@peterdutoit@mastodon.green
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peterdutoit

@peterdutoit@mastodon.green

𝗙𝗼𝘂𝗻𝗱𝗲𝗿: FutureWork IQ | I speak about mitigation and adaptation in the face of the climate crisis | b. 316 ppm | 🇿🇦

𝗠𝘆 𝗠𝗮𝘀𝘁𝗼𝗱𝗼𝗻 𝗣𝗼𝗹𝗶𝗰𝘆: Posts are set to auto delete after 30 days in an endeavour to assist with keeping server storage at a minimum. Important archives on listed blogs!

This profile is from a federated server and may be incomplete. Browse more on the original instance.

peterdutoit, to random
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Early Warnings

There has been a dramatic shift in the earths water system!

  • Reference glaciers (for which we have long-term observations) experienced an average thickness change of −1.3 metres between October 2021 and October 2022. This loss is much larger than the average of the last decade. The cumulative thickness loss since 1970 amounts to almost 30m

#ClimateCrisis #Water

1/

peterdutoit,
@peterdutoit@mastodon.green avatar

  • The European Alps smashed records for glacier melt due to a combination of little winter snow. In Switzerland, 6% of the glacier ice volume was lost between 2021 and 2022 – and one third between 2001 and 2022.

  • The Greenland Ice Sheet ended with a negative total mass balance for the 26th year in a row.

2/

peterdutoit,
@peterdutoit@mastodon.green avatar

  • Sea ice in Antarctica dropped to 1.92 million km2 on February 25, 2022, the lowest level on record and almost 1 million km2 below the long-term (1991-2020) mean.

  • Arctic sea ice in September at the end of the summer melt tied for the 11th lowest monthly minimum ice extent in the satellite record.

3/

peterdutoit,
@peterdutoit@mastodon.green avatar
  • Global mean sea level reaching a new record high for the satellite altimeter record (1993-2022). The rate of global mean sea level rise has doubled between the first decade of the satellite record.

Source: https://public.wmo.int/en/media/press-release/rapid-changes-cryosphere-demand-urgent-coordinated-action

jeff, to bluesky
@jeff@honeytree.social avatar

I am doing some exploration on

Give me a follow there please if you have an account

@honeytree.bsky.social

Thanks to @peterdutoit for the token!

peterdutoit,
@peterdutoit@mastodon.green avatar

@jeff @mike they are very close to enabling what this was all about initially which is to create a Protocol which allows anyone to run an "instance" essentially making it similar to the ActivityPub fediverse.

Here is the comment about that.

The next step with the algorithmic feed is to allow an individual to create their own via the app.

Some 3rd party apps are showing up. Eg https://skyfeed.app/ - what's great about this app is the ability to see the firehose which is fascinating.

peterdutoit,
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@mike @jeff if you haven’t looked at this yet you should - basically outlines how federation will work

https://atproto.com/docs

peterdutoit, to random
@peterdutoit@mastodon.green avatar

Early Warnings

In this peer-reviewed paper scientists looked at 12 locations around the Mediterranean and Middle East to determine when these locations would cross the regular occurrences of 45° and then 50°C days given our current trajectory. They look at the situation at present, mid century (27 years away) and late century (77 years away)

Source: https://www.nature.com/articles/s41612-023-00377-4

They observe:

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peterdutoit,
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“As the hottest European temperatures already verge on 50 °C, the question arises whether extreme climatic conditions similar to neighbouring regions like Northern Africa are migrating into Europe. Our work provides some evidence that this may indeed be the case, at least in areas with the largest warming trends like Southern Spain. … its associated unprecedented impacts are of great importance to affected European countries.”

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peterdutoit,
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Some of these places will become uninhabitable as a result of the life-threatening heat.

Most of this is unavoidable given the amount of CO2 ALREADY in the atmosphere (423 ppm as of April 2023 and rising) The speed at which this arrives can of course change and is absolutely determined by our choices TODAY.

What will the impacts be in the place you live? Do you know?

End/

peterdutoit,
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@JungleGeorge the interesting thing about all this is that our future is coming into sharper focus and best we start thinking about how to adapt to that future.

One major challenge is how to cope with mass migration out places made uninhabitable by the progression of the climate crisis.

