Spread the Sun

Posted in alternatives to the Green New Deal, an ignorant American public, an uncaring American public, Bloomberg Green, Bloomberg New Energy Finance, bridge to somewhere, Buckminster Fuller, climate disruption, controls theory, corporate supply chains, decentralized electric power generation, distributed generation, ecocapitalism, ecological disruption, ecomodernism, economics, ecopragmatism, electrical energy storage, energy, environment, environmental law, evidence, extended producer responsibility, extended supply chains, field biology, field science, global blinding, Global Carbon Project, global warming, Green Tech Media, gun violence as public health crisis, guns | Leave a comment

Plans for an Explosive Methane Peaker Plant in Peabody

A collection of articles, including …

Artists conception of proposed peaker plant
Posted in being carbon dioxide, bridge to nowhere, Carbon Worshipers, climate disruption, Commonwealth of Massachusetts, Cult of Carbon, energy utilities, explosive methane, fossil fuel infrastructure, fossil fuels, gas pipeline leaks, ISO-NE, natural gas, zero carbon | Leave a comment

“Our pathetic herd immunity failure” (David Brooks)

I would say, too, that the United States is reaping the results of failing to have a sufficiently numerate population, because Mathematics skills at all levels of education are poorly taught.

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My favorite tech and photo shop

It’s B&H Photo Video, of course. I have bought computers, electronics, cameras, accessories, and all kinds of nifty things there. I was an engineer for 44 years. I’m now “retired” and learning to be a scientist and digital macro photographer. Subject: Musci, a.k.a., mosses.

So I’m all about digital cameras. I have two. And three microscopes, with a new compound microscope due to be purchased before the end of 2021.

But enough about me. You want to know more about B&H. Meet Mr Leonard Eisenberg:

B&H Photo Video is great.

And they are ethical and responsible. I love doing business with them.

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A guide to the Task force on Climate-related Financial Disclosures

From Bloomberg media …


Investors in stocks and owners of companies cannot know to which risks they are exposed in their investments unless companies transparently report these risks. Until the TCFD, the very idea of reporting risks to equities due to climate disruption was not even imagined.

The link above tells what the TCFD framework is all about, and how much traction it’s gotten since it began in 2015.

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“I know rockets produce CO2”. Here’s why that’s a win.

“We must become a multi-planet species.”

“We do have a long term plan for even rocket flights.”

“There is a long term plan for sustainable production of rocket fuel.”

Posted in zero carbon | 5 Comments

“Replace a lot of our motion with forethought”

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(Larkin Poe) “Mississippi”

Posted in zero carbon | Leave a comment

Reblog: “Reporting on the Outlaw Ocean”

A podcast from Follow the Data reporting on The Outlaw Ocean Project, combining deep ocean issues with social concerns. These are include and are related to protecting internationally designated marine protected areas from poaching, as well as protecting reefs.

Above from: Rowlands, Gwilym, Judith Brown, Bradley Soule, Pablo Trueba Boluda, and Alex D. Rogers. “Satellite surveillance of fishing vessel activity in the ascension island exclusive economic zone and marine protected area.” Marine Policy 101 (2019): 39-50.

Posted in oceans, slavery, social justice, UU Ministry for Earth | Leave a comment

What is the Tukey loss function?

Originally from Statistical Odds and Ends, there is a nicely brief summary of the Tukey Loss Function

I’d love to see what this does in various kinds of regression. It may be possible to set up some kind of iterative regression scheme, where a normal regression with uniform weights is first done, and then the residuals are used to define a set of alternative weights via the Tukey Loss Function. Then the weighted regression is done, producing another set of residuals, and a new set of weights is defined. This should (eventually) settle down.

Here’s the article:

Statistical Odds & Ends

The Tukey loss function

The Tukey loss function, also known as Tukey’s biweight function, is a loss function that is used in robust statistics. Tukey’s loss is similar to Huber loss in that it demonstrates quadratic behavior near the origin. However, it is even more insensitive to outliers because the loss incurred by large residuals is constant, rather than scaling linearly as it would for the Huber loss.

