Ocean forcing drives glacier retreat in Greenland

by M. Wood et al., Jan 01, 2021 in AAAS OPEN ACCESS


The Greenland Ice Sheet has contributed substantially to sea-level rise over the past few decades. Since 1972, approximately two-thirds of the ice sheet’s contribution to sea-level rise resulted from increased glacier flux with the remaining one-third from anomalous surface melt (1). Before 2000, anomalous ice discharge was the dominant driver of mass loss, but in recent years, increasingly negative surface mass balance anomalies have contributed to a larger proportion of the total mass loss from the ice sheet (1). The acceleration in mass flux has been partially attributed to a warming of subsurface waters around Greenland near the end of the 1990s (2, 3) and increased runoff, resulting in enhanced water mixing and melt at glacier margins, destabilization of terminus regions (4, 5), ice front retreat (6, 7), and, in most cases, accelerated ice flow (8). The increase in flow speed, combined with enhanced surface melt, results in increased glacier thinning, which is conducive to further retreat (9). Other processes may have additionally contributed to the glacier retreat, e.g., increases in basal lubrication, melting of the ice mélange in front of glaciers, or weakening of glacier shear margins, but quantitative evidence about their impact has been limited (1012).

The warming of subsurface waters at the turn of the 21st century was caused by the spreading of ocean heat from the subpolar gyre during a transition in the North Atlantic Oscillation (NAO) from a high positive phase to a low-to-negative phase (3). In this shift, the North Atlantic subpolar gyre expanded, enhancing ocean heat fluxes through the coastal Irminger and West Greenland currents, yielding warmer subsurface waters on the continental shelf of all seven major basins of Greenland (Fig. 1). Since 2010, the NAO has transitioned back to a more positive phase, yielding a relative cooling of the ocean waters, however, not sufficiently to bring back ocean heat fluxes to the levels of the 1990s (13).


by Cap Allon, Jan 25, 2021 in Electroverse

According to the UK Met Office, snowfall in Britain will be a thing of the past by 2040-2060 — a ludicrous, fear-mongering prophesy, and one almost as stupid as the claims made by senior climatologist Dr David Viner of the Climate Research Unit (CRU) of the University of East Anglia.

Back in 2000, and as reported by the Telegraph (since deleted), Viner said: within a few years winter snowfall will become “a very rare and exciting event,” adding that “children just aren’t going to know what snow is.”

Frustratingly, these hacks are never called to task, their mistakes and dud-research seldom analysed or investigated. Instead, the cycle is simply one of rinse and repeat: the global warming cabal call-up their next set of “higher-educated” brainwashees who go on to use the exact same flawed upside down pyramid built on the work of just a few climate modelers to make the exact same tired-old doomsday predictions–such as “the end of snow”.

Just yesterday, January 25, a severe weather warning was in place across a large portion of the UK as heavy snow threatened.

The pow-pow duly arrived early Sunday morning with some regions, particularly those in central England and Wales, registering accumulations of 5+ inches (13+ cm) in just an hour and a half.

Elon Musk Drilling Gas Wells in Texas!

by D. Middleton, Jan 25, 2021 in WUWT

Guest “I was wrong about this guy” by David Middleton

SpaceX Plans to Drill for Natural Gas Near Texas Launchpad
Sergio Chapa
Jan 23 2021

(Bloomberg) — Elon Musk recently moved to Texas, where he launches some of his rockets and is building a battery factory. Now, for good measure, he plans to drill for natural gas in the state.

The billionaire’s SpaceX intends to drill wells close to the company’s Boca Chica launchpad, it was revealed during a Friday hearing before the Railroad Commission of Texas, the state’s energy regulator.

Production has yet to start because of a legal dispute between the SpaceX subsidiary Lone Star Mineral Development and another energy company. Tim George, an attorney representing Lone Star, said at the hearing that SpaceX plans to use the methane it extracts from the ground “in connection with their rocket facility operations.”

While it’s unclear what exactly the gas would be used for, SpaceX plans to utilize super-chilled liquid methane and liquid oxygen as fuel for its Raptor engines. The company’s Starship and Super Heavy vehicles are tested at Boca Chica, and orbital launches are planned for the site.



Study Shows Arctic Sea Ice Reached Lowest Point On Modern Record… In The 1940s, Not Today!

by C. Rotter, Jan 24, 2021 in WUWT

Regular NoTricksZone author Kenneth Richards notes on Twitter

Apparently Arctic sea ice volume was as low in the 1940s as it has been in the 2000s.

And the highest sea ice volume of the last 100 years was about 1979 – the year the Arctic sea ice record begins.


Guillian Van Achter1, Leandro Ponsoni1, François Massonnet1, Thierry Fichefet1, and Vincent Legat2

  • 1Georges Lemaitre Center for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
  • 2Institute of Mechanics, Materials and Civil Engineering, Applied Mechanics and Mathematics, Université Catholique de Louvain, Louvain-la-Neuve, Belgium

Correspondence: Guillian Van Achter (guillian.vanachter@uclouvain.be) Received: 04 Dec 2019 – Discussion started: 10 Dec 2019 – Revised: 17 Jul 2020 – Accepted: 09 Sep 2020 – Published: 21 Oct 2020


We use model simulations from the CESM1-CAM5-BGC-LE dataset to characterise the Arctic sea ice thickness internal variability both spatially and temporally. These properties, and their stationarity, are investigated in three different contexts: (1) constant pre-industrial, (2) historical and (3) projected conditions. Spatial modes of variability show highly stationary patterns regardless of the forcing and mean state. A temporal analysis reveals two peaks of significant variability, and despite a non-stationarity on short timescales, they remain more or less stable until the first half of the 21st century, where they start to change once summer ice-free events occur, after 2050.

How to cite. Van Achter, G., Ponsoni, L., Massonnet, F., Fichefet, T., and Legat, V.: Brief communication: Arctic sea ice thickness internal variability and its changes under historical and anthropogenic forcing, The Cryosphere, 14, 3479–3486, https://doi.org/10.5194/tc-14-3479-2020, 2020.1