Halting irreversible changes to Antarctica depends on cho...

What’s Happening

Let’s talk about Antarctic Peninsula projections show accelerating ice loss, warming oceans and global sea level impacts tied to greenhouse gas emissions.

News Climate Halting irreversible changes to Antarctica depends on choices made today Antarctic Peninsula models show emissions levels will shape ice, seas and wildlife A new study examining possible future greenhouse gas emissions scenarios forecasts the range of fates for the Antarctic Peninsula, and for Antarctic wildlife like these elephant seals ( Mirounga leonina ). Bethan Davies By Carolyn Gramling 2 hours ago this: via email (Opens in new window) Email on Facebook (Opens in new window) Facebook on Reddit (Opens in new window) Reddit on X (Opens in new window) X Print (Opens in new window) Print The Antarctic Peninsula is an early warning system for the southernmost continent when it comes to climate change. (we’re not making this up)

And the prognostications are grim — but it’s not yet too late to avoid irreversible changes, researchers report February 20 in Frontiers in Environmental Scien ce .

The Details

In the new study, the team first documented how the peninsula is already transforming as the planet warms, and then assessed how different amounts of warming by 2100 could alter the peninsula’s fate, including its marine and terrestrial ecosystems, land and sea ice, ice shelves and extreme weather events. Those global warming estimates — of 1.

4 degrees Celsius relative to pre-industrial times — are based on three different what-if scenarios of future greenhouse gas emissions. For our We summarize the week’s scientific breakthroughs every Thursday.

Why This Matters

“The Antarctic Peninsula is fr the alarm bell for the continent,” says Bethan Davies, a glaciologist at Newcastle University in England. It’s a relatively tiny piece of the continent in area, but is disproportionately visible because of fisheries, tourism and scientific research. “Changes that happen in the Antarctic Peninsula also don’t stay in the Antarctic Peninsula,” Davies says.

Scientists and researchers are watching this development closely.

The Bottom Line

“Changes that happen in the Antarctic Peninsula also don’t stay in the Antarctic Peninsula,” Davies says. Retreating glaciers in the southern part of the peninsula can make glaciers in West Antarctica more vulnerable to melting .

Are you here for this or nah?