The loss function is defined by the formula

$latex begin{aligned} ell (r) = begin{cases} frac{c^2}{6} left(1 – left[ 1 – left( frac{r}{c}right)^2 right]^3 right) &text{if } |r| leq c, frac{c^2}{6} &text{otherwise}. end{cases} end{aligned}$

In the above, I use $latex r$ as the argument to the function to represent “residual”, while $latex c$ is a positive parameter that the user has to choose. A common choice of this parameter is $latex c = 4.685$: Reference 1 notes that this value results…

View original post 231 more words

Posted in loss functions, optimization, statistics | Leave a comment

“… [W]e need to address the climate crisis at the pace and scale it demands.”

“Dear President Biden,

“We, the undersigned businesses and investors with a major presence in the U.S., applaud your administration’s demonstrated commitment to address climate change head-on, and we stand in support of your efforts.

“Millions of Americans are already feeling the impacts of climate change. From recent extreme weather to deadly wildfires and record-breaking hurricanes, the human and economic losses of the past 12 months alone are profound. Tragically, these devastating climate impacts also disproportionately hit marginalized and low-income communities who are least able to withstand them. We must act now to slow and turn the tide.

“As business leaders, we care deeply about the future of the U.S. and the health of its people and economy. Collectively, our businesses employ over 7 million American workers across all 50 states, representing over $4 trillion in annual revenue, and for those of us who are investors, we represent more than $1 trillion in assets under management. We join the majority of Americans in thanking you for re-entering the U.S into the Paris Agreement and for making climate action a vital pillar of your presidency. To restore the standing of the U.S. as a global leader, we need to address the climate crisis at the pace and scale it demands. Specifically, the U.S. must adopt an emissions reduction target that will place the country on a credible pathway to reach net-zero emissions by 2050.

We, therefore, call on you to adopt the ambitious and attainable target of cutting GHG emissions by at least 50% below 2005 levels by 2030.

“A bold 2030 target is needed to catalyze a zero-emissions future, spur a robust economic recovery, create millions of well-paying jobs, and allow the U.S. to “build back better” from the pandemic. New investment in clean energy, energy efficiency, and clean transportation can build a strong, more equitable, and more inclusive American economy.2 A 2030 target will also guide the U.S. government’s approach to more sustainable and resilient infrastructure, zero-emissions vehicles and buildings, improved agricultural practices, and durable carbon removal. Finally, the commitment would inspire other industrialized nations to set bold targets of their own.

“Many of us have set or are setting emissions reduction goals in line with climate science since the establishment of the Paris Agreement. The private sector has purchased renewable energy at record rates and along with countless cities across the country, many have committed themselves to a net zero-emissions future.3

“If you raise the bar on our national ambition, we will raise our own ambition to move the U.S. forward on this journey. While an effective national climate strategy will require all of us, you alone can set the course by swiftly establishing a bold U.S. 2030 target.

“Mr. President, we ask that you invest in a resilient, economically sound, net zero-emissions future for all. You can count on our support.”

See the We Mean Business Coalition page for signatories and footnotes.

Posted in being carbon dioxide, Bloomberg Green, climate business, climate change, climate disruption, climate emergency, climate hawk, climate policy, ecocapitalism, ecomodernism, ecopragmatism, fossil fuel divestment, global warming, global weirding, investment in wind and solar energy, leaving fossil fuels in the ground, solar domination, solar energy, solar power, solar revolution, wind energy, wind power | Leave a comment

To Samwise, a noble, incredibly smart cat, Pink Floyd performed by the exquisite Larkin Poe

(Update, 19th April 2021.)

We lost Samwise earlier this month, to lymphoma, probably by everybody’s assessment, including veterinarians, due to exposure to herbicides, insecticides, and pesticides earlier in his life. He was a noble, and wonderful cat. He was smart. He could open doors having door knobs. He could open big drawers under our platform bed, climb in, and close them behind him. He loved knocking pens off of desks. And he hunted, but captured things gently and alive, and always released them. Sure, he might have wanted them to run to chase them again.

