sysop408, (edited ) to random
@sysop408@sfba.social avatar

A lot of people still think about Covid as a wash your hands and socially distance kind of thing.

Chances of getting Covid from touching something is near zero and we're far more likely to catch it from someone we can't see because it can stay in the air for a long time, drift long distances, and remain potent long after a contagious person is gone (as much as 2 hours).

This is why improving ventilation is one of the most important things you can do to reduce risks of infection for yourself and people around you. With good air flow, an infectious person is less dangerous. Infected air is diluted and can't linger to keep infecting.

I took a variety of CO2 readings to estimate indoor air quality. Based on these readings, places I wouldn't want to be unmasked would be: house gatherings, offices, meeting rooms, conventions, public transit, a plane, funerals.

Places that may not be as risky as originally believed are: supermarkets, pharmacies, and restaurants.

breadandcircuses, (edited ) to environment

Scientists are now saying we are “out of time” to keep global heating at under 1.5°C. It’s simply too late. We’ve delayed any action far too long.

All our talk and meetings and phony “Net Zero” pledges don’t mean anything to an overstressed climate system that is rapidly breaking down.

You can’t fool Mother Nature.


The target of keeping long-term global warming within 1.5 degrees Celsius (2.7 Fahrenheit) is moving out of reach, climate experts say, with nations failing to set more ambitious goals despite months of record-breaking heat on land and sea.

“We’ve run out of time because change takes time,” said Sarah Perkins-Kirkpatrick, a climatologist at Australia’s University of New South Wales.

As climate envoys from the two biggest greenhouse gas emitters prepare to meet next month, temperatures broke June records in the Chinese capital Beijing, and extreme heat waves have hit the United States.

Parts of North America were some 10C (18F) above the seasonal average this month, and smoke from forest fires blanketed Canada and the US East Coast in a hazardous haze, with carbon emissions estimated at a record 160 million tons.

In India, one of the most climate-vulnerable regions, deaths spiked as a result of sustained high temperatures, and extreme heat has been recorded in Spain, Iran, and Vietnam, raising fears that last year’s deadly summer could become routine.

Countries agreed in Paris in 2015 to try to keep long-term average temperature rises within 1.5C, but there is now a 66% likelihood the annual mean will cross the 1.5C threshold for at least one whole year between now and 2027, the World Meteorological Organization predicted in May.


FULL STORY -- https://www.aljazeera.com/news/2023/6/30/out-of-time-temperature-records-topple-around-the-world

breadandcircuses, (edited ) to environment

The article I highlighted in this post — https://climatejustice.social/@breadandcircuses/110939408594723941 — contains an image I’d like you to look at (see below).

In this overview of annual global energy consumption, there is a slight dip in 2020 when the COVID lockdown impacted energy use across the board. But notice two things:

1️⃣ That dip in 2020 quickly repaired itself in 2021, with fossil fuel use continuing its upward trajectory as if nothing had ever happened.

2️⃣ Energy produced by renewables is still minuscule compared to energy derived from fossil fuels. Renewables-based energy sits like tasty frosting atop the massive poisonous cake that is fossil fuel-based energy.

Over 80% of the world’s energy continues to be sourced from oil, coal, and gas. Only about 5% comes from solar and wind combined.

That’s not nearly good enough, and it’s why we are all passengers on a train heading straight off a cliff.

CHART SOURCE: https://ourworldindata.org/grapher/energy-consumption-by-source-and-country?stackMode=absolute

NOTE: My description of the chart is adapted from Steve Genco’s (@sjgenco) in this article — https://archive.ph/tjEwY

breadandcircuses, to environment

It's not complicated. Anyone can understand that when forests burn, it's a LOSE-LOSE proposition for the climate and the environment.

We lose trees and grasslands and sometimes also peat that have been storing carbon, AND we send that previously stored carbon into the atmosphere, thereby sharply increasing CO2 emissions, which then push temperatures up even higher, drying out more of the forests and raising the risk of lightning storms which will ignite more fires — a massively destructive vicious cycle.

