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AukeHoekstra Profile picture
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7 Jan, 5 tweets, 2 min read
Time for some Law and Order? Image
Can people inside the US explain to me why people like this are not arrested?
And is it me or does police seem to be awfully sympathetic?

If I where American I would want to know who in the police aided and abetted these idiots.
Just a reminder: this is what it looked like at a BLM demonstration in DC last year. Of course that is not just due to the police: this is the national guard, presumably with encouragement by Trump. But it indicates law enforcement is not as impartial as should be. Image
And this is how protestors when Trump came into office where treated.

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More from @AukeHoekstra

AukeHoekstra Profile picture
9 Jan
America was very lucky that its generals take the constitution more seriously than its president, one of its political parties and most of the voters.

But a democracy that needs to be protected from its elected officials by generals is a dead man walking.
I studied political science and it seems to me US democracy has become a reality soap with imagined grievances and tribalism more important for most people than democratic norms. And utterly irresponsible politicians will be able to run again with not even a slap on the wrist.
For me the root cause is irresponsible voters who think they can behave like hooligans at a football game. Who think politics is entertainment and they can just vote with their gut. Who are so insecure, coddled and entitled that they think they can choose their own facts.
Read 5 tweets
AukeHoekstra Profile picture
3 Jan
The @guardian has a new piece on the well known problems related to electric vehicles, solar and wind.

I think the focus on resource use and responsible mining is great. As long as we also remind ourselves that fossil fuels are worse.
theguardian.com/environment/20…
Remember that a car burns ~ 25 000 liters of fossil fuel over its lifetime. Do you really think that's better than 200 kg battery materials that's recyclable? And cobalt is also used for cleaning fossil fuel.
Apart from climate change the amount of ecosystem degradation, direct human suffering, conflict and corruption due to oil is much larger but that apparently generates less clicks.
doi.org/10.1111/rode.1…
Read 5 tweets
AukeHoekstra Profile picture
3 Jan
New open access publication in Nature concludes: meat should be more than twice as expensive if we take climate damage into account.

short thread
nature.com/articles/s4146…
ht @JMoVS
First I should be more precise:
- This is for the German situation.
- It looks at the price for farmers.
- There are large differences between types of meat and whether they are produced conventionally or organically.
This table shows the emissions per foodstuff in kg CO2eq per kg of foodstuff:
Beef 37 kg
Poultry 16-20 kg
Pork 6-10 kg
Eggs 1-2 kg
Milk 1 kg
Cereal 0.2-0.4 kg
Fruit 0.2-0.3 kg
Root crops 0.1 kg
Vegetables 0.0 kg
Read 8 tweets
AukeHoekstra Profile picture
27 Dec 20
Der @BILD (large German magazin) claims that electric vehicles emit MORE particulate emission according to a new @OECD report.

This is a lie, plain and simple, if you actually read the report. Which I did because I research this at the @TUeindhoven.

I made a graph to show it.
This thread that I made a while ago contains all the details.
The report is very friendly about gasoline and diesel bc it conforms to official tests that we know are too optimistic about exhaust (e.g. from #dieselgate) but even then it just claims the problem won't go away when using EVs although there's a small but significant improvement.
Read 4 tweets
AukeHoekstra Profile picture
23 Dec 20
Some people want us to believe there's not enough solar energy available to cover our worldwide energy needs

They often use EROI (Energy Return On Investment) as their metric

This is a rant against these EROI people misinforming the debate, based on a rebuttal of a 2020 paper
In essence the approach of the paper is straightforward:

1) Discard water and 96% of land because it's supposedly unavailable

2) Assume solar cells on just 1/5th of the remaining 4%

3) Complain that production of solar panels takes a lot of energy
sciencedirect.com/science/articl…
About 1) (available land)

Discarding 96% of land seems pretty extreme:
30% of the world's land is barren
40% of the world's land is used for meat

I think we could find more than 4% if we tried
(but we don't have to: we need less than 1%)
ourworldindata.org/land-use
Read 11 tweets
AukeHoekstra Profile picture
22 Dec 20
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: oecd-ilibrary.org/environment/no…
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.
Read 15 tweets

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