But there was a deep soul there. And his death is a statement of how random and arbitrary life is in this universe. I do not believe in a God because if She existed, she would have to be judged psychotic. Ergo, She doesn’t exist. It’s nothing but the sound of random Hydrogen atoms.

I miss him deeply. He was my friend. He was companion while I worked hours at my computer, patient and loving. And he would convince me to accompany him out on adventures on our property, which I also so deeply miss.

So, in his memory, with love and hurt and gratitude, I offer Larkin Poe doing Pink Floyd‘s “Wish You Were Here”.

References to scientific and veterinary literature on lymphoma in cats and dogs:

Gavazza, Alessandra, Silvano Presciuttini, Roberto Barale, George Lubas, and Biancaurora Gugliucci. "Association between canine malignant lymphoma, living in industrial areas, and use of chemicals by dog owners." Journal of Veterinary Internal Medicine 15, no. 3 (2001): 190-195.

Takashima-Uebelhoer, Biki B., Lisa G. Barber, Sofija E. Zagarins, Elizabeth Procter-Gray, Audra L. Gollenberg, Antony S. Moore, and Elizabeth R. Bertone-Johnson. "Household chemical exposures and the risk of canine malignant lymphoma, a model for human non-Hodgkin’s lymphoma." Environmental Research 112 (2012): 171-176.

Tranah, Gregory J., Paige M. Bracci, and Elizabeth A. Holly. "Domestic and farm-animal exposures and risk of non-Hodgkin's lymphoma in a population-based study in the San Francisco Bay Area." Cancer Epidemiology and Prevention Biomarkers 17, no. 9 (2008): 2382-2387.

Reif, John S. "Animal sentinels for environmental and public health." Public Health Reports 126, no. 1_suppl (2011): 50-57.

Deziel, Nicole C., Mary H. Ward, Erin M. Bell, Todd P. Whitehead, Robert B. Gunier, Melissa C. Friesen, and John R. Nuckols. "Temporal variability of pesticide concentrations in homes and implications for attenuation bias in epidemiologic studies." Environmental health perspectives 121, no. 5 (2013): 565-571.

Poppenga, Robert H., and Frederick W. Oehme. "Pesticide use and associated morbidity and mortality in veterinary medicine." In Hayes' Handbook of Pesticide Toxicology, pp. 285-301. Academic Press, 2010.

Pimentel, David, Anthony Greiner, and Tad Bashore. "Economic and environmental costs of pesticide use." Environmental toxicology: current developments (1998): 121-151.

Posted in Felinus catus, Larkin Poe, Pink Flyod, Samwise | 1 Comment

Watching out for those investments: A bubble in companies reliant upon fossil fuels for their business

Posted in American Petroleum Institute, American Solar Energy Society, an ignorant American public, an uncaring American public, Bloomberg New Energy Finance, bridge to somewhere, Carbon Tax, Carbon Worshipers, climate activism, climate business, Climate Interactive | Leave a comment

Bryophyta and the Importance of Sphagnum for the Carbon Cycle

Posted in American Bryological and Lichenological Society, biology, bryology, bryophytes, Carbon Cycle, carbon dioxide, climate disruption, climate emergency, ecological disruption, ecology, global warming, mosses | Tagged , , , | Leave a comment

Emily Atkins: “It’s whacked.” “It’s crappy.”