"Wildfires are set to DOUBLE Canada's climate emissions this year"
https://12ft.io/proxy?q=https%3A%2F%2Ffinancialpost.com%2Fcommodities%2Fagriculture%2Fwildfires-double-canada-climate-emissions

It's almost impossible to imagine anything worse than burning boreal forests, but that's what is happening, both in Canada and in Siberia. And STILL we keep on drilling for more oil in Alaska, mining the tar sands in Alberta, and fracking the hell out of everywhere else. Why? Because capitalism! 💰💰💰

MORE ON BOREAL FORESTS --
"Two of the countries at greatest risk are Russia and Canada, and not coincidentally, these are two places where the fossil fuel industry is making bad conditions even worse."
https://climatejustice.social/@breadandcircuses/110423387240605334

MORE ON FRACKING --
"12 US states where fracking is most prevalent"
https://stacker.com/science/12-states-where-fracking-most-prevalent

christianschwaegerl, to TeslaMotors German
@christianschwaegerl@mastodon.social avatar

Ich hab mir für euch die Pläne von Wirtschaftsminister zur Speicherung von unter dem Meer genau angeschaut – die Analyse ist frisch bei erschienen.
Zwei wichtige Punkte: ist da nicht als befristete Nischenlösung geplant, sondern als neue Großtechnologie. Und der Ausschluss von CCS an Land erhöht Druck auf Meeresumwelt, wo – entgegen Aussagen – Pipelines auch durch Schutzgebiete gebaut werden dürfen.
https://www.spektrum.de/news/ccs-was-die-kohlendioxid-verpressung-fuer-deutschland-leisten-soll/2208908

brainwane, to random
@brainwane@social.coop avatar

cautious folks:

Carrying a CO2 monitor helps me check how safe the in a space is, and lower or raise my cautions accordingly. (Details: https://www.harihareswara.net/posts/2023/my-current-covid-risk-approach/#ventilation ) Super useful.

I use and like the monitor. The 4 is usually USD$249. It's on sale, direct from the manufacturer, till September 17, for $184.35, with free shipping in the US.

https://shop.aranet.com/north-america/product/aranet4-home

Or from Amazon for $197: https://www.amazon.com/exec/obidos/ASIN/B07YY7BH2W/ref=nosim/0sil8 (Might be today only - Sept 7th.)

Aranet CO2 monitoring app screenshot from one week in May 2023. Almost all readings are in the green range, under 1,000 ppm. A few hours in the yellow and red ranges, about 1,000 to 2,100 ppm, are during airplane travel. The 5,905 ppm peak is during a car ride.

breadandcircuses, to climate

Why are so many climate scientists so scared and so angry?

Maybe it's because they know better than most of us how bad our situation today truly is, and how horribly we've been betrayed by our so-called leaders.

Here's an excerpt from an excellent piece on this subject by Alan Urban...


Even if the planet stopped getting warmer right now, we would still be in big trouble. The ice caps would keep melting and sea levels would keep rising.

Look at what’s happening at a mere 1.2°C of warming. We’re already seeing some of the worst heat waves in human history, not to mention record-breaking floods, droughts, wildfires, and water shortages.

But of course, warming isn’t going to stop at 1.2°C. Because of the heat we’ve already trapped in the atmosphere, and because we continue to emit huge amounts of greenhouse gases every year, the climate is warming exponentially.

All of these climate-related crises are stretching farms to the limit, yet this is just the beginning. As crop yields decline and the population grows, we will see food insecurity get worse and worse until we’re in a global famine.

And that right there is why climate scientists are scared. They understand that human civilization was born during the Holocene, when global temperatures were very stable and stayed within a range of about 1°C.

As we push the planet out of that range and raise the temperature about 50 times faster than would occur naturally, it will become harder and harder to produce enough food to feed everyone, and this will lead to social instability, political upheaval, the worst migration crisis ever, and wars over resources.

Disasters that weren’t supposed to happen until we reached 1.5°C are happening now, so we can only imagine what will happen when we hit 2° or 3°C.

