IPCC: By 2050 a Brazil-sized area of new forests and/or crops may be needed to meet 1.5°C climate goal…

No, this is not the new Shell scenario, this is the IPCC SR15 Summary for Policy Makers. These are scenarios with no or limited overshoot...

https://www.ipcc.ch/sr15/ 

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Shell requires some “700m hectares of land would be required over the century, an area approaching that of Brazil”.

[Why Brazil, that is 850Mha, Australia 770Mha?]

This is a similar area to the favoured “Low Energy Demand” (LED) scenario.

https://www.carbonbrief.org/analysis-shell-says-new-brazil-sized-forest-would-be-needed-to-meet-1-5c-climate-goal
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Shell uses 183EJ bioenergy in 2100, about the median of a 1.5°C scenario with no or limited overshoot (LED uses about half that).

Shell therefore will use about 400Mha for bioenergy, & LED uses about half that.

4/
No, low, or high overshoot, whatever you want to call your 1.5°C scenario, they all have huge implications for land.

Shell Sky is by no means an outlier.

Brazil is ~850Mha. The four IPCC illustrative pathways all cross that in 2100, even double it.

https://www.ipcc.ch/sr15/ 
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“when comparing energy-related CO₂ emissions alone, the pathways for the [Shell Sky] 1.5°C & “well-below 2°C” are also similar, reaching net-zero around 2070. The key difference…Sky 1.5 requires major reforestation – some 700m hectares of land ...”

https://www.carbonbrief.org/analysis-shell-says-new-brazil-sized-forest-would-be-needed-to-meet-1-5c-climate-goal

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Sky is high on most fossil fuels in comparison to other 1.5°C scenarios 🤔, but is super high on solar 👏.

Also see my post from 2018 (still holds it seems) https://cicero.oslo.no/no/posts/ciceroblogs/shell-in-a-low-carbon-world
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Shell uses a bucket load of Carbon Capture & Storage (CCS), but a lot less than its IPCC peers...

Why are the fossil energy companies the ones conservative on the deployment of CCS? 🤔

8/
Although Shell calls it a 1.5°C scenario, it actually emits more CO₂ than your average 1.5°C scenario.

It seems they have taken a rather liberal interpretation of the remaining carbon budget uncertainties (~60% higher than expected from SR15 after deducting 3 years)

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