Posted in zero carbon | Leave a comment

Climate Resilience

Posted in adaptation, Anthropocene, being carbon dioxide, bridge to nowhere, carbon dioxide, children as political casualties, climate disruption, climate nightmares, climate science, climate sensitivity, distributed generation, ecological disruption, ecopragmatism, engineering, First Parish in Needham, Glen Peters, Global Carbon Project, global warming, global weirding, Greta Thunberg, investment in wind and solar energy, Juliana v United States, leaving fossil fuels in the ground, liberal climate deniers, local generation, local self reliance, Mark Jacobson, Massachusetts Clean Energy Center, Mathematics and Climate Research Network, mitigating climate disruption, Nature's Trust, ocean acidification, ocean warming, Our Children's Trust, Principles of Planetary Climate, quantitative ecology, Ray Pierrehumbert, Reverend Catie Scudera, Robert Young, sea level rise, Steven Chu, sustainability, The Demon Haunted World, the energy of the people, the green century, the right to know, the value of financial assets, tragedy of the horizon, Unitarian Universalism, UU, UU Needham, Wally Broecker, zero carbon | Leave a comment

Humble Alternatives to Daylight Savings Time — Math with Bad Drawings

Humble Alternatives to Daylight Savings Time — Math with Bad Drawings
From the ever clever and entertaining Ben Orlin. And the drawings really aren’t bad.
Posted in Ben Orlin, mathematics | Leave a comment

Representative Deb Haaland, confirmed as Secretary of Interior

(Deb Haaland atop a wind turbine. Credit: Representative Deb Haaland, via Twitter.)

Representative Deb Haaland, member of the Laguna Pueblo Nation, was confirmed as Secretary of Interior. The feelings of happiness which washed over me are too much to describe.

I acknowledge the land in which I am blessed and privileged to reside, that of the Massachusett Tribe at Ponkapoag who have taken care of them as best they could, until the invasion. (See also.)

I celebrate by offering a dance celebration from the Wampanoag Nation, neighbors of the Massachusett Tribe at Ponkapoag.

And, then, a video sketch and capture of Wampanoag Day at Aptucxet:

I quote Timothy Otis Fuller at this time from the top right of my blog pages, saying in his 1886 “A Sketch of the Flora of Needham”:

“Linnaeus, letting fall his hand on a bunch of Moss at his side, exclaimed, ‘Underneath this palm is material for the study of a lifetime’; and if this is true of a handful of Moss, the treasures of a township must be inexhaustible. We need not seek for new worlds to conquer.

They might need not, but Europeans, in their deep ignorance and to their shame, did. And to the very limited degree I can, I bow to Buddha and ask forgiveness, of the Massachusett, the Wampanoag, the Haudenosaunee, whose land I was privileged to reside upon, cherish, and learn of their history for 40 years, and all First Nations, indigenous people who my ancestors so aggrievedly harmed.

Posted in Haudenosaunee, indigenous peoples, Massachusett Tribe at Ponkapoag, Wampanoag | Leave a comment

Cladonia chlorophaea

Posted on by ecoquant | Leave a comment

Field survey update for 2021-03-03 and 2021-03-10: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF)

Online data from principally bryological the longitudinal field survey described here has been updated in its:

with the photos and remarks from 2021-03-03 and 2021-03-10.

The photos are in time order from earliest to latest, top to bottom, left to right. Timestamp and geographic location are stamped in the lower right on the images. The survey began in earnest about 9th-13th December 2020. Images earlier than than were documenting site selection.

A couple of points of note.

First, there is green growth seen at many instances, and close-ups of these have been recorded. There are also several instances of egg-like features, but I do not yet know if these are archegonia or not. I need to become familiar with archegonia from the various genuses and spend some time with a hand lens.

Second, the classification of Site 1, instance C as Myurella julacea was incorrect.  It is a Thuidium, probably Thuidium recognitum. I need to get a sample and verify. This has been reflected in all cases in the spreadsheet.

More time could have been spent at Sites 1, 3, and 4. A lot of time was invested in finding these features and learning how to use the Olympus TG-6 to take macro-photos of them. I will devote more time on 17th March to checking status, and devoting time to hand lens, while taking oral notes, and taking specimens of these back.

Posted in bryology, bryophytes, lichenology, lichens, longitudinal field survey, longitudinal study of mosses, longitudinal survey, longitudinal survey of mosses, phenology | Leave a comment

Professor Tony Seba, update

When Professor Seba says New England has the poorest set of solar and wind resources compared to California and Texas, he primarily means wind, and that’s all land-based. Offshore wind in New England is an amazing resource.

