Antinuclear

Australian news, and some related international items

91 previously unknown volcanoes beneath Antarctica’s ice

Another climate-change nightmare: 91 new volcanoes beneath Antarctica’s ice, WP ,  August 15 “….now it turns out Antarctica has problems we didn’t even know about. Deep problems. Volcanoes-under-the-ice problems, which doesn’t sound healthy.

University of Edinburgh researchers on Monday announced the discovery of 91 previously unknown volcanoes under west Antarctica. They do not sound nearly as alarmed as, say, Quartz, which called the possibilities terrifying.

“By themselves the volcanoes wouldn’t be likely to cause the entire ice sheet to melt,” said lead researcher Max Van Wyk de Vries, whose team published the study in the Geological Society in late May. But if the glacier is already melting because of global warming, he said, “if we start reducing significant quantities of ice … you can more or less say that it triggers an eruption.”

In a worst-case scenario, the researchers say, we could see a feedback loop of melting ice that destabilizes volcanoes, which erupt and melt more ice, and so on until Antarctica’s troubles to date seem halcyon in comparison……

While some are quite worried, de Vries doubted that a little blast of molten rock would do much harm to a massive Antarctic ice sheet. Directly, at least.

But he laid out a worst-case scenario in which lava managed to melt through a glacier, and warm ocean water seeped into the hole, and the whole system began melting even faster, potentially unleashing vast magmatic forces beneath the ice. https://www.washingtonpost.com/news/speaking-of-science/wp/2017/08/15/another-climate-change-nightmare-dozens-of-volcanoes-beneath-antarcticas-thinning-ice/?utm_term=.fe9ede7c33c3

Advertisements

August 18, 2017 - Posted by | General News

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: