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?”→
‘We are seeing the initiation of a retreat of forests to higher elevations’
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”→
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.
New study tracks increase in summertime haze in Colorado wilderness
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.
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.
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 …”→
Record and near-record readings from coast to coast
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.