BC ECONOMY
Saved by @Alex1Powell

EVs DO NOT EMIT MORE PM

Recently @OECD published a report about particulate matter (PM) from road transport. Newspaper headlines blared that electric vehicles where worse than combustion vehicles. That conclusion was wrong according to the report itself.

Let me show you.

 The report (published december 7) can be found here: https://t.co/1HpicKexOt
It's main point is well taken: as cars get cleaner, fine particles emitted by brakes, tires and road surfaces will become more important.
The table comparing electric and combustion engines is on page 92. I took averages of low and high values to get the graph in the first tweet.
I merely took the averages. To get this.
I think it is a terrific report that pulls together a LOT of literature on fine particles that cars spew into the air and that make us sick.

We have ignored this problem for too long, and there's more here than simply exhaust!
I have just two gripes with the article:

1) Electric vehicle weight
It estimates batteries at 10 kg/kWh when in reality it's already below half of that. So it makes electric vehicles much too heavy and doesn't take into account that in 2030 they will be much lighter still.
2) Simply comparing grams
We know that the stuff that comes out of the exhaust pipe is really bad for your health.

How that compares to sand and rubber from the road (gram for gram and particle for particle) is still completely unclear. They state this clearly themselves.
We know that a lot of the stuff in there can be bad for your health (see table).

But how much is how bad and what is the impact of particle size? For the stuff that's not from the exhaust we basically have no idea.
These studies about road dust are the closest the report comes to quantifying this but as you can see it's a mess.
Even how vehicle characteristics influence PM is only very vaguely know.
So for me the summary:

We know particles emitted from the road and the wheels of cars make us sick but that's about it. More research is urgently needed so we can avoid millions of deaths.
And there is a LOT we can do!

By switching to electric vehicles we are probably eliminating some of the most harmful emissions (from tailpipes and brake pads).

We could try to make tires more wear resistant (probably not a top priority of manufacturers).
We can find out what materials in tires are worst and leave them out.

We can construct roads in a way that traps part of the particles or we might even vacuum them up before they are released out into the open.https://t.co/mxA62vhuDG
Most importantly we should use lighter cars. So a monster like this Cybertruck certainly doesn't make your neighborhood safer or healthier.
Bottom line: electric cars are less bad for the climate and air quality than regular cars, but once they eliminate tailpipe and brake pad emissions we should focus on emissions from tires and roads. And that's almost virgin territory. Time to get to work on that!

More from Economy

Emnet Negash
Emnet Negash
@emnet_negash
What happens with the limited volumes of food aid that are sent to Tigray?

Testimonies on aid to the war-affected Tigray &

Shire: 7 kg of wheat were required to sign for 15 kg. If they refused to sign for 15 kg they were denied the 7 kg

IDPs in Shire: Currently around 80 000 displaced Tigrayans in Shire, spread across three different schools

Addi Da’iro: “Residents were denied food aid after the inhabitants refused to appoint PP officials as administrators. The residents demanded the evacuation of Eritrean soldiers instead.”

Aksum: "I heard there have been food aid of 15 kg of grain per family, and only once. Neither I, nor my relatives have received aid. No idea about how many families received that 15 kg of food aid. How many days would that last? Who takes the rest? Of course, the Eritreans?”

Adwa: “Last time, they made us sign 15 kg while giving only 7 kg”.
ECONOMY
Rugilandavyi Barabona \U0001f1f9\U0001f1ff \U0001f1e7\U0001f1ee
Rugilandavyi Barabona ...
@rugilandavyi
‼️𝗦𝗖𝗔𝗠/𝗙𝗥𝗔𝗨𝗗/𝗖𝗢𝗡
So there is a self proclaimed successful business woman that started her business ventures at 15 y/o with $5 (=8000Tsh🤡) as per 2013 exchnange rate, now in 2020 she is 22 y/o and allegedly revenues millions of dollars from her many businesses


She claims to have had 25 businesses, yes 25 businesses but now only has 7 that are running successfully 24/7 earning her millions of dollars in revenue.

I have no doubt that she has been hustling with a lot but that does not legitimise any of those hustles as most were shady.

Call me a hater/jealous/poor/broke or whatever but I know a scammy business when I see one and my concern is not a personal matter against her but rather people who fall for the rags to riches story and therefore pay her for business mentoring/wealth management

The following are just few among many red flags about this person's businesses, I welcome any others to contribute in this thread however they want but just keep it respectful.