Posted in zero carbon | Leave a comment

“Local hazards grow as Americans trash more”

From Bloomberg, and Jacqueline Davalos, 27th February 2021:

(h/t to the South Shore Recycling Cooperative and its fabulous newsletters. This is from their March 2021 issue.)
Posted in ecomodernism, ecopragmatism, garbage, organic waste, South Shore Recycling Cooperative, sustainability, waste management | Leave a comment

Sir David Attenborough : “… a value on Nature … and through global cooperation”

Posted in American Association for the Advancement of Science, an ignorant American public, an uncaring American public, carbon dioxide, climate change, climate disruption, decentralized energy, Ecology Action, ecomodernism, ecopragmatism, global warming, global weirding, Humans have a lot to answer for, solar energy, wind energy, zero carbon | Leave a comment

New Meetup: Massachusetts Mosses and Lichens

I have started a new Meetup group: Massachusetts Mosses and Lichens.

I am inviting anyone with an interest in mosses and lichens to join in, particularly if you live in the “greater Massachusetts area”. Because of pandemic, there’ll be no in-person meetups for a while, but I’d like to schedule an organizational meeting hosted on my Zoom channel.

The notion is that we get together and talk mosses and lichens and promote interest in them. Each meeting would feature a member — or someone from outside the Meetup — talking about their experience, teaching us, talking about a project, their art, their photography, or books about mosses they’ve read (*). And this would be followed by a Q&A.

After pandemic, we’ll move back outdoors, doing guided tours.

Disclosure: I am not any kind of authority on mosses and lichens. I’m very much an amateur, although my scientific and engineering background makes it easier for me to set up and follow through on scientific experiments than some. I’m still learning common New England mosses. You can see a project I’m doing and some of the equipment and references I use here.

Hopefully, this Meetup will begin to remedy the dearth of organized interest about mosses. There’s also a dearth of professional bryologists and lichenologists. I hope that amateur organizations like this, in association with state parks, national parks, and local communities, can generate more interest, particularly among students.

(*) I am finishing a Kindle version of the book Gathering Moss: A Natural and Cultural History of Mosses by Robin Wall Kimmerer. The book tells of mosses from an indigenous people’s perspective, and also contains much solid science, and beautiful hand sketched illustrations. It also makes great physical science connections, like Kimmerer’s discussion of the importance of living in a boundary layer for mosses. This is something seen in aquatic life, as documented in the book Life in Moving Fluids by the late Professor Steven Vogel. Vogel didn’t mention mosses at all. That’s understandable, but it’s great to see Professor Kimmerer remedying the oversight. Given the kinds of research Vogel did, I can see all kinds of projects exploring this possible with respect to mosses.

Posted in ABLS, American Bryological and Lichenological Society, American Statistical Association, biology, Botany, Brent Mishler, bryology, bryophytes, citizen data, citizen science, ecology, field biology, field research, field science, Hale Reservation, Janice Glime, Jerry Jenkins, lichenology, lichens, longitudinal survey of mosses, macrophotography, maths, mesh models, mosses, Nancy G Slack, National Phenology Network, population biology, population dynamics, Ralph Pope, science, spatial statistics, statistical ecology, Sue Williams, the right to know, Westwood | Leave a comment

Texas. Wonderment.

h/t ClimateAdam.

See also:

Cohen, Judah, Xiangdong Zhang, J. Francis, T. Jung, R. Kwok, J. Overland, T. J. Ballinger et al. "Divergent consensuses on Arctic amplification influence on midlatitude severe winter weather." Nature Climate Change, 10(1), 2020: 20-29.

Ayarzagüena, Blanca, Lorenzo M. Polvani, Ulrike Langematz, Hideharu Akiyoshi, Slimane Bekki, Neal Butchart, Martin Dameris et al. "No robust evidence of future changes in major stratospheric sudden warmings: a multi-model assessment from CCMI." Atmospheric chemistry and physics 18, no. 15 (2018): 11277-11287.

