Arctic ice management

Desch, S. J.; Smith, N.; Groppi, Christopher; Vargas, Perry B.; Jackson, Rebecca; Kalyaan, Anusha; Nguyen, Peter V.; Probst, L. W.; Rubin, M.; Singleton, Heather; Spacek, Alexander; Truitt, Amanda; Zaw, Pye Pye; Hartnett, Hilairy E.

doi:10.1002/2016ef000410

Cited by 38 publications

(40 citation statements)

References 60 publications

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“…Others argue that it might be possible to chill just the north, for instance by artificially whitening the Arctic Ocean with light-coloured floating particles to reflect sunlight. A study 9 this year suggested installing wind-powered pumps to bring water to the surface in winter, where it would freeze, forming thicker ice.…”

Section: Global Coolingmentioning

confidence: 99%

Arctic 2.0: What happens after all the ice goes?

Rosén¹

2017

Nature

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Section: Global Coolingmentioning

confidence: 99%

Arctic 2.0: What happens after all the ice goes?

Rosén¹

2017

Nature

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“…Several climate engineering approaches that focus on the Arctic sea ice cover and the positive ice‐albedo feedback have been proposed (Cvijanovic et al, ; Desch et al, ; Field et al, ; Mengis et al, ; Seitz, ). The Arctic Ice Management (AIM) strategy put forward in Desch et al (, D17 hereafter), which attracted the attention of the scientific community and the media alike (rated within the top 5% of all research output; Altmetric Attention Score, ), entails the large‐scale employment of wind‐driven pumps that spread seawater on the ice surface in the winter months. The sea ice and the snow that is accumulated over it are materials with low thermal conductivity compared to the ocean water.…”

Section: Introductionmentioning

confidence: 99%

Sea Ice Targeted Geoengineering Can Delay Arctic Sea Ice Decline but not Global Warming

Zampieri

Goessling

2019

Earth's Future

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To counteract global warming, a geoengineering approach that aims at intervening in the Arctic ice-albedo feedback has been proposed. A large number of wind-driven pumps shall spread seawater on the surface in winter to enhance ice growth, allowing more ice to survive the summer melt. We test this idea with a coupled climate model by modifying the surface exchange processes such that the physical effect of the pumps is simulated. Based on experiments with RCP 8.5 scenario forcing, we find that it is possible to keep the late-summer sea ice cover at the current extent for the next ∼60 years. The increased ice extent is accompanied by significant Arctic late-summer cooling by ∼1.3 K on average north of the polar circle (2021-2060). However, this cooling is not conveyed to lower latitudes. Moreover, the Arctic experiences substantial winter warming in regions with active pumps. The global annual-mean near-surface air temperature is reduced by only 0.02 K (2021-2060). Our results cast doubt on the potential of sea ice targeted geoengineering to mitigate climate change. contributed equally to this work. Key Points: • Sea ice targeted geoengineering allows to keep the late-summer sea ice cover at the current extent for the next ∼60 years • The Arctic summer cooling is not conveyed to lower latitudes and comes at the price of Arctic winter warming • Our results cast doubt on the potential of Arctic Ice Management to mitigate climate change Supporting Information: • Supporting Information S1

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“…Other geoengineering solutions propose to reverse the melting of the Arctic sea ice, by pumping seawater from under the Arctic ice cover to the top of it [12,13]. Figure 1 represents a barge designed to increase the thickness of the Arctic ice cover.…”

Section: Introductionmentioning

confidence: 99%

Cooling down the world oceans and the earth by enhancing the North Atlantic Ocean current

et al. 2019

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The world is going through intensive changes due to global warming. It is well known that the reduction in ice cover in the Arctic Ocean further contributes to increasing the atmospheric Arctic temperature due to the reduction of the albedo effect and increase in heat absorbed by the ocean's surface. The Arctic ice cover also works like an insulation sheet, keeping the heat in the ocean from dissipating into the cold Arctic atmosphere. Increasing the salinity of the Arctic Ocean surface would allow the warmer and less salty North Atlantic Ocean current to flow on the surface of the Arctic Ocean considerably increasing the temperature of the Arctic atmosphere and release the ocean heat trapped under the ice. This paper argues that if the North Atlantic Ocean current could maintain the Arctic Ocean ice-free during the winter, the longwave radiation heat loss into space would be larger than the increase in heat absorption due to the albedo effect. This paper presents details of the fundamentals of the Arctic Ocean circulation and presents three possible approaches for increasing the salinity of the surface water of the Arctic Ocean. It then discusses that increasing the salinity of the Arctic Ocean would warm the atmosphere of the Arctic region, but cool down the oceans and possibly the Earth. However, it might take thousands of years for the effects of cooling the oceans to cool the global average atmospheric temperature.

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Arctic ice management

Cited by 38 publications

References 60 publications

Arctic 2.0: What happens after all the ice goes?

Arctic 2.0: What happens after all the ice goes?

Sea Ice Targeted Geoengineering Can Delay Arctic Sea Ice Decline but not Global Warming

Cooling down the world oceans and the earth by enhancing the North Atlantic Ocean current

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