Literally every country in the world: "How come German motorways have no speed limit? They must have a fetish for it!"

German Transport minister: "Those who want a 130km/h #tempolimit have a fetish for it!" 🤦‍♂️ welt.de/politik/deutsc…
The interview is topped-off with dramatic, populist undertones: "the voters can decide: either freedom of mobility with us, or bans & constraints with the Greens"
...as well as inaccuracies: Scheuer claims that German motorways are "the safest roads in the world" (no less). That's not correct.
Just in Europe, there are 12 countries with a lower fatality rate on motorways, including neighbouring Netherlands, France, Austria and Switzerland. statista.com/chart/25098/fa…

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More from @giulio_mattioli

14 Jul
So apparently this is the UK government strategy for aviation & climate.

Let demand & supply expand & hope for a technological fix a couple of decades from now.

One could write a long thread about it, but really the story really is quite simple here...
What they propose is *literally the status quo*.

*Literally what we've been doing for the last few decades*.

The result? Aviation emissions have sky-rocketed. ⬇️ Image
On the role that technology hopes / myths play in this context see this brilliant paper. It's all there.
Read 4 tweets
13 Jul
#ClimateTwitter we need to talk about percentages and denominators.

Depending on what you divide it by, any measure bringing about carbon emission reductions can be made to look ridiculously small, or huge.

Good to be aware of these things [THREAD]
For illustrative purposes, let's take this measure I've been tweeting about lately: introducing a generalised 130km/h motorway speed limit in Germany (where there isn't any) would cut annual emissions by 1.9MTCO2e.

Is it much? Is it little?
So I get people in my mentions dividing that by the *total amount of global emissions in any sector, in any country*

The precise figures below may or may not be accurate but obviously if you do that, the impact will inevitably look very small
Read 11 tweets
12 Jul
Opponents of #tempolimit in Germany argue that the resulting emission savings (2MTCO2e) are too small to matter.

In fact, they would help deliver *almost half* of the transport emission reductions (-5MTCO2e) promised in the government own emission budget for *this year*
Read 4 tweets
10 Jul
Another day, another instance of gaslighting in the German #Tempolimit debate.

Here is the leader of the pro-business FDP party claiming that motorway speed limits "do not necessarily reduce emissions", because... EVs 🤦‍♂️ zeit.de/2021/28/christ… Image
So let's go through this once again.

1. The German government's *own estimates* find a significant emission reduction from motorway speed limits
...which is why the International Energy Agency recommends the introduction of 100km/h motorway speed limits from now to 2030 - the decade where we expect EVs sales to boom
Read 7 tweets
30 Jun
Likely next German Chancellor Laschet claims that introducing a generalised motorway speed limit (still not a thing in Germany!) would be "symbolic policy" as there is no proof that it would reduce emissions.

This is post-truth politics.
This is from a recent study by the German Environment Agency (UBA) into the environmental impact of a #tempolimit.

It directly contradicts to Laschet's statement.

UBA operates under the jurisdiction of the Federal Ministry of the Environment
umweltbundesamt.de/publikationen/… Image
The estimated CO2 reduction impact of a motorway speed limit is actually comparable to that of a substantial CO2 tax or a ban on domestic flights (see link in the thread)
Read 5 tweets
29 Jun
*** IMPORTANT NEW PAPER KLAXON ***

New paper by @lamb_wf et al. on trends & drivers of climate emissions in various sectors since 1990. Will feed into IPCC Sixth Assessment Report.

I contributed to the section on transport so here's a THREAD
iopscience.iop.org/article/10.108…
@lamb_wf Transport accounts for 14-15% of global GHG emissions according to the latest figures (2018). Most of it from road transport (11% of global emissions). Aviation is 1.6%.
Road transport is both one of the highest emitting subsectors AND one of the subsectors with the most rapid growth since 2010 (+2% per year)
Read 11 tweets

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