Posted in American Association for the Advancement of Science, Amory Lovins, Bloomberg Green, carbon dioxide, Carbon Worshipers, climate denial, climate disruption, climate economics, ClimateAdam, decentralized electric power generation, distributed generation, electrical energy engineering, electricity markets, energy utilities, fossil fuels, global warming, photovoltaics, solar democracy, solar domination, solar energy, solar power, wind energy, wind power, zero carbon | 1 Comment

Field survey update for 2021-02-24: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF)

Online data from principally bryological the longitudinal field survey described here has been updated in its:

with the photos and remarks from 2021-02-24.

The photos are in time order from earliest to latest, top to bottom, left to right. Timestamp and geographic location are stamped in the lower right on the images. The survey began in earnest about 9th-13th December 2020. Images earlier than than were documenting site selection.

On 24 Feb 2021, snow obscured all but instances 4D, 3A, 3B, and 3D. Site 2 had all instances obscured, but a small portion of an adjacent similar patch was visible and photographed. Much of the work at Site 3 was only possible by approaching the instances from the stream rather than the shore.

Hopefully there will be enough melt next week to get many more instances photographed. As of late on 25 February, instances 4C and 4E are also visible.

Posted in bryology, bryophytes, lichenology, lichens, longitudinal field survey, longitudinal study of mosses, longitudinal survey, longitudinal survey of mosses, phenology | Leave a comment

Why I care about and study mosses

For a guy who has spent most of his professional career developing, studying, and improving engineered systems, software, and applying mathematics to them, the idea of devoting a substantial part of the rest of his life to the study of bryophytes and, more specifically, the subdivision Bryophytina may seem an oddity. After all, I’ve launched a multiyear longitudinal field study of four sites with mosses the main act. Why?

It might begin that Bryophytina as a phylogenetic group originated during the Ordovician period, about 450 million years ago. They are suspected of having changed the Earth’s climate at the time. Nevertheless, as a botanical subdivision, they have seen everything, and have amazing adaptive capabilities, to extreme moisture, to dessication, to heat, to cold. They are both simple in their biological plans, yet innovative, and prudent if not wise.

There is also evidence mosses changed everything, weathering rocks during the Ordovician, when they are believed to have emerged, and that rock drew down atmospheric CO2 which, at the time was around 3000 ppm, about 8 times what it is today:
P. Porada, T. M. Lenton, A. Pohl, B. Weber, L. Mander, Y. Donnadieu, C. Beer, U. Pöschl, A. Kleidon. High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician. Nature Communications, 2016; 7: 12113 DOI: 10.1038/ncomms12113.

And when I say they’ve seen everything, I mean everything. Mosses arose before the evolution of lignin-formation, so before vascular plants and especially trees. And, to quote Dr Neil deGrasse Tyson, “Earth was a different planet” for much of the time:

These are all taken from:

Bender, Michael L. Paleoclimate. Vol. 8. Princeton University Press, 2013.

via the Google online library.

And the above is from:

Parrish, Judith Totman, and Gerilyn S. Soreghan. "Sedimentary geology and the future of paleoclimate studies." Sedimentary Record 11 (2013): 4-10.

Present day mosses obtain many of their nutrients and water from the air, and raindrops, having basic or absent vascularization, some with rhizoids and relying upon cation exchange to obtain nutrients. They have amazing abilities to withstand both drowning and floods as well as desiccation. The moss Polytrichum, for example, rolls its laminae (leaves) up and together to retain water when it is drying out. Note: Laminae are generally but one cell thick!

Mosses come in amazing varieties, and have conquered every land habitat imaginable. In the Arctic they can be the dominant flora (Pope, 2016). They coexist with many creatures, yet are rarely grazed. They are for the most part, heartily communal plants, also coexisting with lichens and each other.

