Nature Geoscience

Glaciers in Canadian Rockies Could Shrink By 95% by 2100, Study Finds

Athabasca Glacier

This blog originally appeared on Carbon Brief.

The Canadian Rockies, which sit as a backdrop to many a stunning vista, could be almost entirely devoid of glaciers by the end of the century, a new study suggests.

Researchers modelled the impact of rising temperatures on glaciers across western Canada.

The results show widespread ice loss by 2050, and ice all but vanishing a few decades later.

Around 27,000 square kilometers of Western Canada is covered by glaciers, an area similar in size to the amount of ice in the Himalayas or the whole of South America.

Study: Climate Change Will Continue for 1,000 Years Even with Zero Emissions

It’s only early January, and already we’re witnessing what could be the most devastating climate change story of the year.  A new study in Nature Geoscience this week shows that even if we go to zero emissions and completely halt our wholesale burning of fossil fuels, climate change will continue for the next 1,000 years. 

If only we could take solace in saying, “I told you so” to climate change deniers and the fossil fuel lobby fighting to confuse the public about climate change.  Such proclamations seem trite and trivial, however, when we’re faced with the burning reality that our dirty oil addiction is cooking the planet in an irreversible way. 

The study, conducted by University of Calgary and Environment Canada’s climate centre at the University of Victoria is the first full climate model simulation to make predictions 1,000 years into the future.  Dr. Shawn Marshall and his team explore the question: “What if we completely stopped using fossil fuels and put no more CO2 in the atmosphere?  How long would it then take to reverse current climate change trends and will things first become worse?”  Using simulations with the Canadian Earth System Model, the research team exploredzero-emissions scenarios if humans completely stop burning fossil fuels in 2010 and 2100.  

The article shows, devastatingly, that climate change will continue even if we stop our use of fossil fuels immediately.  We’ve had that much of an impact.  With this news, Canada’s head-in-sand approach to climate issues just won’t cut it. 

Antarctic ice sheets melting at ever-faster rate due to global warming: new study

The report in last week’s Nature Geoscience, which builds on previous findings, lends greater urgency to the search for a new global agreement to limit greenhouse emissions.

Nature Geoscience has concluded that changes in water temperature and wind patterns due to global warming are melting ice sheets in western Antarctica at a much faster rate than previously detected.

Using measurements from satellites that scanned about 85 percent of Antarctica’s coasts from 1996 to 2006, the study’s authors found that West Antarctica has been losing ice 60 percent faster than 10 years ago.

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