Posted on January 15, 2016 by Bob Berwyn
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’
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
Filed under: climate and weather, Environment, global warming | Tagged: anthropocene, climate change, CO2, global warming, greenhouse gases, ice ages | Leave a comment »
Posted on June 3, 2014 by Bob Berwyn
Abysmal waters play huge role in global carbon cycles
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
Filed under: climate and weather | Tagged: carbon cycle, global climate, ice ages, Last Glacial Maximum, Southern Ocean | Leave a comment »