Linda Mugford

Changes in Snow and Sea Ice in the Arctic

Climate, General / /

e. As the Arctic warms, ice (both
terrestrial ice and snow, and sea ice) melts, amplifying warmth. And with the loss of terrestrial ice, sea level rises. Because the feedback processes responsible for the observed Arctic amplifica tion in the past remain active today, it is very likely that Arctic amplification will continue for the foreseeable future, With this amplification, sea ice will continue to contract, and glaciers and ice sheets will experience accelerated melting, with concomitant increases in the rate of sea level rise.

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Muskrat Falls transmission fix requires 9,000 new pieces of equipment 

Hydro Dams, News / /

This latest chapter of the Muskrat Falls saga; replacement of air flow spoilers on the 161 spans, comes weeks after Hydro announced the vastly overbudget project’s price tag had hit $13.5 billion and an independent report stated at least one of the power plant’s four generating units must be fully dismantled. 

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Muskrat Falls Reservoir

Sold down the river

Hydro Dams / /

After a decade of work and $13.4 billion — nearly double the price tag promised in 2012 — there are now serious doubts the project will ever perform as designed. Equipment is falling from overhead lines in locations so remote it takes days to reach them before repairs can even begin. Muskrat Falls power is so unreliable that an aging thermal plant the project was meant to replace will remain open for years to come.

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