GEOLOGY WITH JEFF SIMPSON
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New Climate Maps Show a Transformed United States

8/21/2022

 
According to new data from the Rhodium Group analyzed by ProPublica and The New York Times Magazine, warming temperatures and changing rainfall will drive agriculture and temperate climates northward, while sea level rise will consume coastlines and dangerous levels of humidity will swamp the Mississippi River valley. Taken with other recent research showing that the most habitable climate in North America will shift northward and the incidence of large fires will increase across the country, this suggests that the climate crisis will profoundly interrupt the way we live and farm in the United States. See how the North American places where humans have lived for thousands of years will shift and what changes are in store for your county. - ProPublica
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Arizona gem mine rebuilding after the Bush Fire

1/30/2022

 
A unique gem mine in the mountains northeast of Mesa is in the process of rebuilding after a wildfire wiped it out in 2020. The Bush Fire is now the 5th largest in Arizona's history as firefighters battle multiple blazes. "The fire came roaring up the mountain. It was so intense," the mine's owner, Kurt Cavano said, as he gathered charred debris to be removed from the site. When the Bush Wildfire burned through nearly 200,000 acres northeast of the Valley, the flames raced up the side of Four Peaks, scorching everything in their path, including the mine. - AZ Family 
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Is the Amazon near a tipping point? Three real-world studies are ominous

10/24/2021

 
Near the Freire home, there was a stream so wide that the children – aged between 5 and 12 when they arrived – would dare each other to reach the other side. They called it Jaguar's Creek. Now it's not a meter wide and can be cleared with a single step. The loss of such streams, and the wider water problems they are a part of, fill scientists with foreboding.Covering an area roughly the size of the contiguous United States and accounting for more than half of the world's rainforest, the Amazon exerts power over the carbon cycle like no other terrestrial ecosystem on Earth. The tree loss from an extremely dry year in 2005, for example, released an additional quantity of carbon dioxide into the atmosphere equivalent to the annual emissions of Europe and Japan combined, according to a 2009 study published in Science magazine. - Reuters 
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Climate Change Pushes Fires to Higher Ground

9/8/2021

 
Scientists have known for decades that climate change makes wildfires more common, larger, and more intense. Now an international team of scientists has demonstrated a new connection between fires and global warming. Using data from Landsat satellites, they discovered that wildfires in the western United States have been spreading to higher elevations due to warmer and drier conditions that are clearly linked to climate change.  Historically, forest fires have been rare in high-elevation areas—at least 8,200 feet (2,500 meters) above sea level. But when McGill University scientist Mohammad Reza Alizadeh and colleagues studied fires that occurred in the West between 1984 and 2017, they found blazes moving to higher ground at a rate of 25 feet (7.6 meters) per year.  Fires are now burning higher up on hillsides and mountainsides because areas that used to be too wet to burn are now drier due to warmer temperatures and earlier snowmelt.  - NASA
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Amazon Now Emits More Carbon Than Absorbs. Can We Reverse That Tipping Point?

7/25/2021

 
It’s a high bar to clear, but this is one of the most depressing facts I’ve read as a climate journalist: the Amazon rainforest—a region known as “the lungs of the world” but battered by decades of deforestation—now emits more carbon than it absorbs. That’s the conclusion of a widely cited study published last week in the journal Nature, for which scientists undertook 590 flights over the Amazon to measure local atmospheric carbon levels over eight years, from 2010 to 2018. - Time

Parts of the Amazon Go From Absorbing Carbon Dioxide to Emitting It

7/14/2021

 
Portions of the Amazon rainforest are now emitting more carbon dioxide than they absorb — a troubling sign for the fight against climate change, a new study suggests.  Deforestation and an accelerating warming trend have contributed to change in the carbon balance, which is most severe in the southeastern region of the Amazon, where there are both rising temperatures and reduced rainfall in the dry season. The most affected regions have warmed by 4.5 degrees Fahrenheit during the dry season in the last 40 years, comparable to the changes seen in the rapidly-warming Arctic. - NYTimes
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Beavers Are Firefighters Who Work for Free

5/19/2021

 
Since Kenneth McDarment was a kid in the 1980s, he’s seen the foothills of the Sierra Nevada change. As a councilman of the Tule River Tribe, a sovereign nation of around 1,000 members living on 56,000-odd acres in the foothills of the Sierras, McDarment deals with everything water-related on the reservation. Today there’s less rain and less snow than there was even a decade ago, which means that the land in the foothills was dangerously dry during the last fire season, when wildfires were sweeping across the state. “If you don’t got water,” says McDarment, “we don’t got nothing.  In 2014, McDarment began looking into getting ahold of some beavers. McDarment hoped that beaver dams would create soggy areas on tribal lands that wouldn’t dry out during heat waves. “We’re hoping that means our land will be less likely to burn during fire season,” he says. “Beavers were here originally. So why not bring them back and let them do the work they do naturally?  There was just one problem—it is illegal to move beavers without a permit. And a permit to move a beaver isn't easy to come by. - Sierra