This is why top scientists from around the world are warning us that we face a ghastly future filled with untold suffering. They’ve been telling us over and over, year after year, summit after summit, that we have to stop burning fossil fuels as quickly as possible. But as you can see [below], the world keeps ignoring them.


FULL ARTICLE -- https://12ft.io/proxy?q=https%3A%2F%2Fmedium.com%2F%40CollapseSurvival%2Ffaster-than-expected-why-climate-scientists-are-so-scared-985db6579f2e

AlexSanterne, to random French
@AlexSanterne@astrodon.social avatar

Bilan de gaz à effet de serre de 4,3 t CO2eq. / an 💪, et vous ?

https://nosgestesclimat.fr/

(Sans déplacements pro, 4,6 t CO2eq avec).

AlexSanterne, to Trains French
@AlexSanterne@astrodon.social avatar


Une activité de bas carbone est possible ! En 2019, j'ai réalisé que mes déplacements professionnels émettaient beaucoup trop de gas à effet de serre. J'ai décidé alors de ne plus prendre l', définitivement. Mes déplacements professionnels (et perso) indispensables se font maintenant en 🚅 .

Résultat : les émissions de de mes déplacements ont chutés d'un facteur de plus 40 (eq. à 98%) !! Sur l'année 2023, elles n'ont pas dépassés 200 kg CO2eq.

1/n

breadandcircuses, (edited ) to environment

For those who haven’t seen it before, here is my review of The Climate Book, by Greta Thunberg…


I've read dozens of books about climate change, and this one is easily the best. It's packed with information, written to be accessible for anyone from high school (or a bright middle school student) on up, and most importantly it does NOT shy away from the true severity of our situation and the imperative need not only for individual action but for system change.

It's stunning to me that a young woman who just turned twenty years old was able to pull together such a massive project — coordinating the submissions of more than a hundred scientists, activists, and educators — while also writing a large part of the content herself. A truly amazing accomplishment.

This essential work should be in every school library and in every home. It will remain relevant for years to come, I believe, because although there certainly is plenty of data, mostly it's about ideas which will never age.


https://bookwyrm.social/user/BreadAndCircuses/review/1196642/s/essential-reading#anchor-1196642

breadandcircuses, to environment

I've figured it out! 💡

The best way to stop carbon from accumulating in the atmosphere is to: 1) stop drilling for oil, 2) stop fracking for gas, 3) stop digging for coal, and 4) stop burning fossil fuels.

It's really not a complicated formula.

breadandcircuses, to science

Here is a somewhat comical but also highly indignant commentary about the folly of “Net Zero by 2050”…


We insiders — by which I mean anyone paying attention — know that the plan to mitigate the climate catastrophe with Net Zero by 2050 is complete bullshit. But maybe you’ve absorbed that knowledge without really understanding why. So let’s talk about it.

What does Net Zero actually mean? Net Zero is the point at which the CO2 burden in the atmosphere is no longer increasing. We’re still putting some up, but we’re also taking just as much out.

This definition immediately tips off two major problems.

The “still putting some up” part is a major issue because the fossil fuels industrial/political complex hears that and stops listening. The “still putting some up” part is their job, and somebody else can do the “take just as much out” part.

In other words, it's Business As Usual for fossil fuels, including continuing growth. Someone else can do the preserving-life-and-the-climate part.

The second obvious problem with Net Zero is the very idea of “taking just as much CO2 out of the atmosphere each year as the fossil fuel industry is adding to it each year.” We know of only two ways to reduce the CO2 load of the atmosphere. One is time. But CO2 stays in the atmosphere for thousands of years, so time is not on our side.

The other way to reduce CO2 is carbon capture and sequestration (CCS). Carbon is “captured” from the atmosphere using a chemical solvent that absorbs CO2, after which it can be buried in the ground where the CO2 will stay safely out of the atmosphere virtually forever.

CCS technology both does and does not exist.