🚩 Stealing photos from the Internet and editing her name on them for her Ad campaigns, branding them as if they were her actual products and projects while they're not. You source most of her posts just by a Google image search . And they have nothing to do with her.
ECONOMY
Advertisement
John Tuld - Lockdown Informer
John Tuld - Lockdown I...
@BradHuston
Alright. I've got that out of my system. Happy Thanksgiving and back to work here with a Early Black Friday pallet cleansing mega thread with a Cornucopia of thoughts on 2021. First, precious metals aren't dead. Yes, Bitcoin is stealing gold's thunder as a... /1

...currency alternative but it's not going away as a dollar hedge though I see Bitcoin likely to outperform gold in 2021. That said, gold could be up over 50% by the end of next year as Yellen and Powell (Jack and Jill) are climbing the stimulus hills. Meanwhile.. /2

...silver really should kill it next year. Solar is heating up, not just with Biden's win, but globally, & with pent up demand unleashed as lockdowns either relax or get tossed aside via polite revolts. Industry is going to boom and with globalists back in business so are... /3

...green energy and rare earth metals. Yeah, looking at you $MP on rare earths and - dare I say it - $AG and miners might have their year come summer of 2021. Specs are going to sniff that out in January so look for December tea leaves on the metals. No shame in buying $SLV... /4

....but I really like playing options for it. Speaking of lockdowns, no I promised to behave, I think the by-product of lockdowns ending is that the torturous path of a decade plus of "deflation" (in name only really) dies in a supernova heat death of feels good man spending. /5
ECONOMY
MIT Technology Review
MIT Technology Review
@techreview
To see how the innovation economy has left much of the US behind, we traveled to the small town of Bryan, in northwestern Ohio's Williams County. This is a thread about how to fix what the innovation economy broke about America.

This is Valerie. She’s 46 and has worked all her life—three jobs currently—yet she has just $65 in her checking account. Her husband works full time at a metal fastener plant.


Altogether, after health insurance premiums but before taxes, Valerie and her husband make about $45,000 a year.

The story of her working life is also the story of Bryan. The town is broken in some of the same ways that much of the rest of the country is broken. Understanding what broke Bryan is crucial to understanding how it might be fixed.


For decades, America’s political and business leaders acted as if places like Bryan didn’t matter.
ECONOMY
Ricardo Reis
Ricardo Reis
@R2Rsquared
** MMT is the new supply-side economics
Forty years ago, some economists started from an uncontroversial (but important) result: a lower tax rate raises the tax base, so revenues won't fall as much. But then they ran with it, predicting tax rate cuts could raise revenues.

1/13

The 80s supply-siders went to the limit and came up with a motto: lower taxes will lower deficits as a norm, not an exception. Many economists shouted this was backwards. It was an implausible limit case. Textbooks called them "charlatans and cranks" or "silly".
2/13

In 80s debates, supply-siders would often fall back to "you don't understand me", repeating "Laffer curve!" endlessly, or stating vacuous accounting identities about how the government collect taxes. Their extreme prediction was repeatedly proven wrong by theory and data.
3/13

But they had popular hero figures (Laffer, Moore), and an eager political audience that would use any argument to cut taxes. Eventually, they inspired new good research, and helped in swinging the pendulum of policy debates to include some valid supply considerations.
4/13

Yet, supply-side economic ideas also contributed to a massive rise in US public debt in the last 40 years. Right-wing governments became as prone to have large public deficits as left-wing governments, in the pursuit of cuts in taxes.
5/13
ECONOMY

You May Also Like

sriram
sriram
@SriramKannan77
12 Azhwars (Alwars)

The 12 Azhwars, (the Main composers of Naalayira Divya Prabandam - 4000 poetic Rhymes) are known as Nityasuris or Divyasuris; those who reside permanently with the Lord in His Heavenly abode.


They have incarnated as Azhwars -Vasihnavite Saints - to propagate Bhakthi Marga, devotion to Lord Vishnu.

Alwars have dedicated their lives towards Lord Sriman Narayana and they led their life by praising Him.

These Alwars were born in various parts of our country but they were all united in a common subject, ie dedicating their lives and praising the Lord.

Poigai Alwar, Bhoodath Alwar and Pei Alwar are collectively called as "Mudhal Alwars" were found in the same period of time.

