The growth of wildfires in the West could double the amount of sediment moving through the region’s rivers, U.S. Geological researchers found in a new study. Increased sediments can affect both water quality and the amount of water available for communities.
The USGS scientists analyzed a collection of climate, fire and erosion models for 471 large watersheds throughout the western U.S. They found that by 2050, the amount of sediment in more than one-third of watersheds could at least double. In nearly nine-tenths of the watersheds, sedimentation is projected to increase by more than 10 percent.
Canada is on track for a near-record wildfire season this year. So far, there have been more than 500 fires just in British Columbia, burning across more than 1 million acres. Firefighting costs have already reached more than $172 million, and weeks of warm and dry weather will keep the fire danger high.
A common bumblebee visits a garden in Vienna, Austria.
Sea level rise caused by global warming is going to wash away many popular beaches in Southern California.
The glaciers in the Hohe Tauern region of the Austrian Alps have receded by hundreds of feet in just the past few decades.
Firefighters standing in a snow berm extinguishing a small wildfire burning in March 2012 at 10,000 feet in the Colorado Rocky Mountains. This is not normal.
This set includes illustrations for some of my most recent stories in various environmental and climate news publications and if you’re a regular Summit Voice reader who is not on Twitter or Instagram, I’m providing a few links here.
A couple of weeks ago, I wrote about how some of Greenlands coastal glaciers already passed passed a climate change tipping point about 20 years ago. Because of the physical processes of snowmelt and runoff, these glaciers are going to disappear even if global greenhouse gas emissions are cut to zero immediately. You can read the story here.
For Pacific Standard, I put together an environmental photo essay on bumblebees, some of the most important pollinators of wildflowers, especially in mountain regions and also in the far north. Bumblebees are important because they are cold-tolerant, so they’re out and about visiting early blooms while other pollinators are dormant. They’ll also fly long distances to visit a single flower. Without them, some species would go extinct. Check out the photo essay here.
You might have seen the recent Summit Voice story on beach erosion and how it’s going to wash away some world famous surf spots along the California coast, and in other areas where coastal strands are ringed by mountains, but if you missed it, you can see it here.
I also wrote about the annual Austrian glacier report for Deutsche Welle, a great global news organization that really does in-depth environmental and climate reporting. You can visit the DW website here, or follow them on Twitter for a daily feed. And my story on the dwindling glaciers is here.
Finally, in a critical story for Colorado and the rest of the West, I reported on how we are losing the war on wildfires and how we need to change our way of thinking about forests and fires in an era of rapid climate change. The story is online at Pacific Standard.
‘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”→
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.
Global warming a key factor in surge of giant forest blazes
By Bob Berwyn
With about 1.5 million acres already scarred by wildfires across the U.S. this year, Agriculture Secretary Tom Vilsack is warning of a long, hot fire season ahead. Following a meeting with regional Forest Service leaders, Vilsack, along with Forest Service Chief Tom Tidwell, said that federal budgets are not keeping pace with the steep increase in fires.
Vilsack said 2015 was the most expensive fire season in the department’s history, costing more than $2.6 billion on fire alone.
“The 2016 wildfire season is off to a worrisome start. Southern California, the Great Basin in Nevada, portions of the southwest, and even Florida and Hawaii are particularly vulnerable this year,” Vilsack said. The sustained California drought killed more than 40 million trees, which are all potential fuel, and projections for hot summer weather, driven by global warming and a massive El Niño hangover, will likely increase the danger even more, he added. Continue reading “U.S. wildfire season on pace to break last year’s record”→
Alaska, Southwest could see early season forest fires
April precipitation may have helped dampen the potential for a severe wildfire season in parts of the Rocky Mountain region and in the adjacent Great Plains, according to a new outlook from the interagency Rocky Mountain Area Coordination Center.
The projections is based on various seasonal indicators including precipitation, snowpack average, temperatures, wind, plant and soil moisture, and the timing of green-up. These indices support a below average to near average fire season in 2016.