Gleanings of the Week Ending October 28, 2023

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Water Worker Stumbles Upon 2,500-Year-Old Gold Necklaces in Spain – Celtic gold….from before the Roman Empire ruled the Iberian Peninsula.

Canopy gaps help eastern hemlock outlast invasive insect – Hemlock wooly adelgid killed most of the hemlocks in the part of Maryland where I lived previously. Perhaps part of the reason so many died was that they were in forests where there were too few gaps in the canopy around them.

Germany to Surpass 50 Percent Renewable Power This Year – Good milestone but evidently Germany is still not on pace to reach its goal of 80 percent renewable power by 2030.

The surprising origin of a deadly hospital infection - The burden of C. diff infection may be less a matter of hospital transmission and more a result of characteristics associated with the patients themselves (i.e. patients that are already colonized with C. diff were at greater risk to transition to infection). However, it is still unknown what triggers the transition from C. diff hanging out in the gut to the organism causing diarrhea and the other complications resulting from infection.

Meet the Bison: North America’s Most Famous Mammal – Lots of info on bison…their history of almost being hunted to extinction.

The secret world of rhododendrons: a plant more ancient than the Himalayas that inspired fables and stories around the world - There are around 1000 species in total, and modern DNA-based work confirms that all “azaleas” are in fact species of rhododendron.

A Sign of Things to Come? After Last Ice Age, Europe Cooled as the Planet Warmed - More than 8,000 years ago, as the planet thawed following the end of the last ice age, Northern Europe abruptly cooled. New research reveals that Arctic ice melt weakened a critical ocean current, leaving Europe in the cold, a finding with important implications for future climate change.

Fiber from crustaceans, insects, mushrooms promotes digestion – Chitin (from insect exoskeletons and mushrooms) activates the immune system and benefits metabolism. Insects are not on my menu….but I could eat mushrooms more frequently. The researchers plan to follow up to determine whether chitin could be added to human diets to help control obesity.

Review of over 70 years of menopause science highlights research gaps and calls for individualized treatment - Less than 15% of women receive effective treatment for their symptoms. Socio-economic factors such as lower quality of life and the potential negative impact of menopausal symptoms on a woman's work performance aren't often acknowledged. Therapy should be individualized depending on age and health risks, recognizing that health risks may increase with age.

California and Florida grew quickly on the promise of perfect climates in the 1900s – today, they lead the country in climate change risks - In California, home owners now face dangerous heat waves, extended droughts that threaten the water supply, and uncontrollable wildfires. In Florida, sea level rise is worsening the risks of high-tide flooding and storm surge from hurricanes, in addition to turning up the thermostat on already humid heat. Global warming has put both Florida and California at the top of the list of states most at risk from climate change. These futures bring into question how historic visions of economic growth and the sun-kissed good life that California and Florida have promised can be reconciled with climates that are no longer always genial or sustainable.

Gleanings of the Week Ending January 1, 2022

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Spruce Tree House – extreme rockfall management – It’s been decades since I visited Mesa Verde, but I’m still drawn to any articles about it. This one was a reminder of the fragility of the place from a geologic perspective.

4 of the biggest archeological advancements of 2021 – including one ‘game changer’ – I always browse these end-of-year summaries…catch up on any big things that I somehow missed when they were originally in my news feeds.

No more annual flu shot? New target for universal influenza vaccine – Wouldn’t it be nice if this could happen? Even if they did develop a vaccine effective against all strains of influenza…would we still have to get boosters (i.e. would our immunity fade over time)?

With omicron, you need a mask that means business – I’ve been wearing KF-94 masks since February. My Christmas present from daughter was some patterned ones…although I still have a good supply of the black (the Ninja look) ones. I wear one anytime I am indoors (and not at home) and if I am outdoors with a lot of people around. Now that it’s cold, I wear them for warmth too; it’s surprising how much the mask keeps the nose and face comfortably warm….and the mask seals well enough that my glasses don’t fog!

Climate Clues from the Past Prompt a New Look at History – Some examples of the outsized role of climate in human affairs….and the interdisciplinary contributions to papers on the topic.

As Wetland Habitats Disappear, Dragonflies and Damselflies Are Threatened with Extinction – Maybe we need to start thinking about having wetland/ponds in our gardens as well as pollinator gardens…reduce the ‘lawn’ part of the area around our houses.

Forest Keepers: The National Park System is an essential laboratory—and also a battleground—in the management of invasive pests – The invasive pest pictured at the top of this article is woolly adelgid…something a learned to recognize in our area of Maryland…that has killed most of the hemlocks. Some of the trees growing in parks were saved with aggressive treatment, but the ones in the forest behind our house are gone.

New smart-roof coating enables year-round energy savings – A technology that changed the reflection/absorption properties of the roof based on temperature would be another step toward increasing the energy efficiency of buildings….reducing the heat island that plagues cities.

Study shows critical need to reduce use of road salt in winter – This has been a topic in several water quality sessions I’ve attended overthe past few years in Maryland. I have noticed the spraying of brine prior to storm events in our area so maybe some jurisdictions are already following the suggestions in this article.

Inside Idaho’s Campaign to Include Indigenous History in Its Highway Markers – Good idea; history of the US is more than European colonization. This article also prompted me to wonder if there are web sites that document the location and text of highway markers. I did some web searches and found several at the state level…and a general one: https://www.hmdb.org/

There used to be hemlocks

We’ve lived in our current house for almost 25 years. The forest behind the house was one of the reasons we bought it in the first place; my office is the best room in the house because of the view from the window. Over the years the trees have grown – the maple in our yard acting as a foreground to the taller tulip poplars behind. There is a holly that is the only tree that keeps its green in the forest.

But it wasn’t like that in the beginning. The forest is growing on a slope…down to the Middle Patuxent River. You can see the sky through the trees because of that slope and because the hemlocks that used to grow in the forest are all gone. I remember seeing them in the early years; the trees seemed to have crows at the top frequently; I always thought there must have been crows’ nests in the hemlocks. But then West Nile Virus killed almost all the crows and wooly adelgid – I am assuming - killed the hemlocks.

I don’t know exactly when it happened, but the hemlocks are gone, and they won’t be coming back. The crows, on the other hand, seem to be rebounding. I have seen more each year for the past several years. Today I am missing the hemlocks.