Fossil Fuel Pollution Causes 1 in 5 Premature Deaths Globally

2/9/2021

 
Pollution from fossil fuels causes one in five premature deaths globally, suggesting the health impacts of burning coal, oil and natural gas may be far higher than previously thought,  Parts of China, India, Europe and the northeastern United States are among the hardest-hit areas, suffering a disproportionately high share of 8.7 million annual deaths attributed to fossil fuels, the study published in the journal Environmental Research found.  The new research gives the most detailed assessment of premature deaths due to fossil-fuel air pollution to date. Another study in 2017 had put the annual number of deaths from all outdoor airborne particulate matter — including dust and smoke from agricultural burns and wildfires — at 4.2 million. - Reuters

20 Signs the Climate Crisis Has Come Home to Roost

11/27/2020

 
See the graphics in the High Country News article. 
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The world's largest wetlands are on fire. That's a disaster for all of us.

11/16/2020

 
The world watched as California and the Amazon went up in flames this year, but the largest tropical wetland on earth has been ablaze for months, largely unnoticed by the outside world. South America's Pantanal region has been hit by the worst wildfires in decades. The blazes have already consumed about 28% of the vast floodplain that stretches across parts of Brazil, Bolivia and Paraguay. They are still not completely under control. The Amazon's frontline defenders are under siege The fires have destroyed unique habitats and wrecked the livelihoods of many of the Pantanal's diverse indigenous communities. But their damaging impact reaches far beyond the region.  Wetlands like the Pantanal are Earth's most effective carbon sinks -- ecosystems that absorb and store more carbon than they release, keeping it away from the atmosphere. At roughly 200,000 square kilometers, the Pantanal comprises about 3% of the globe's wetlands and plays a key role in the carbon cycle. - CNN
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Climate Change Will Force a New American Migration

10/1/2020

 
Across the United States, some 162 million people — nearly 1 in 2 — will most likely experience a decline in the quality of their environment, namely more heat and less water. For 93 million of them, the changes could be particularly severe, and by 2070, our analysis suggests, if carbon emissions rise at extreme levels, at least 4 million Americans could find themselves living at the fringe, in places decidedly outside the ideal niche for human life. The cost of resisting the new climate reality is mounting. Florida officials have already acknowledged that defending some roadways against the sea will be unaffordable. And the nation’s federal flood-insurance program is for the first time requiring that some of its payouts be used to retreat from climate threats across the country. It will soon prove too expensive to maintain the status quo. - Pro Publica


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We Made Wildfire an Enemy for 110 Years. It Could Have Been an Ally.

9/26/2020

 
Starting with the Big Blowup of 1910, the U.S. Forest Service’s strategy mostly has been to put out fires as fast as possible. With climate change and shifting populations, we’re losing that war. - NYTimes

The efforts to suppress wildfires, particularly in the American West — as seen here in Oregon in 1955 — have often resembled military campaigns, in both their approach and equipment.  Image Credit J. R. Eyerman / The LIFE Picture Collection, via Getty Images


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California Fire Map, Bobcat Blaze 'Continues to Advance,' Burns Over 100,000 Acres

9/23/2020

 
California wildfires have burned over 3.6 million acres of the state so far this year, with 26 reported deaths and more than 6,400 structures destroyed since August 15, according to the latest report Monday from the California Department of Forestry and Fire Protection (Cal Fire).  Over 19,000 firefighters are currently battling 27 major fires in California, according to Cal Fire's report Monday, including the Bobcat Fire in Los Angeles County, which has burned over 100,000 acres. - Newsweek
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How Beavers Became North America's Best Firefighter

9/23/2020

 
​A new study concludes that, by building dams, forming ponds, and digging canals, beavers irrigate vast stream corridors and create fireproof refuges in which plants and animals can shelter. In some cases, the rodents’ engineering can even stop fire in its tracks.
“It doesn't matter if there’s a wildfire right next door,” says study leader Emily Fairfax, an ecohydrologist at California State University Channel Islands. “Beaver-dammed areas are green and happy and healthy-looking.” - National Geographic / Apple News
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    GeoNews

    This is a way to share science-based info from reliable sources. Click the source link after text to read more. Use this Google Doc or this Google Slides template to summarize an article. An occasional podcast featuring news and topic experts will be included.
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