Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…
Tag: glacier
Could Earth’s Reversing Magnetic Poles Accelerate Climate Change?
A team of researchers from Sydney’s University of New South Wales and the South Australian Museum have investigated how the reversal of Earth’s magnetic pole about 42,000 years could have changed earth’s atmosphere. CNN reports: “Using the ancient trees we could measure, and date, the spike in atmospheric radiocarbon levels caused by the collapse of Earth’s magnetic field,” Chris Turney, a…
Grizzlies Are Coming Back. But Can We Make Room For Them?
As grizzly bears expand their range in Montana, Idaho, and Wyoming into places where they haven’t been seen in a century or more, they’re increasingly encountering humans. From a report: Things intensified last summer as trails and campgrounds across the region flooded with inexperienced tourists seeking refuge in the outdoors during the coronavirus pandemic. Grizzly attacks spiked. Bear managers were inundated…
18 dead and hundreds missing in catastrophic Himalayan avalanche
Part of a glacier collapsed in the Indian Himalayas, triggering an avalanche that destroyed one dam and damaged another. Hundreds are feared missing or dead. Source: https://www.livescience.com/himalaya-flood-india-destroys-dam.html
New evidence for multiple ice ages on Mars
Earth has had at least 5 major ice ages. Now it appears Mars – the next planet outward from the sun – has undergone anywhere from half a dozen to 20 ice ages in the past several hundred million years. Source: https://earthsky.org/space/new-evidence-for-multiple-ice-ages-on-mars…
Our world is losing ice at a record rate
The rate at which ice is disappearing across the planet has been speeding up, with 65% since the 1990s, a survey of global ice loss using European Space Agency satellite data reveals. Source: https://earthsky.org/earth/esa-satellites-show-record-rate-ice-loss…
Opinion: Biden administration must act fast to save migratory birds
On Trump’s way out of the White House, his administration demolished a law that protects migratory birds, putting over 1,000 species at risk. The Biden administration can still salvage it, but only if they act swiftly. Source: https://earthsky.org/earth/biden-administration-migratory-bird-treaty-act…
Eastern Alps may have been ice-free in the time of Ötzi the Iceman
Ice cores from a glacier just 12 kilometres from the place the mummified Ötzi the Iceman was found in 1991 suggest that it formed just before or even within his lifetime Source: https://www.newscientist.com/article/2263399-eastern-alps-may-have-been-ice-free-in-the-time-of-otzi-the-iceman/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
The curious case of the “glacier mice” that seem to dance on ice
Fuzzy moss balls that colonise glaciers and move in perfect unison have puzzled scientists for decades. Now, thanks to some painstaking surveillance, they are finally giving up their secrets Source: https://www.newscientist.com/article/mg24833132-900-the-curious-case-of-the-glacier-mice-that-seem-to-dance-on-ice/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Pluto’s landscape more like Earth’s than previously thought
New analysis of data gathered from New Horizons’ 2015 flyby of Pluto shows evidence of Earth-like snow-capped mountains and the potential for glaciers made of methane ice. Source: https://earthsky.org/space/pluto-landscape-more-like-earths-than-previously-thought…