Here we are discussing heat, but there is also baked in sea level rise another major looming challenge.

peterdutoit,
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@zleap have just updated with link

davew, to random
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Twitter was not great but at least there was one place, a place of record. Now there are at least 3 and posting to all feels like pissing in the wind. Where do we go from here.

peterdutoit,
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@davew of these what does your gut say will become the centre of gravity again? Or are those days of having “one place” gone for good?

peterdutoit,
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@davew I guess the attempts to build bridges across all these is to be admired.

peterdutoit, to internet
@peterdutoit@mastodon.green avatar

Yeah so the data is in — Twitter has become a climate denial hotbed.

So glad to not be giving that place anymore energy.

(Screen grab source: https://hal.science/hal-04103183v2/document

peterdutoit, to random
@peterdutoit@mastodon.green avatar

These 291 weather stations have been collecting a wide range of weather data, including temperature, precipitation, humidity, wind speed and direction, and solar radiation for at least 100 years.

The commitment to keep these running form the backbone of our monitoring climate change.

Source: https://public.wmo.int/en/media/news/centennial-weather-stations-are-vital-climate-monitoring

peterdutoit,
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This data was meticulously recorded by hand. For example there were 65,000 sheets of paper containing hand-written measurements of rainfall taken all across the UK & Ireland before 1960.

These have now been digitised!

See this incredible story as told by @ed_hawkins involved in this process in the UK.

https://fediscience.org/@ed_hawkins/109879659504337590

peterdutoit, to random
@peterdutoit@mastodon.green avatar

Latest risk assessment for a rapidly heating world:

At 3.6 - 4.4°C - 4.5 billion people will be “outside of historical climate niche posing an existential risk” to them

At 2.7°C - 3 billion people

“It exposes almost the entire area of some countries (eg, Burkina Faso, Mali) to unprecedented heat, including some Small Island Developing States (eg. Aruba, Netherlands Antilles)—a group with members already facing an existential risk from sea-level rise.”

https://www.nature.com/articles/s41893-023-01132-6#Fig5

peterdutoit, to random
@peterdutoit@mastodon.green avatar

Basically this is our problem and best we figure out how to solve this as in immediately.

Emissions (2022): 36.6 billion tons CO2
Net Removals (2022): 2 billion tons CO2
CO2 Concentrations (Apr 2023): 424 ppm

(Image source https://img.climateinteractive.org/2014/03/bathtub_CO2-1024x728.jpg)

peterdutoit, to random
@peterdutoit@mastodon.green avatar

What have we done.

“Every year about 134 million atomic bombs of heat is being trapped by the ocean. It has kept global temperatures down and kept the land livable but we have to realise that energy hasn’t gone.”

The ocean time bomb fuse has been lit.

https://www.theguardian.com/environment/2023/may/15/oceans-have-been-absorbing-the-worlds-extra-heat-but-theres-a-huge-payback

peterdutoit, to random
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"2023 is off to an alarming start, even before El Niño conditions fully develop later this year. Even a moderate El Niño is likely to lead to a new global temperature record.
“Given the current pace of warming, however, even a new record will likely be surpassed in a matter of years. The planet is warming so fast now, even a natural cycle as strong as the El Niño-Southern Oscillation is beginning to be lost in the noise.” — Kim Cobb, Climate Scientist, Brown University

phillipdewet, to random

The US just directly accused of arming , basically setting fire to the news cycle.

https://www.news24.com/news24/politics/government/breaking-us-ambassador-says-south-africa-gave-weapons-to-russia-for-ukraine-war-20230511

peterdutoit,
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@phillipdewet WTF

peterdutoit,
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@phillipdewet ANC’s love affair with Russia in action.

Talk about being on the wrong side of history.

Teri_Kanefield, to random

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    peterdutoit,
    @peterdutoit@mastodon.green avatar

    @Teri_Kanefield they give more details on the federated structure here https://blueskyweb.xyz/blog/5-5-2023-federation-architecture

    gruber, to random
    @gruber@mastodon.social avatar

    Bluesky is going to skyrocket to mainstream popularity and actually replace Twitter, and Mastodon cannot, because Bluesky is being designed to be simple, fun, and — most importantly — easy to understand.

    peterdutoit,
    @peterdutoit@mastodon.green avatar

    @thoralf @gruber what do you mean by “is commercial” ?

    atomicpoet, to random
    @atomicpoet@mastodon.social avatar

    Jack Dorsey explaining exactly why no single company should own a social media platform.

    peterdutoit,
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    @noondlyt @atomicpoet I guess that could lots of reasons one being a way to pay for costs associated with running an instance?

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