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Glen Peters
@Peters_Glen
, 4 tweets, 3 min read Read on Twitter
It is amazing how little the global energy system has progressed in 70 years. This Sankey diagram, from 1952, looks almost identical today (in aggregate terms)!

Efficiency (primary to final energy) was 35% in 1952, today it is about 40%. Today has much more gas than 1952.

1/
It is interesting to see how oil & gas seem to replace coal in the energy system (the growth of coal was much higher until 1910 when oil & gas came along).

You can see how the energy system has grown since 1950...

2/
For the energy needs, here are the statistics for 1952... Human labour is included with draft animals in agriculture!

3/
To keep below 2°C, we probably need to do much better...

References:
*
* Image
* More info folk.uio.no/roberan/t/Earl…

4/
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Glen Peters
@Peters_Glen
1. Global CO₂ emissions from land-use change are stable at ~5GtCO₂/yr (large uncertainty).

How can this be of true if "tree cover has increased by 2.24 million km²" (+7.1% since 1982)?

Because there is forest loss in the tropics but gains elsewhere.

nature.com/articles/s4158…
2. Land-use change is complex, with time & area dynamics:
* Gross deforestation is actually ~10GtCO₂, so huge (& cheap) gains from stopping deforestation.
* Forest sinks also increase (green) because trees are fertilized with fossil CO₂ emissions!

science.sciencemag.org/content/333/60…
3. I reacted to this tweet by @ShellenbergerMD. I sympathize with his points about media exaggeration, but... Tropical deforestation is a huge problem, the gains are not in the tropics & often because of natural regeneration & CO₂ fertilization.
Read 5 tweets
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Glen Peters
@Peters_Glen
Consumption growth (green) has had a much greater impact on the EU carbon footprint than the offshoring of production, with technological improvements reducing emissions (blue).

The focus should be on enacting change, not the global impact of trade!

1/
tandfonline.com/doi/full/10.10…
Trade in both directions (imports and exports) is important for the manufacturing sector. The data does not support claims of wholesale ‘de-industrialisation’ but rather reflects increased trade intensity related to specialization.

2/
Several (but not all) of the major sources of net embodied imports are largely unavoidable consequences of European consumption because the primary production activities (e.g. mining and significant shares of agricultural) could not realistically occur within the EU.

3/
Read 4 tweets
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Glen Peters
@Peters_Glen
1. Remember that #EmissionsGap, where 2°C pathways required 41-47GtCO₂-eq in 2020 & emission policies would lead to an Emissions Gap of 8-13GtCO₂?

Now GHG emissions are ~55GtCO₂ (2019). What happened to the gap from 2012?

unenvironment.org/resources/emis…
2. Current emissions are now "on-track" for 1.5°C & 2°C in 2020 (no gap), but the gap now lies in 2030...

Is 2°C harder? Or have model developments & CO₂ removal made it "easier"?

And how to communicate a lost decade of mitigation?

unenvironment.org/resources/emis…
3. Oliver Geden brought this point up a few years ago: "...it will always be ‘five minutes to midnight’, although global emissions are still not decreasing" @Oliver_Geden

nature.com/articles/s4156…
Read 6 tweets

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Adam Liaw
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N Shekar
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#wa தீபாவளி ஸ்நானத்திற்கு தடை !!

ஹிந்துக்கள் தீபாவளி அன்று குளிக்கக் கூடாது என்று பாப்கான் என்பவர் தொடர்ந்த வழக்கை மிக மிக அவசர வழக்காக இரவோடு இரவாக விடிய விடிய விசாரித்த சுப்ரீம் கோர்ட், அதற்கு தடை விதித்து வரலாற்று சிறப்பு மிக்க தீர்ப்பை வழங்கியது.
இது பற்றி தீர்ப்பில், ஹிந்துக்கள் பண்டிகை என்பதால் தைரியமாக தடை விதிப்பதாகவும், இதன் மூலம் பல லட்சம் லிட்டர் தண்ணீர் சேமிக்கலாம் என்றும் நீதிபதிகள் தெரிவித்துள்ளனர்.
இது பற்றி கருத்து கூறிய பப்பு, கங்கா ஸ்நானம் ஆச்சா என்று கேட்பது மதவாதம் என்றும் தேம்ஸ் ஸ்நானம் ஆச்சா என்றோ நைல் ஸ்நானம் ஆச்சா என்றோ கேட்பது ஸெக்யுலர் என்றும் தெரிவித்தார்.

ஸ்டாலின் இது பற்றி கூறுகையில், தீபாவளி பண்டிகை என்று சொல்லி குளிப்பதை மட்டுமே தங்கள் கட்சி எதிர்ப்பதாகவும்
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@DerorCurrency
Today.. the political influence of Jewish chauvinism & religious fanaticism is much greater than that of antisemitism.

Israel Shahak, 1994
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Israel Shahak
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@kirstygogan
Today much of the world's population lives safer, more comfortable, healthier, longer, more productive lives than ever before. And yet, around half of the global population currently lacks access to enough electricity, and 1.2bn people have no access at all. #IPCC 1/n
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