CCS does exist in that there are many ingenious systems for doing it, including several pilot programs demonstrating direct air capture, the holy grail of CCS. Many fossil fuelled electricity generation plants have been removing CO2 from their smokestack emissions for decades. Unfortunately, much of the currently captured CO2 is being injected into played-out oil wells, forcing more of the remaining oil to be recoverable, to burn as fuel. Totally self-defeating, as far as reducing the CO2 load in the atmosphere.

But CCS also does NOT exist in terms of a significant contributor to Net Zero. They remove so little CO2 from the atmosphere, and at such a cost, as to make them completely impractical. To make a dent in carbon emissions, hundreds of thousands of CCS plants are needed, if not millions. The cost is prohibitive. Not to mention the carbon costs of manufacturing all those plants.

But surely CCS technology will improve over the next decade or two. Maybe someone will even find a miraculous breakthrough that will make it truly practical?

Sorry, but no. It’s not that there hasn’t been enough research into CCS. It has been heavily researched and the science is known. It’s actually some pretty simple chemistry. We can tweak around the efficiency edges, but there are no breakthroughs waiting in the wings to be discovered.


FULL ARTICLE -- https://lannierose.medium.com/net-zero-by-2050-get-the-joke-946c2d0c0530


scy, to random German
@scy@chaos.social avatar

Samma, ich hab jetzt ne halbe Stunde lang gesucht… Gibt es nirgendwo eine Website mit live -Konzentrationen in Deutschland und/oder der Welt?

Wichtig dabei: Live. Momentaufnahmen. Nicht den Tagesdurchschnitt, für den hab ich mehr als genug Websites gefunden. Der interessiert mich aber nicht.

Ich brauch entweder aktuelle Momentaufnahmen oder den Verlauf über den Tag, nicht gröber als ein Wert pro Stunde aufgelöst, weil ich die Schwankungen über den Tagesverlauf sehen will. Tipps? :BoostOK:

breadandcircuses, (edited ) to random

Private jets are a luxury for the ultra-rich who wreck the planet with destructive lifestyles.

North America (basically the USA) is home to more private jets than all other regions of the world COMBINED.

Private jets are ~10 times more polluting per passenger than scheduled flights, and 50 times more than an average train ride.

It's time to

mikeblake, to random

levels over the past decade.
Legend showing lines for each year on grid
y azis: co2 levels
x axis: Month

Usual late May peak seems to be drifting later each year. Also noticeable slope up for this year , 2023.


breadandcircuses, to climate

Here's part of the introduction to an article describing "Climate 'solutions' that don’t help"...


Many shiny new 'green' ideas do more to preserve fossil fuels than to replace them.

The world continues to face a major obstacle to addressing the climate crisis: deliberate distraction with a proliferation of new whiz-bang technologies and ideas.

Some are well-intentioned, some are strategic, some delusional, but most are outright greenwashing to justify the continued use of fossil fuels and to distract from the inevitable move to less expensive renewable energy.


All the items on their list --

🔴 The mother of all distractions: Carbon Capture and Storage

🔴 Deceptively distracting: Dirty hydrogen branded as “clean” by its proponents

🔴 Net nothing: 2050 Net Zero targets

🔴 BS: Chevron’s “renewable” cow dung

🔴 Silly: Renewable race fuel

🔴 Embarrassing: Exxon’s Ill-fated green algae gas

🔴 Most intense distraction: “Least carbon intensive” oil and gas from Saudi Arabia and the UAE

🔴 Most annoying: A 50 billion tree planting project

🔴 Endlessly distracting: Traditional fission nuclear power

FULL ARTICLE -- https://www.climateandcapitalmedia.com/ten-climate-solutions-that-dont-help/

tagesschau, to random German
@tagesschau@ard.social avatar

Tanken und Heizen wird teurer: CO2-Preis steigt ab 2024

Die Bundesregierung hat Details des Klima- und Transformationsfonds beschlossen. Im kommenden Jahr steigt der nationale CO2-Preis deutlich - was das Tanken und Heizen mit fossiler Energie verteuert.