To me, I think the most intriguing aspect is as subjects for quantitative inquiry, counting, and measurement. Mosses are sessile, unless disturbed by water or fauna, such as squirrels scampering up trees. They make interesting photographic subjects, not only by themselves, but as part of a microhabitat. There is the opportunity to try to understand an ecology more completely than is possible in bigger niches, and perhaps to model.

Finally, it turns out we need to more carefully documenting their life cycles, and especially their phenology. On the latter, despite the urgings of Tuba, Slack, and Stark (2011) and others, it hasn’t been studied in depth. Longitudinal studies of the kind I’ve launched aren’t common. They don’t fit well within undergraduate or graduate timelines: They made need a decade or more of dedication, and that means dealing with transitions between students and problems with requiring originality in research, something which afflicts many fields. It seems to me that bringing the phenology of Bryophytina within the scope of the USA National Phenology Network is a reasonable way to proceed.


Posted in American Association for the Advancement of Science, astrophysics, bryology, bryophytes, carbon dioxide, climate, Cosmos, Ecological Society of America, icesheets, longitudinal study of mosses, longitudinal survey of mosses, National Phenology Network, Neill deGrasse Tyson, science | 1 Comment

Moss of the Week, 2021-02-19

Actually, mosses of the week. This pair of communities are part of my longitudinal study of mosses, some Cladonia chlorophaea lichens, and a few Lycopodium obscurum individuals. This is Site 3, community instances A and B.

Sphagnum centrale and Mnium thomsonii

Instance A is Mnium thomsonii (Crum, 2004, pp 256-259; Jenkins, 2021, p 88). Instance B is Sphagnum centrale (Pope, 2016, p 60; Crum 2004, pp 34-37; Jenkins, 2020, p 157). Instance A is interesting because the Mnium suffered a good deal of erosion from flowing water even in the short time after I began observations, as can be seen below:

Platylomella tenax showing water erosion

I captured an MP4 showing the oscillations in M. thomsonii created by the flowing waters:

A question is why does it erode since the habitat is suitable? Perhaps this is typical for Mnium thomsonii and permits it to propagate vegetatively? The other question is that the growth of this Mnium community looks like it took more than a year. Why did it get eroded now? Or does it often get eroded and just grows back?

This kind of erosion at this stream isn’t limited to the Mnium. There is a Climacium americanum at Site 3, instance D, which originally looked stable yet I reported it moved a meter on 13th January 2021. Emeritus Professor Janice Glime discusses the stream environment in Chapter 2 of Volume 4 of her mulivolume treatment of bryophyte ecology.

Mnium thomsonii
Mnium thomsonii, close-up, showing thicker margins of leaves, with different colors
Posted in Botany, bryology, bryophytes, citizen science, field biology, field research, field science, longitudinal field survey, mosses, National Phenological Network, phenology | 1 Comment

Wind turbines in winter

Drone footage in first from Peter Sinclair of Climate Denial Crock of the Week.

(Skip to time step 80 in the next if you just want to see wind turbines.)

Photo by Dennis Schroeder / NREL, 2016.

Five GE Halide 6MW turbines, near Block Island, RI.

Anholt offshore wind farm, Ørsted.

Posted in Bloomberg Green, climate economics, ecopragmatism, engineering, Orsted, wind energy, wind power, zero carbon | Leave a comment

Field survey update for 2021-02-17: Bryophytes, lichens, and Lycopodia in winter (LoSoMaaCoF)

(Updated, 2021-02-23)

Online data from principally bryological the longitudinal field survey described here has been updated in its:

This post is simply a matter of record, as are the additional rows in the spreadsheet.  There were no observations on these days and no photos taken.  This is due to appreciable snowfall which is masking visual access to the sites.

Interested readers should monitor the above spreadsheet.

When observations resume, a new weekly report will be posted here.

I am expecting to do a field survey to check on the sites on Wednesday, 24th February 2021, no matter what the local conditions appear to be.

Posted in bryology, bryophytes, lichenology, lichens, longitudinal field survey, longitudinal study of mosses, longitudinal survey, longitudinal survey of mosses, phenology | Leave a comment