Thirumazhisai Alwar, who thought the Perumal as his friend and has sung Mangalasasanam on Perumal.

Thirumangai Alwar was a great king and later, changed his life to work for the Perumal and for his bhaktaas.

Thondaradippodi Alwar, who is also named as "Vipra Narayanar" led his life as the servant to the God and did service to Him by offering beautiful Garlands.
ALL
Lumina\u2728
Lumina✨
@Anaphora_Lumina
I present to you all, my (possibly) superthread On how and why the Unknown God from Genshin Impact, and The Herrscher of Void/God Kiana/Sirin from Honkai Impact!

First off! We’ll start with the obvious things that constitute a possible connection.

They share the same Japanese Voice actress! Rie Kugimiya.
Usually this is a stretch reason, but considering everything else, it’s not unlikely that it’s the same character.

Secondly, their Appearances.
The both have very long white hair with identical bang style, and a very noticeable small piece of hair on top that curls upwards. That’s a defining part Of all of Kiana’s hairstyles, and for it to be shared with this god says something.


Another notable thing is their eyes. They both have Glowing golden eyes with very similar appearances. They contain a ring, and a 4-point star pupil. Resemblant of a scope if you will. That’s The Herrscher of Void’s defining characteristic


If you’d even like to take a look at their outfits, there’s resemblances including the black fur collar, the designs on the torso and chest, and the use of something similar to coat tails/skirt. The Herrscher can change their outfit and they aren’t stuck with one. Sirin does this
CULTURE
Advertisement
Cookie Cyboid
Cookie Cyboid
@CookieCyboid
“Why are Tumblr and Facebook cracking down on sex so much? And why is Facebook in so over zealous about it? It’s all Apples fault!” Etc etc

I can explain all. It is largely the fault of a set of US laws called SESTA and FOSTA.
TECH
Billy Bostickson \U0001f3f4\U0001f441&\U0001f441 \U0001f193
Billy Bostickson 🏴👁&👁 ...
@BillyBostickson
@EricTopol @NBA @StephenKissler @yhgrad B.1.1.7 reveals clearly that SARS-CoV-2 is reverting to its original pre-outbreak condition, i.e. adapted to transgenic hACE2 mice (either Baric's BALB/c ones or others used at WIV labs during chimeric bat coronavirus experiments aimed at developing a pan betacoronavirus vaccine)

@NBA @StephenKissler @yhgrad 1. From Day 1, SARS-COV-2 was very well adapted to humans .....and transgenic hACE2 Mice


@NBA @StephenKissler @yhgrad 2. High Probability of serial passaging in Transgenic Mice expressing hACE2 in genesis of SARS-COV-2


@NBA @StephenKissler @yhgrad B.1.1.7 has an unusually large number of genetic changes, ... found to date in mouse-adapted SARS-CoV2 and is also seen in ferret infections.
https://t.co/9Z4oJmkcKj


@NBA @StephenKissler @yhgrad We adapted a clinical isolate of SARS-CoV-2 by serial passaging in the ... Thus, this mouse-adapted strain and associated challenge model should be ... (B) SARS-CoV-2 genomic RNA loads in mouse lung homogenates at P0 to P6.
https://t.co/I90OOCJg7o
ALL
Zena Hitz
Zena Hitz
@zenahitz
I just finished Eric Adler's The Battle of the Classics, and wanted to say something about Joel Christiansen's review linked below. I am not sure what motivates the review (I speculate a bit below), but it gives a very misleading impression of the book. 1/x


The meat of the criticism is that the history Adler gives is insufficiently critical. Adler describes a few figures who had a great influence on how the modern US university was formed. It's certainly critical: it focuses on the social Darwinism of these figures. 2/x

Other insinuations and suggestions in the review seem wildly off the mark, distorted, or inappropriate-- for example, that the book is clickbaity (it is scholarly) or conservative (hardly) or connected to the events at the Capitol (give me a break). 3/x

The core question: in what sense is classics inherently racist? Classics is old. On Adler's account, it begins in ancient Rome and is revived in the Renaissance. Slavery (Christiansen's primary concern) is also very old. Let's say classics is an education for slaveowners. 4/x

It's worth remembering that literacy itself is elite throughout most of this history. Literacy is, then, also the education of slaveowners. We can honor oral and musical traditions without denying that literacy is, generally, good. 5/x
CULTURE