➡️ https://www.tagesschau.de/wirtschaft/verbraucher/co2-preis-energie-100.html?at_medium=mastodon&at_campaign=tagesschau.de

FabianLaasch, to tesla German
@FabianLaasch@mastodon.green avatar

“Wer in der Dunkelflaute sein Elektroauto lädt hat einen , der mehr emittiert als ein hochmoderner

C.

Na dann rechnen wir das doch mal aus:

Mein Model3 hat einen Langzeitverbrauch von 15,0kWh. Ich habe 8% Ladeverluste gemessen, macht 16,2kWh Verbrauch auf 100km.

Der höchste CO2 Ausstoß in diesem Jahr lag bei rund 650g CO2/kWh.

Wenn man in dieser Ausnahmesituation sein Auto lädt, liegt man bei 10,5kg CO2 auf 100km. /1

breadandcircuses, to environment

Remember what Greta Thunberg has said?

"I don't want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. And then I want you to act."

The opinion piece below from Bloomberg/WaPo seems to agree with her...


"Global Heat Records Are Falling. A Little Panic Might Be in Order."

The planet could easily set a record-high average temperature in 2023, especially with an El Niño weather pattern kicking in later this year. We have already suffered through the hottest early June on record, with global land temperatures briefly touching 1.5C above the pre-industrial average. Ocean temperatures this spring have been the hottest ever at this time of year, in records going back 174 years.

Many people, including myself, have warned against panicking about such stunning new highs, given the temporary nature of El Niño’s boost. Even if we temporarily hit 1.5C of warming this year, it will still be theoretically possible to avoid long-term warming beyond that level and all the catastrophic consequences that would come with it.

But first we must kick our fossil-fuel addiction and stop spewing greenhouse gases into the atmosphere. And judging by how little the world’s policymakers seem to be interested in taking such steps, perhaps just a smidgen of panic might be helpful.

Scientists agree the world must zero out its emissions by 2050 in order to keep warming to 1.5C, a target set at the Paris climate accords in 2015. And so far 95 countries have made "net-zero" pledges.

That’s the good news. The bad news is that the vast majority of those pledges aren’t credible. Current policies and practices have the world on pace to hit nearly 3C of warming by the end of the century. Even the most dependable net-zero pledges would still lead to close to 2.5C of warming, a recent study found.

One big problem is that significant numbers of "net-zero" countries have zero plans to stop burning oil, gas, and coal, according to a new study from the Stockholm Environment Institute. Of the 95 pledging countries, 45 talk about "continuing or expanding fossil-fuel production" right there in their net-zero pledges, according to the study. Only 5 of the 95 countries, in contrast, discuss transitioning out of fossil-fuel production as part of their net-zero pledges.


FULL ARTICLE -- https://archive.is/uz5Nr#selection-341.0-341.66

tagesschau, to random German
@tagesschau@ard.social avatar

Umfrage zeigt große Skepsis in Hinblick auf Klimageld

Das von der Bundesregierung geplante Klimageld trifft bei der Bevölkerung auf Skepsis. Viele Bürger wünschen sich, es solle für klimafreundliche Maßnahmen verwendet werden.

➡️ https://www.tagesschau.de/wirtschaft/verbraucher/klimageld-ampel-co-2-preise-klimawandel-kosten-100.html?at_medium=mastodon&at_campaign=tagesschau.de

#Klimageld #Ampelkoalition #Klimawandel #CO2

helenczerski, to climate
@helenczerski@fediscience.org avatar

Carbon dioxide removal (sucking CO2 out of the atmosphere to store somewhere) is now a huge topic of discussion in tech/carbon circles but the public hears almost nothing. We need to fix that - the timescales, costs, scaling and downsides all need to be debated publicly, and not just with a commercial slant. We (me, Rob Bellamy & Juerg Matter) were doing our bit at the Cheltenham Science Festival today, during a discussion brilliantly titled “Catch C if you Can”.

breadandcircuses, to environment

Climate optimists like to claim that as soon as we reach “net zero” — the point when we are (theoretically) emitting less CO2 than the amount being absorbed by oceans, rocks, or plants, and taken out of the atmosphere through carbon capture — then global warming will stop almost immediately.

