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MidnightMax

"GloBULL Warmers' claimed that "goreBULL Warming" was causing the Greenland Ice Sheet to melt. Turns out it's PURPLE ALGAE and NOT "goreBULL Warming" after all!! ANOTHER one bites the climate change dust!!

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Purple algae are making the western Greenland Ice Sheet melt faster, as the algae darken the ice surface and make it absorb more sunlight

 

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre

This photo shows the change in surface darkness as the cold dry white snow (left side of of image) starts melting to grey (centre of the image), to reveal the dark ice underneath (right side of image). The dots on the left are people to give a sense of the scale. Credit Laura Halbach

This photo shows the change in surface darkness as the cold dry white snow (left side of of image) starts melting to grey (centre of the image), to reveal the dark ice underneath (right side of image). The dots on the left are people to give a sense of the scale. Credit Laura Halbach

 

The ERC (European Research Council) has awarded an €11 million Euro Synergy grant called DEEP PURPLE to Liane G. Benning at the German Research Centre for Geosciences (GFZ) Potsdam, Germany, Alexandre Anesio at Aarhus University, Denmark and Martyn Tranter at University of Bristol, UK. Their common goal is to examine over the next six years (2020-2026) the role of glacier algae in progressively darkening the Greenland Ice Sheet surface in a warming climate.

 

The three researchers have already changed our understanding of why the ice darkens during the melt season by identifying the purple-pigmented ice algal blooms in the ice surface. These glacier algae are pigmented deep purple to shield their vital elements from the intense UV radiation in sunlight. During the melt season there are so many of these deep purple algae that they look as black as the soot from tundra fires. They form a dark band that has been progressively growing down the western side of the Greenland Ice Sheet during the summer melt season for the last 20 years, causing increased melting of the darkening ice.

 

Just why these glacier algae grow so densely is not really known at the moment, and neither is whether they will grow in the new melt zones on the ice sheet surface, to the north and to the ice sheet interior.

 

Project DEEP PURPLE

Questions such as this need answering if future sea level rise is to be predicted accurately, since Greenland melt is a major driver of current sea level rise.

 

Project DEEP PURPLE aims to answer these questions over the next six years, combining curisoity driven science about how the glacier algae grow and interact with their icy habitat, and societally relevant research into the processes that lead to ice surface darkening that are needed by ice melt modellers.

 

The scientists will work around many different sites in Greenland, making measurements of surface darkening, glacier algae density, how much soot and dust the algae trap on the surface and the physical properties of the melting ice surface to finally understand, how biological darkening occurs, and to predict where and when it will occur in the future.

 

Amazing opportunity

This type of research needs the expertise of microbiologists, glaciologists and particulate biogeochemists, working in synergy, because only with a knowledge of all three aspects of melting ice surfaces can biological darkening be understood. DEEP PURPLE will host a team of 9 post doctoral researchers, 6 PhD students along with the three PIs.

 

Liane G. Benning states: “I am looking forward to the opportunity to examine the complex interactions between the different light-absorbing particulates – microbes, minerals and soot – down to the smallest detail. As the ice melting season becomes longer and longer and the darkening of the ice surface by algae covers greater proportions of the ice sheet, it is all the more important to understand the processes and mechanisms behind it. In order to quantify how significantly the melting Greenland ice contributes to global sea-level rise.”

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57 minutes ago, MidnightMax said:

"GloBULL Warmers' claimed that "goreBULL Warming" was causing the Greenland Ice Sheet to melt. Turns out it's PURPLE ALGAE and NOT "goreBULL Warming" after all!! ANOTHER one bites the climate change dust!!

 

 

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Holy CRAP.....how could everyone-ELSE be SO WRONG??!!!!!

 

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"While I’m not a degreed climate scientist, I’ll point out that neither is Al Gore......."

 

Disclaimer: Willard Anthony Watts is an American blogger who runs Watts Up With That?, a popular climate change denial blog that opposes the scientific consensus on climate change.

 

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5 hours ago, MidnightMax said:

Purple algae are making the western Greenland Ice Sheet melt FASTER, as the algae darken the ice surface and make it absorb more sunlight

 

Their common goal is to examine over the next six years (2020-2026) the role of glacier algae in progressively darkening the Greenland Ice Sheet surface IN A WARMING CLIMATE.

 

The three researchers have already changed our understanding of why the ice darkens during the melt season by identifying the purple-pigmented ice algal blooms in the ice surface. These glacier algae are pigmented deep purple to shield their vital elements from the intense UV radiation in sunlight. During the melt season there are so many of these deep purple algae that they look as black as the soot from tundra fires. They form a dark band that has been PROGRESSIVELY GROWING down the western side of the Greenland Ice Sheet during the summer melt season FOR THE LAST TWENTY YEARS, causing increased melting of the darkening ice.

 

Just why these glacier algae grow so densely is not really known at the moment, and neither is whether they will grow in the NEW MELT ZONES on the ice sheet surface, to the north and TO THE ICE SHEET INTERIOR.

 

Questions such as this need answering if future sea level rise is to be predicted accurately, SINCE GREENLAND MELT IS A MAJOR DRIVER OF CURRENT SEA LEVEL RISE.

 

Liane G. Benning states: “I am looking forward to the opportunity to examine the complex interactions between the different light-absorbing particulates – microbes, minerals and soot – down to the smallest detail. AS THE ICE MELTING SEASON BECOMES LONGER and the darkening of the ice surface by algae covers greater proportions of the ice sheet, it is all the more important to understand the processes and mechanisms behind it. In order to quantify HOW SIGNIFICANTLY THE MELTING GREENLAND ICE IS CONTRIBUTING TO GLOBAL SEA-LEVEL RISE.”

 

And the MuddleMoron once again posts a bullshyt thread with a totally bogus title that is totally unsupported by the scientific information he quoted. Why? Sheer stupidity and the obvious inability to comprehend any scientific information whatsoever is a hallmark of dimwitted deranged denier cult dingbats like the MuddledMoron.

 

As the article makes quite clear, global warming is already melting the Greenland ice sheet and causing global sea levels to rise....and the melt season is growing longer every year. The growth of a dark band of algae along the western side of the ice sheet is a recent phenomena that has only been observed for the last twenty years, so it is also very probably linked to the rapidly warming climate, particularly in the Arctic, which is heating up twice as fast as lower latitudes. The dark algae band only makes the ice melt a bit faster.

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7 hours ago, MidnightMax said:

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ANOTHER one bites the climate change dust!!

 

 

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Don't forget your "chaser"!!

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