Tag: global warming

Sunday set: Austria’s mountain farms

Alm journeys


This past summer, we spent several weeks exploring the world of Austrian Alms, high mountain pastures that are only grazed for a few months each summer. While we in the U.S. generally tend to prefer undisturbed mountain landscapes for their aesthetic and environmental values, these Austrian pastures have been grazed for centuries and even millennia. In the earliest days, as humans colonized the Alps after the last ice age, they had to use the higher slopes as forage areas because the valleys were still choked with glacial debris, wetlands and thick vegetation. That means the open meadows higher up were actually available for animal husbandry earlier than the lower elevations. In any case, the Alms now form an important part of the Alps’ ecological fabric, providing habitat for many wildflowers, including rare orchids, that wouldn’t thrive in a dark forest environment. Alms are also important to culture and recreation, as gathering points for hikers, and help ensure local food supplies. The first three in a series of grant-funded stories on this topic have been published at Pacific Standard, links below. Help support independent environmental journalism by visiting the stories and sharing them on your social media networks.

 

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How do ponds fit into the global warming equation?

New study shows warmup will boost methane releases

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Small ponds will speed up climate change as they warm up. @bberwyn photo.

Staff Report

Small ponds could end up having a huge impact on Earth’s climate as they warm up due to heat-trapping greenhouse gas pollution, according to scientists from the University of Exeter and Queen Mary University of London. The researchers experimentally warmed a number small ponds by about 4-5 degrees Celsius over the course of seven years to study the effects of increased temperatures. Continue reading “How do ponds fit into the global warming equation?”

How will global warming affect Colorado River flows?

Water woes ahead for the Southwest

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The Colorado River will be hit hard by climate change. @bberwyn photo.

Even if precipitation stays the same or increases slightly in the next few decades, Colorado River flows are likely to dwindle due to increasing temperatures in the West. The projected warming in the 21st century could reduce flows by half a million acre feet per year, according to a new study to be published in the AGU journal Water Resources Research. Continue reading “How will global warming affect Colorado River flows?”

January 2017 climate change hot spots include the Arctic, Australia and South America

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January 2017 was ‘only” the third-warmest January on record according to NOAA, and the second-warmest, according to the EU Climate Change Centre.

Staff Report

Along with recording the third-highest global average January temperature, scientists with the World Meteorological Organization have been tracking the Polar equivalent of heatwaves, as strong Atlantic storms driving temperatures in the Arctic to near freezing, at times 50 degrees Fahrenheit above the seasonal average.

“Temperatures in the Arctic are quite remarkable and very alarming,” said World Climate Research Programme Director David Carlson. “The rate of change in the Arctic and resulting shifts in wider atmospheric circulation patterns, which affect weather in other parts of the world, are pushing climate science to its limits.” Continue reading “January 2017 climate change hot spots include the Arctic, Australia and South America”

Sunday set: Environmental journeys

Seeking knowledge …


I’ve been reporting on the environment for 21 years, so it’s not surprising that, even when I’m traveling on vacation, I tend to see nearly everything through a certain prism. That may be a blessing and a curse at the same time. It might be nice, every now and then, to completely tune out from the world’s problems and just live hedonistically. On the other hand, I feel like I can really connect with the people and places I’m seeing by understanding them in an environmental context. And in reality, I don’t really separate work and play all that much anymore. This past summer’s trek through the Austrian Alps to learn about climate change and sustainable mountain agriculture was a wonderful experience. Being a journalist gives me an excuse to exercise my curiosity. You can read about the environment and culture of the Austrian Alms here, and learn more about melting Arctic ice may affect you in this story

Study says ice sheets can crumble quickly

Slight ocean warming enough to tip the system

Scientists working in Greenland have been stunned by the speed at which ice is retreating.
Retreating ice shows dramatic climate change is under way in the Anthropocene. @bberwyn photo.

Staff Report

Just small increases in ocean temperatures during past geological epochs may have been enough to tip Northern Hemisphere ice sheets toward disintegration, even as air temperatures remained cold. That could spell trouble in the current era of climate warming, according to a new study led by University of Michigan researchers, who said their finding suggest that climate change could cause sea level to rise higher than most models predict. Continue reading “Study says ice sheets can crumble quickly”

Global warming hampers post-fire forest regrowth in Colorado

‘We are seeing the initiation of a retreat of forests to higher elevations’

A June, 2011 wildfire in Keystone Gulch burned within a few hundred feet of vacation homes and full-time residences at the Colorado resort.
A June, 2011 wildfire in Keystone Gulch burned within a few hundred feet of vacation homes and full-time residences at the Colorado resort. @bberwyn photo.

Staff Report

Global warming is likely one of the main factors that’s preventing some Colorado forests from regenerating after wildfires.

When they started studying eight wildfire sites that burned across 162,000 acres of low-elevation forests along the Front Range, University of Colorado Boulder researchers said they expected to see young trees popping up all over the place, but that’s not what they found.

There were no seedlings at all in 59 percent of the study plots and 83 percent showed a very low density of seedlings. Future warming and associated drought may hinder significant further recovery, the researchers concluded. Only 2 to 38 percent of plots surveyed, depending on the fire site, were considered stocked, or on their way to recovery. Continue reading “Global warming hampers post-fire forest regrowth in Colorado”