It’s a nice message, one intended to make us feel better, reassured that our leaders know what they’re doing. Don’t worry, we are told, everything is under control. By 2050, if not sooner, they’ll have the situation turned around.

In the meantime, we can all relax and go ahead with Business As Usual. 😃 Keep shopping, keep buying, keep driving, keep flying. And don’t forget to do your part: buy those paper straws and recycle that water bottle!

BUT — there are big problems with this phony net zero claim, and the way countries report their emissions is one of them. Investigators have found huge discrepancies accruing through the use of spurious carbon offsets, outsourcing, and other UN-approved loopholes. Also, CO2 emissions from the military are not required to be included, nor are emissions from international trade.

See — https://www.theguardian.com/environment/2022/oct/08/greta-thunberg-climate-delusion-greenwashed-out-of-our-senses

Some estimates suggest that actual emissions could be at least twice as high as what’s being shown in the official reports. No wonder global temperatures keep rising even though we’re constantly assured that great progress is being made.

In addition, there’s a risk that climate change itself will trigger “natural” emissions of greenhouse gases as peat bogs dry out, as drought-weakened forests burn, as permafrost melts, and as the sea floor warms, releasing previously frozen methane clathrates. So it’s not just the emissions of human industry we need to worry about.

See — https://12ft.io/proxy?q=https%3A%2F%2Fwww.wired.com%2Fstory%2Fthe-arctic-is-a-freezer-thats-losing-power%2F

The point is, net zero is NOT zero. Don’t fall for their lies. It’s time for real change, for system change. We must demand the end of and a pivot toward .

breadandcircuses, to environment

The USA is now the world's top exporter of liquefied natural gas.

🇺🇸 USA! 🇺🇸 WE’RE NUMBER ONE! 🇺🇸 USA! 🇺🇸

But if you look more closely, that’s not something worth celebrating…

https://grist.org/energy/louisiana-liquified-natural-gas-terminal-lng-gulf-coast/

breadandcircuses, to environment

Yikes. As if we didn't already have enough to worry about...


"Wood isn’t the climate-friendly material you think it is"

A new study shows that cutting down trees for paper, furniture, and fuel emits three times more carbon than flying.

Whether used to heat your house or build it, wood is often touted as carbon-neutral, especially by biofuel and lumber companies and even some environmentalists. The logic seems simple enough: Sure, logging unleashes planet-warming carbon into the air, but that can be replaced with new trees that suck carbon back out of the air.

But this doesn’t reflect how the emissions from harvesting wood actually work, according to a paper published this week in Nature. Even when the carbon captured by new trees is taken into account, wood consumption accounts for about one-tenth of the world’s annual greenhouse gas emissions, the study’s authors found — less than electricity and heat generation, but more than passenger cars.

The emissions associated with timber harvests mainly come from burning logs and pellets for fuel and from rotting branches, leaves, and roots left in the forest or tossed in landfills, where they decompose and release carbon into the air.

Global demand for wood will grow by 54% between 2010 and 2050, largely driven by fuel and timber products like wood chips, as well as paper and cardboard. Logging to meet that demand will cover an area roughly equivalent to clear-cutting the entire continental U.S. The resulting climate pollution is likely to measure 3.5 to 4.2 billion tons of carbon dioxide each year — about three times the emissions from aviation and roughly equal to the deforestation caused by agriculture.


FULL STORY -- https://grist.org/economics/wood-climate-friendly-logging-emissions/

pallenberg, to random
@pallenberg@mastodon.social avatar

So viel CO2 produziert unser digitales Leben! Denke jedoch,dass es viel mehr ist, alleine wenn ich an die exponentielle Zunahme von 4K-Formaten im Streaming denke.

P.S. Das ist die Infografik der Woche meiner aktuellen MeTacheles-Ausgabe "Ist Bluesky DIE Twitter-Alternative?" 👉 https://t.ly/BlueskyTalk

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