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28 Jan, 5 tweets, 2 min read
A commitment to reach so called 'net zero' by 2050 and protect a mere 30% of land & ocean by 2030 is a commitment to continue emitting vast amounts of greenhouse gases while completing the destruction of ancient rainforests, coral reefs and Arctic sea ice. A commitment to horror.
'The combined prospects of an economic stimulus and infrastructure package—both of which will boost fossil fuel demand—spell a more prosperous 2021 and 2022 for the world’s biggest polluters.' newrepublic.com/article/161048…
Mammals, amphibians, reptiles and birds are also likely to disappear on a catastrophic scale in the Amazon and other naturally rich ecosysterms in Africa, Asia, North America and Australia if temperatures rise by more than 1.5C'
Emergency action required.
web.archive.org/web/2020110104…
'17% (one-in-six) chance that the remaining carbon budget for 1.5C has already been exceeded'

Even with net-zero 2030 we could head well over 1.5C towards the theoretical Hothouse Earth danger zone.

The 1.75C 'budget' may have already been exceeded too.carbonbrief.org/guest-post-ref…
It would take the most extraordinary action/events to avoid 1.6-1.8C in the 2030s, and we could even hit 2C by the early 2030s without emergency action to slash emissions to zero now.

And what about non-climate related habitat & ecosystem destruction?

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Ben See Profile picture
26 Jan
'For many of us, coffee is essential.'
No.
A 'daily luxury'.
Yes.

We don't need coffee, but we do need to transform the global food system away from Big Business Agriculture asap.

One thing not suggested, despite the ecological damage: stop drinking it.theconversation.com/coffee-heres-t…
This is directed to myself as I haven't yet given coffee up, but I've slashed my intake towards zero drastically over the last 6 months. This month I've started cutting my chocolate intake. I mention this just out of interest and to confirm how serious is the ecological crisis.👍
That sounds ridiculous reading it back. Or does it? Imperfect communication on the need for both individual and system change and how they go hand in hand... Hopefully you get the idea.
Read 4 tweets
Ben See Profile picture
25 Jan
What does Professor Betts mean by 'runaway' in this discussion when he says,

"We haven't sort of set off any kind of runaway uncontrollable climate change yet, and in fact we may not do for a long time"?

We *may* not?!

Video (watch from 3mins45):



1/
I have been told by scientists that there is no feedback scenario at 2C which moves us to something much hotter.

See this thread:



2/
However, the Hothouse Earth theory is not dismissed by Betts, but he sees it as speculation:

'even if the self-perpetuating changes do begin within a few decades, the process would take a long time to fully kick in – centuries or millennia.' theconversation.com/hothouse-earth…

3/
Read 4 tweets
Ben See Profile picture
25 Jan
Hi @coxypm

Is it fair to say 2C, likely by between the late 2030s and mid-century, will lead to the release of vast amounts of carbon into the atmosphere from tropical, temperate & Arctic soils, and Earth's oceans & forests, and thus to further warming?

futurism.com/the-byte/soil-…
and will this 'fast-track us toward planetary disaster' as stated in the article?
exeter.ac.uk/news/research/…
Read 4 tweets
Ben See Profile picture
24 Jan
We can expect +2C of global warming just from emissions that have already occurred.

Some of this committed warming will happen within decades, and though much of it will take centuries, without emergency system change now, we face the hell of a rapid shift to +2C by the 2030s.
1.
We can expect +1.5C by 2025-2030.

This could happen even with major climate action.

i) 67% chance (depending on assumptions)
theconversation.com/new-research-s…

ii) 2026-2032 (1800s baseline)
carbonbrief.org/analysis-when-…

iii) 1.5C as early as 2025 (1800s baseline)
nature.com/articles/d4158…
2.
'committed warming has a most-likely value of around 2.5C.. just from emissions that have already occurred

if we continue to emit greenhouse gases at the rate we currently are, we will blow through the 1.5 and 2C limits possibly within a few decades.'
independent.co.uk/environment/gr…
Read 4 tweets
Ben See Profile picture
24 Jan
How do journalists feel about the fact that 99% of their readers and viewers don't realise we can no longer avoid calamitous levels of global warming by 2025 - 2034 which will combine with habitat destruction and pollution to begin to seriously threaten organised human society?
We can expect 1.5°C by around 2025-2030. This is a catastrophe, though climate models indicate truly horrific 2°C by 2034 is a real possibility.

Most of the largest rainforests have now reached tipping points of some kind.

Who will focus on this reality?
1.5C by 2025-2030 is highly likely.

nature.com/articles/d4158…

2C by 2034-2043 is increasingly likely, not least because emissions may well be set for a #COVID19 rebound in 2021/22.

At 2C there will be climate chaos impacts we just cannot cope with.

carbonbrief.org/analysis-when-…
Read 6 tweets
Ben See Profile picture
22 Jan
I'm more than happy to answer when someone asks how I cope with the grim information on here because of course it needs to be talked about, and lots of people struggle with the feelings that inevitably arise from confronting what is happening. The fact is
whatever I feel (and I'm only talking about my feelings here) is nothing compared to people who are really suffering - those billions dealing with the famine, hunger, poverty and/or war which are overlapping with ecological and climate breakdown. It's much easier to 'cope'
when you're privileged (see my photo, job, location. For years reminding myself of my privilege when I was low made me feel worse, but that's in the past). I've talked through feeling low a good deal over the decades, so now I'm well set up to handle the grim science.
Read 7 tweets

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