Many skiers in the western United States are familiar with the phenomenon of “watermelon snow,” a pink algae bloom appearing at high altitudes in the summer months. But the appearance of pink algae in Italy, where it was previously uncommon, sparked concerns this week over glacial melt. These algae decrease the albedo on the snow surface—the amount of light energy reflected by the snow—and thereby absorb more heat. Glacier ice normally reflects 80 percent of the sun’s energy. But the darker the color on the snow surface, the more quickly they increase in temperature and melt.
Why the Great American Outdoors Act Matters
Read article
The discovery of the algae on the Presena Glacier caused a stir among scientists because Italian glaciers are already receding at an alarming rate. Known by its Latin name, Ancylonema nordenskioeldii, the algae thrives in a positive feedback loop of melting snow. The more the snow melts, the more water feeds them, and the farther they can spread. The algae, first recorded in the notes of Aristotle, has been a driver of melt for centuries. Combined with anthropogenic climate change, the acceleration of glacier melt could prove devastating to the Italian alpine environment, economy, and culture. Scientist Biagio Di Mauro of Italy’s National Research Council said to The Guardian that while humans are accelerating climate change, natural phenomena such as the algae contribute as well. But human-algae interaction increases this process. Compressing the snow with boots and skis deepens the color, further decreasing the snow’s albedo.
This Walking Safari Brings You Closer to Africa’s Raw and Rugged Wilderness
Read article
The Presena glacier has lost more than one third of its volume since 1993. The melt-out has gotten so bad that locals have taken to covering the glacier in white tarpaulin. With scientists predicting a 70 percent reduction in snowfall by the end of the century, it is clear that the time to solve this crisis is running out. This article originally appeared on Powder.com and was republished with permission.
For access to exclusive gear videos, celebrity interviews, and more, subscribe on YouTube!
More News
4-Day Weekend in the Italian Riviera
Is a Club Med Ski Vacation Right for You?
10 Spotlights From the Prestigious Small Luxury Hotels Collection
The Best Value Golf Courses in America
Top Campervan-friendly Ski Resorts and Best Rental Outfitters
The Best Expedition Cruises for Unforgettable Adventures
All Stories
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
Many skiers in the western United States are familiar with the phenomenon of “watermelon snow,” a pink algae bloom appearing at high altitudes in the summer months. But the appearance of pink algae in Italy, where it was previously uncommon, sparked concerns this week over glacial melt.
These algae decrease the albedo on the snow surface—the amount of light energy reflected by the snow—and thereby absorb more heat. Glacier ice normally reflects 80 percent of the sun’s energy. But the darker the color on the snow surface, the more quickly they increase in temperature and melt.
Why the Great American Outdoors Act Matters
Read article
The discovery of the algae on the Presena Glacier caused a stir among scientists because Italian glaciers are already receding at an alarming rate. Known by its Latin name, Ancylonema nordenskioeldii, the algae thrives in a positive feedback loop of melting snow. The more the snow melts, the more water feeds them, and the farther they can spread.
Why the Great American Outdoors Act Matters
Read article
Why the Great American Outdoors Act Matters
The algae, first recorded in the notes of Aristotle, has been a driver of melt for centuries. Combined with anthropogenic climate change, the acceleration of glacier melt could prove devastating to the Italian alpine environment, economy, and culture.
Scientist Biagio Di Mauro of Italy’s National Research Council said to The Guardian that while humans are accelerating climate change, natural phenomena such as the algae contribute as well. But human-algae interaction increases this process. Compressing the snow with boots and skis deepens the color, further decreasing the snow’s albedo.
This Walking Safari Brings You Closer to Africa’s Raw and Rugged Wilderness
Read article
The Presena glacier has lost more than one third of its volume since 1993. The melt-out has gotten so bad that locals have taken to covering the glacier in white tarpaulin. With scientists predicting a 70 percent reduction in snowfall by the end of the century, it is clear that the time to solve this crisis is running out.
This Walking Safari Brings You Closer to Africa’s Raw and Rugged Wilderness
Read article
This Walking Safari Brings You Closer to Africa’s Raw and Rugged Wilderness
This article originally appeared on Powder.com and was republished with permission.
For access to exclusive gear videos, celebrity interviews, and more, subscribe on YouTube!
More News
4-Day Weekend in the Italian Riviera
Is a Club Med Ski Vacation Right for You?
10 Spotlights From the Prestigious Small Luxury Hotels Collection
The Best Value Golf Courses in America
Top Campervan-friendly Ski Resorts and Best Rental Outfitters
The Best Expedition Cruises for Unforgettable Adventures
All Stories
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
More News
4-Day Weekend in the Italian Riviera
Is a Club Med Ski Vacation Right for You?
10 Spotlights From the Prestigious Small Luxury Hotels Collection
The Best Value Golf Courses in America
Top Campervan-friendly Ski Resorts and Best Rental Outfitters
The Best Expedition Cruises for Unforgettable Adventures
All Stories
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
More News
4-Day Weekend in the Italian Riviera
Is a Club Med Ski Vacation Right for You?
10 Spotlights From the Prestigious Small Luxury Hotels Collection
The Best Value Golf Courses in America
Top Campervan-friendly Ski Resorts and Best Rental Outfitters
The Best Expedition Cruises for Unforgettable Adventures
All Stories
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
More Videos
The MJ5: Tony Hawk on His Favorite Gear, Why He Always Carries His Board, and More
Here's the Difference Between Bourbon and Whiskey
Young Guns and a Supercharged Catamaran: U.S. SailGP Team Takes on New York City
