flickr/CC

Surpassing the global temperature targets of the Paris climate agreement, even temporarily, could dramatically increase the risk of the world experiencing dangerous “tipping points,” according to research published Friday.

The Intergovernmental Panel on Climate Change (IPCC) defines tipping points as “critical thresholds in a system that, when exceeded, can lead to a significant change in the state of the system, often with an understanding that the change is irreversible.” Continue reading

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Greenland’s government bans oil drilling, leads indigenous resistance to extractive capitalism

The young indigenous leadership of Múte Bourup Egede is battling for green sovereignty in a time of climate collapse

By Adam Ramsay and Aaron White.  Published 11-10-2021 by openDemocracy

Secretary of State Antony Blinken with Greenland Prime Minister Múte Bourup Egede. Photo: Secretary Antony Blinken/Twitter

 

In 2016, Greenland’s then minister responsible for economic development, Vittus Qujaukitsoq, welcomed the appointment of Rex Tillerson, the former CEO of Exxon Mobil, as US secretary of state. Despite representing the centre-Left party Siumut (Forward) and being surrounded by some of the most visible consequences of the warming world, Qujaukitsoq and his colleagues saw the growing potential for mining and drilling brought by the melting glaciers on the world’s biggest island as an opportunity to bring in the cash which would allow the long-desired independence from Denmark. Continue reading

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Planet’s Vital Signs Are Reaching Dangerous ‘Tipping Points’ Amid Climate Crisis, Scientists Warn

“We need to stop treating the climate emergency as a stand-alone issue—global heating is not the sole symptom of our stressed Earth system.”

By Julia Conley, staff writer for Common Dreams. Published 7-28-2021

Human activity may be pushing the climate beyond dangerous ‘tipping points,’ say 14,000 scientists. As the extreme drought emergency continues in California, historically low water levels are visible at Lake Oroville on July 22, 2021 in Oroville, California. Photo: NOAA

More than a year after the Covid-19 pandemic shut down economies around the world and sharply reduced worldwide travel—sparking speculation among some that emissions would plummet as a result—a coalition of scientists said in a paper published Wednesday that the planet is nonetheless reaching multiple “tipping points,” with levels of sea ice melt, deforestation, and other markers revealing that urgent action is needed to mitigate the climate emergency.

“The extreme climate events and patterns that we’ve witnessed over the last several years — not to mention the last several weeks — highlight the heightened urgency with which we must address the climate crisis,” said Philip Duffy, co-author of the study and executive director of the Woodwell Climate Research Center in Massachusetts. Continue reading

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Deep Trouble for Arctic and Beyond: NOAA Climate Report Warns of Feedback Loop That ‘May Already Be Underway’

“If this were an annual health check-up, I think we’d have to say that the Arctic is chronically sick and getting worse.”

By Jessica Corbett, staff writer for Common Dreams. Published 12-11-2019

The National Oceanic and Atmospheric Administration’s 14th annual Arctic Report Card includes a section that features commentary from Indigenous Peoples living along the Bering Sea. (Photo: NOAA/YouTube)

In addition to warning that “the feedback to accelerating climate change may already be underway,” the U.S. government’s latest report on conditions in the Arctic reveals that temperatures in the region are persistently warming, leading to land and sea ice melting, permafrost thawing, species being threatened with extinction, and putting Native communities at risk.

The National Oceanic and Atmospheric Administration on Tuesday published its 14th annual Arctic Report Card (pdf), which warns that “the Arctic marine ecosystem and the communities that depend upon it continue to experience unprecedented changes as a result of warming air temperatures, declining sea ice, and warming waters.” Continue reading

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UN Climate Report on Oceans, Frozen Regions Warns ‘Unprecedented Transitions in All Aspects of Society’ Needed to Sustain Life on Earth

Describing scientists’ latest warnings as “chilling and compelling,” environmentalists called for “enacting radical policies” that protect marine ecosystems and fully phase out fossil fuels.

By Jessica Corbett, staff writer for Common Dreams. Published 9-25-2019

An iceberg floats in Disko Bay, near Ilulissat, Greenland, on July 24, 2015. (Photo: Saskia Madlener/NASA/Flickr/cc)

A landmark United Nations climate report published Wednesday details the observed and anticipated future impacts of planet-heating emissions from human activity on the world’s oceans and frozen zones—and warns of the emerging consequences for humanity, marine ecosystems, and the global environment.

The Special Report on the Ocean and Cryosphere in a Changing Climate (SROCC) is a product of the Intergovernmental Panel on Climate Change (IPCC), a U.N. body that assesses the latest science related to the human-caused climate crisis. It follows recent IPCC reports on the consequences of 1.5°C of global warming above pre-industrial levels and the necessity of reforming land use practices worldwide. Continue reading

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Global Temps Continue to Soar Upward as NOAA Confirms July 2019 Was Hottest Month Since Records Began in 1880

“We are seeing record after record after record.”

By Julia Conley, staff writer for Common Dreams. Published 8-15-2019

NOAA revealed Thursday that July 2019 was the hottest month on record since the U.S. government began recording temperature date in the lat 19th century. Photo: Martin/flickr

As climate scientists raise alarm over hotter and hotter global temperatures, a top U.S. weather agency reported on Thursday that July 2019 was the hottest month the planet has ever experienced since the government began recording global temperatures nearly 140 years ago.

NOAA’s monthly Global Climate Report revealed that last month the average worldwide temperature was 1.71 degrees Fahrenheit above the average temperature observed in the 20th century. Continue reading

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‘The Changes Are Really Accelerating’: Alaska at Record Warm While Greenland Sees Major Ice Melt

“The numbers needing relocation will grow, the costs are going up, and people’s lives and cultural practices will be impacted.”

By Eoin Higgins, staff writer for Common Dreams. Published 6-14-2019

The Sawyer Glacier in Alaska, July 2016. The Arctic is enduring unprecedented warming this year, affecting Alaska and Greenland specifically. (Photo: Ian Keating, Flickr)

The climate crisis is rapidly warming the Arctic, and the effects are being felt from Alaska to Greenland.

The northernmost point on the planet is heating up more quickly than any other region in the world. The reason for this warming is ice–albedo feedback: as ice melts it opens up land and sea to the sun, which then absorb more heat that would have been bounced off by the ice, leading to more warming. It’s a vicious circle of warmth that’s changing the environment at the north pole.

In Alaska, the crisis led this year to the warmest spring on record for the state; one city, Akiak, may turn into an island due to swelling riverbanks and erosion exacerbated by thawing permafrost and ice melt. Massachusetts-based Woods Hole Research Center scientist Susan Natali told The Guardian that what’s happening in Akiak is just an indicator of the danger posed to Alaska by the climate crisis. Continue reading

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These Climate Scientists’ Tweets About the Unusually Warm Arctic Might Scare Your Pants Off

Cities in Europe, meanwhile, are getting hit with unusually cold temperatures and snowfall. That’s days after the U.S. East Coast had record highs.

By Andrea Germanos, staff writer for CommonDreams. Published 2-26-2018

People take part in the Women’s March in San Francisco on Jan. 21, 2018. (Photo: Kathy Knorr/flickr/cc)bluebird womens march Women’s March SF Jan 21 2018

“Shocking,” “absolutely astonishing,” and “remarkable.”

That’s how climate scientists are describing the recent unusually warm temperatures in the Arctic.

As the Washington Post reported last week, the region is “stewing in temperatures more than 45 degrees (F) above normal. This latest huge temperature spike in the Arctic is another striking indicator of its rapidly transforming climate.” Continue reading

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