Tag: ice ages

Study says human-caused global warming has interrupted Earth’s ice age cycles

The Dachstein Glacier in Austria has visibly and dramatically decreased in size in just a couple of decades. bberwyn photo.
The Dachstein Glacier in Austria has visibly and dramatically decreased in size in just a couple of decades. bberwyn photo.

Humans have triggered an era of ‘de-glaciation’

Staff Report

The build-up of heat-trapping greenhouse gases in the atmosphere could delay onset of Earth’s next ice age by 100,000 years, scientists estimate in a new study published this week in Nature.

The researchers reached their findings after “cracking the code of glacial inception,” according to a statement from the Potsdam Institute for Climate Impact Research, who said the relationship between incoming solar radiation and CO2 levels are the key factors that explain the last eight glacial cycles in Earth history. Continue reading “Study says human-caused global warming has interrupted Earth’s ice age cycles”

Climate: Does the Southern Ocean hold the ice age key?

Abysmal waters play huge role in global carbon cycles

The water in the Antarctic Sound can be smooth as glass, and sometimes look thick and oily, probably because it's so cold. Click on the photo to learn about some of the environmental issues in Antarctica.
The water in the Antarctic Sound can be smooth as glass. bberwyn photo.

By Summit Voice

FRISCO — The remote Southern Ocean, encircling Antarctica, may be a key driver of the carbon cycle, inhaling and exhaling enough carbon to help shift the global climate in and out of ice ages.

For decades, scientists have been trying to figure out what exactly, along with the known wobbles in Earth’s journey around the sun, may cause the huge shifts that lead to vast ice sheets covering many of the planet’s land masses. Continue reading “Climate: Does the Southern Ocean hold the ice age key?”