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Unless warming is slowed, emperor penguins will be marching towards extinction:
Emperor penguins are some of the most striking and charismatic animals on Earth, but a new study from the Woods Hole Oceanographic Institution (WHOI) has found that a warming climate may render them extinct by the end of this century. The study, which was part of an international collaboration between scientists, published Nov. 7, 2019, in the journal Global Change Biology.
"If global climate keeps warming at the current rate, we expect emperor penguins in Antarctica to experience an 86 percent decline by the year 2100," says Stephanie Jenouvrier, a seabird ecologist at WHOI and lead author on the paper. "At that point, it is very unlikely for them to bounce back."
The fate of the penguins is largely tied to the fate of sea ice, which the animals use as a home base for breeding, feeding and molting, she notes. Emperor penguins tend to build their colonies on ice with extremely specific conditions—it must be locked in to the shoreline of the Antarctic continent, but close enough to open seawater to give the birds access to food for themselves and their young. As climate warms, however, that sea ice will gradually disappear, robbing the birds of their habitat, food sources, and ability to raise their chicks.
[...] Under the 1.5 degree [Celsius maximum global temperature increase sought under the Paris Accord] scenario, the study found that only 5 percent of sea ice would be lost by 2100, causing a 19 percent drop in the number of penguin colonies. If the planet warms by 2 degrees, however, those numbers increase dramatically: the loss of sea ice nearly triples, and more than a third of existing colonies disappear. The 'business as usual' scenario is even more dire, Jenouvrier adds, with an almost complete loss of the colonies ensured.
"Under that scenario, the penguins will effectively be marching towards extinction over the next century," she says.
Journal Reference:
Stéphanie Jenouvrier, The Paris Agreement objectives will likely halt future declines of emperor penguins[$]. Global Change Biology, 2019; DOI: 10.1111/gcb.14864
(Score: 3, Interesting) by Anonymous Coward on Friday November 08 2019, @10:19AM (1 child)
All the other studies were saying we have record numbers of all kinds of penguins and polar bears. The numbers are so large that the rest of the man made global warming doomist industry, such as the UN-IPCC AR5 report, gave up reporting on their extinction.
Also independent analysis of the Paris Agreement shows it doesnt affect the temperature of the planet at all, so you cant even get 2 lines into this study without asking the obvious "has this really been Peer Reviewed?" or did they Peer review it themselves?
(Score: 3, Interesting) by PiMuNu on Friday November 08 2019, @10:53AM
New scientist and scientific american are generally on the side of the climate change believers.
Polar bears (new scientist):
https://www.newscientist.com/article/dn11656-climate-myths-polar-bear-numbers-are-increasing/ [newscientist.com]
Penguins (scientific american):
https://www.scientificamerican.com/article/penguin-populations-are-changing-dramatically/ [scientificamerican.com]
So while there is some truth in parent's comment, these sources indicate it isn't quite clear cut.