Category: Colorado

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?”

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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”

Sunday set: Mountain love

Go higher …


Time revisit a couple of favorite mountains scenes in the Summit Voice archives, and time to remember that global warming is going alter some mountain landscapes irrevocably, not it the far distant future, but within a few decades. For example, a new study shows how warming will alter basic soil chemistry by speeding up microbial activity and shifting the balance of key nutrients. This will displace some plants and probably eliminate others. And as much as we appreciate forested landscapes, climate change is driving the spread of tree-killing insects, as shown by the latest aerial survey of Colorado forests. Check out more environmental and nature photography from Summit Voice at our online gallery, or visit the Sunday Set archives.

Droughts and fires affecting Western U.S. air quality

New study tracks increase in summertime haze in Colorado wilderness

Summit County firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012.
Summit County, Colorado, firefighters extinguish a small wildfire between Keystone and Montezuma late March, 2012. A new University of Utah study suggests that more drought and wildfires will worsen air pollution in the high country of the West, even spreading to pristine wilderness areas. @bberwyn photo.

Staff Report

Longer and hotter droughts and wildfires are polluting the once clear blue skies of the high country in the West, according to new research from the University of Utah.

The study, published this week in the journal Environmental Research Letters, found a link between the severity of drought in the Intermountain West and summertime air quality. Climate projections suggest that drought and wildfire risk will continue to increase in coming decades.

“If you take that into the future, we’re going to see significant hazing of the West,” said University of Utah atmospheric scientist Gannet Hallar. Continue reading “Droughts and fires affecting Western U.S. air quality”

Morning photo: Year in review

Winter scenes

I covered some ground this year with Summit Voice and all around the web, with diverse reporting and photojournalism from two continents, and I’ll post links to some of the top stories of 2016 in the next few days, but we also wanted to take a look back at the past year in photos, starting with a few favorites from early last winter. My favorite shot of the year is the shadow silhouette at Red Rocks, taken at dawn, Christmas morning. If you have sharp eyes, you’ll be able to pick out some of Colorado’s best ski areas in the monochrome shot taken from a commercial airliner headed west from Denver. Out weekly photo sets are here, and you can also check out our online gallery here. We also closed out the year with a fine environmental photo essay of the cryosphere for Pacific Standard.

 

Opinion: Colorado, you are so fracked …

It’s all about the Mancos shale gas

Signs of oil and gas development are visible on a landscape level from 35,000 feet in the air.
Signs of oil and gas development are visible on a landscape level across western Colorado and eastern Utah from 35,000 feet in the air. @bberwyn photo.

By Bob Berwyn

If you think Colorado is getting fracked now, just wait a few more months. The state’s oil and gas producers are lining up with the rest of the fossil fuel industry to cash in on the incoming administration’s dark vision of carbon unleashed. In a press release issued this week, the West Slope Colorado Oil & Gas Association says it’s already planning a trip to Washington, D.C. to expedite approval of a natural gas pipeline across the western USA, leading to an export terminal at Coos Bay, Oregon.

The Canadian company proposing development of the project announced today it will reapply for a permit for the project with the Federal Energy Regulatory Commission in the next few months.

But a pipeline won’t do any good if there is no place to load the gas aboard ships, and West Coast cities are determined to block new fossil fuel infrastructure, according to InsideClimate News, which reports that Portland is one of the latest cities to use local zoning powers to prevent construction of new major fossil fuel terminals and expansion of any existing facilities.

And according to the watchdog group Citizens Against LNG, the Jordan Cove Energy Project, L.P. also formally requested that its application for a Site Certificate for their South Dunes Power Plant be withdrawn from further consideration by the Oregon Energy Facility Siting Council and the Oregon Department of Energy. Without that power plant, there won’t any terminal at Coos Bay, activists say.

The idea, according to WSCOGA, is to develop Western Colorado’s vast Mancos Shale gas potential — an energy reserve among the largest natural gas resources in North America. According to the press release, natural gas producers in the Piceance Basin “have applauded Jordan Cove LNG’s decisive and speedy decision to pursue reapplication and approval of the most important energy infrastructure project in the Western United States.” Continue reading “Opinion: Colorado, you are so fracked …”

Autumn was exceptionally warm across the U.S.

Record and near-record readings from coast to coast

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All 48 contiguous states reported above average temperatures for the fall of 2016.

Staff Report

November 2016’s average temperature across the U.S. was 6.3 degrees Fahrenheit above the 20th century average, making it the second-warmest on record, behind 1999. According to the latest monthly update from the National Centers for Environmental Information, November is warming at a rate of 6.6 degrees Fahrenheit per century. Only January has been warming faster, at a rate of 10.5 degrees Fahrenheit per century.

Idaho, North Dakota and Washington were record warm in November. Every state in the Lower 48 experienced an average temperature that above average. North Dakota’s average temperature was 12.8 degrees above normal, nearly 2 degrees above the previous record set in 1999. In the West, 15 states reported their second or third warmest November reading on record. Continue reading “Autumn was exceptionally warm across the U.S.”