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17 Mar, 4 tweets, 2 min read
We're heading for 427 ppm by 2025.

Research shows warming soils and plants may well contribute as much as 66 ppm within decades.

What is the worst case scenario for humanity if we do hit +550 ppm by the 2070s?
It is thought that 100s of billions of tonnes of CO2 from soils and plants will be released at 2C.
⬇️
independent.co.uk/climate-change…

I tried to find out more about the 66 ppm figure from this 2015 research last year:
⬇️
'Last time CO2 was at similar level temperatures were 3C to 4C hotter'.

dumptheguardian.com/environment/20…
if CO₂ levels double and stay there (or if the total effect of all human impact on greenhouse gases & other climate drivers reaches an equivalent level) then there is up to an 18% chance of 4.5°C of global warming and up to a 5% chance of exceeding 5.7°C. theconversation.com/just-how-sensi…

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Ben See Profile picture
16 Mar
Remember:

1. Carbon dioxide was below 400 parts per million for the last 15 million years

2. CO2 levels are now 418 ppm and rising fast

3. Some scientists say we’ll probably hit +550 ppm which may well mean unsurvivable levels of warming

4. We can still take emergency action
We need to move away from today's economic growth paradigm according to the IPBES. This is an ecological crisis due to capitalism, which is tied to ongoing imperialism and colonialism. Immediate emergency political-and-economic-system-change action needed.
mashable.com/article/climat…
'If the build-up of CO₂ continues at current rates, by 2080 it will have passed 560 ppm – more than double the level of pre-industrial times.'

if CO₂ reaches and stays at that level there is 'up to an 18% chance that temperatures will rise to 4.5°C'.
theconversation.com/just-how-sensi…
Read 5 tweets
Ben See Profile picture
11 Mar
Before I delete this, please note:

1. I'm deleting because I want to, it's my shitty, flawed, eye-catching tweet, and nobody influenced me on this

2. 'BREAKING' is an ironic comment on media silence - the interesting/explosive NASA blog with @ClimateOfGavin is 6 months old!
3. 'Joe Biden's new NASA chief climate change adviser' is a dig at journalist-speak - 'chief'? hackneyed rubbish!

4. Surely we *should* now be prepared (materially, psychologically) for the possibility/likelihood of approaching or just over 3C? my mistake?!
5. There is every reason to think 2.3C will not protect biodiversity meaning billions will be at risk - if @ClimateOfGavin really isn't clearly prompting people to think that, it may mean they've not been informed about the ecological crisis by media, schools, governments, etc
Read 6 tweets
Ben See Profile picture
5 Mar
Remember:

1) Earth's climate is set to suddenly revert back to that of 3 million years ago by the 2030s

2) 18 of the 37 highly dangerous climate change tipping points in IPCC models will then be triggered

3) humans have never experienced anything like this

4) we can still act
Climates like those of the Pliocene as soon as 2030, likely by 2040 (Mid-Pliocene: 1.8°C-3.6°C).

'Both the emergence of geologically novel climates and the rapid reversion to Eocene-like climates may be outside the range of evolutionary adaptive capacity'!pnas.org/content/115/52…
We're heading for 1.8-1.9C, using a 1750 baseline, by the 2030s (or even using a 1850 baseline.. 2C by 2034 is shown as possible by climate models).

Read 6 tweets
Ben See Profile picture
2 Mar
Scientists surprised by the news that we're not at 1.1°C of warming but nearer 1.5°C may wish to reflect on some of their assumptions!? 😬

Will corporate journalists now stop repeatedly misinforming us with statements saying we're 'about 1C higher' than pre-industrial levels? Image
'land areas have warmed a much larger amount – by 1.9C on average' 😱

carbonbrief.org/state-of-the-c… Image
Example from just 10 months ago

'With global temperatures already about 1C higher than pre-industrial levels, Queensland’s Great Barrier Reef has been through three mass bleaching events in only five years'

It was clear last April we were around 1.2-1.4C.dumptheguardian.com/environment/20…
Read 4 tweets
Ben See Profile picture
28 Feb
scientists: primates are being driven to extinction by market demands leading to massive habitat loss through expanding industrial agriculture, large-scale cattle ranching, logging, drilling, mining, dam building, & road construction

media: let's keep this fine economic system
'Globally, agriculture is the principal threat, but secondary threats vary by region.'

🔺This isn't a 'climate' emergency, it's an economic growth emergency, a capitalism catastrophe ('there are also emerging threats, such as pollution and climate change')advances.sciencemag.org/content/3/1/e1…
Is food production primarily about feeding people (4.2 billion people undernourished, 20 - 45% of food produced is lost/wasted), or making vast amounts of money for a small group of ultra-wealthy people (there are 2,000 - 3,000 billionaires and 5 - 6 billion live in poverty)? Image
Read 6 tweets
Ben See Profile picture
27 Feb
Remember:

1. Trees face extinction.
2. Ecosystems are unstable.
3. Crops are vulnerable.
4. Pollinators risk extermination.
5. Water supplies are shrinking.
6. Soils are dying.
7. Primates may not survive.
8. Forever Chemicals are in our blood.

None of this is front page news.
Another thread on tree extinctions here:

Read 10 tweets

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