Science – Page 3 – a sibilant intake of breath

Canada’s 2023 fires

Oliver Milman writes in The Guardian:

The impact upon the world’s climate will be even more significant than this. According to data from the European Union’s satellite monitoring service, more than 1.7bn tons of planet-heating gases have been released this year by the enormous fires – about three times the total emissions that Canada, a major fossil fuel-producing nation, itself produces each year.

Such huge emissions, eclipsing in a single year any measure, however ambitious, to cut pollution from cars or factories by a country like Canada, are a major drag upon efforts to stem the climate crisis. The majestic boreal forests, much like the Amazon rainforest that now emits as much carbon as it sucks up and is tipping towards becoming a savannah, suddenly appear to be a danger to the world’s climate rather than a key safeguard.

The world has ignored the imperative to stop worsening climate change through fossil fuel use for at least three decades now. The planet is starting to gravely reflect that mistreatment, and doing so in ways that worsen future disruption.

A broad-ranging talk with James Burke

As part of promoting a new Connections series on Curiosity Stream launching on Nov. 9, I got the chance to interview historian of science and technology, science communicator, and series host James Burke:

The more interview-intensive part begins at 3:10.

Reviewing an unreleased book and TV show

While it won’t help with my rent, I nonetheless have some very interesting work for the next few days.

I am doing a close read twice of Professor Peter Russell’s forthcoming memoirs, which has been a privelege because of the respect I have for him as a thinker and a person, and a joy because of their colour, humour, and personality.

I am also previewing a new series of James Burke’s TV show Connections, which previously ran in 1978, 1994, and 1997. I have seen those old shows many times, and I thought a lot about his book The Axemaker’s Gift back in high school. I have the chance to interview him from Monaco on Wednesday, so I am giving the new material a careful viewing and thinking through how to make the best use of the conversation. There is scarcely a person I can think of who has a more educated and wide-ranging understanding of the relationships between science, technology, and human society. Since human civilization is presently hurtling toward a brick wall which threatens to rather flatten us all, it may be invaluable to get Burke’s views on how a defensive strategy from here can be undertaken.

Our ill feeling toward high-status players has been captured in the lab. When neuroscientists had participants read about someone popular, rich and smart, they saw brain regions involved in the perception of pain become activated. When they read of this invented person suffering a demotion, their pleasure systems flared up. Psychologists see this effect cross-culturally, with one study in Japan and Australia finding participants took pleasure in the felling of a ‘tall poppy’: the higher their status, the greater the enjoyment of their de-grading. The most venomous levels of envy were reported when the poppy’s success was ‘in a domain that was important to the participant, such as academic achievement among students’ – when they were rivals in their games.

An yet, as we’ve learned, we’re also drawn to high-status people: we crave contact with the famous, the successful and the brilliant. So our relationship with elite players is thunderously ambivalent. On one hand, we gather close to them, offering them status in order to learn from them and, in the process, become statusful ourselves. On the other, we experience grinding resentments towards them. This, perhaps, is the result of the mismatch between our neural game-playing equipment and the massively outsized structure of modern games. Our brains may be specialized for small tribal groups but today – especially at work and online – we play colossal games in which poppies loom over us like redwoods. Status is relative: the higher others rise, the lower we sit in comparison. It’s a resource and their highly visible thriving steals it from us. The exceptions we make tend to be for ambassadors from our own groups: artists, thinkers, athletes and leaders with whom we strongly identify. They seem to symbolize us, somehow. They carry with them a piece of our own identity, a pound of our flesh – so their success becomes our success and we cheer it wildly. To our subconscious these idols are fantastically accomplished versions of us: our copy, flatter, conform cognition overrides our resentment.

Storr, Will. The Status Game. William Collins Books; London; 2021. p. 97-8

Another example of Canada’s dishonest climate policy

These linguistic evasions demonstrate both our continuing lack of seriousness about climate change and how the public policy agenda remains captured by the fossil fuel industry protecting its narrow interests:

Western premiers push back as Guilbeault calls for ‘phase-out of unabated fossil fuels’

We know that greenhouse gases are the cause and there is no solution to climate change without fossil fuel abolition, but we are stuck talking about a “phase down” instead of elimination, and using the magical idea of “abated” fossil fuels to use a technology that does not exist at scale (carbon capture and storage) to justify continued fossil fuel development.

We are sliding toward geoengineering

Geoengineering is a very dangerous and ethically questionable response to climate change, but it feels increasingly inevitable.

Governments are simply not willing to do what is necessary to avoid catastrophic climate change, which is unsurprising because voters refuse to elect anyone who even gestures at the scale of change required.

Furthermore, there is no evidence that worsening climatic conditions make people more willing to support fossil fuel abolition. Instead, it seems to drive people toward false solutions or just inchoate anger. Even the ‘serious’ governments are still using taxpayer money to subsidize brand-new fossil fuel production. Everyone has a story about why their industry is the one that doesn’t need to shut down.

It is hard to believe that when climate disruption continues to get worse every year (with El Nino, people are predicting next year will be the hottest in history) the worst-hit places won’t start modifying the atmosphere to try to cancel it out — side-effects, impacts on others, and long-term risks be damned. We are a species that has always preferred monthly life-long $1500 injections with a mystery drug to be thinner, rather than changing our diets.

Wildfires are doubling Canadian CO₂ pollution this year

A popular argument among those who want Canada to ignore climate change and keep exploiting fossil fuels is: “But we have so many trees that our emissions must hardly matter! Maybe the world should pay us!”

The argument is deficient on several levels, not least because a tonne of carbon in a tree doesn’t negate a tonne of emissions from fossil fuel burning. The tree only holds the carbon while it is alive, whereas CO₂ in the atmosphere will partly remain in the atmosphere for hundreds of thousands of years.

The argument also fails when our forests themselves become a cause of worsening climate change:

Hundreds of forest fires since early May have generated nearly 600m tonnes of CO2, equivalent to 88% of the country’s total greenhouse gas emissions from all sources in 2021, the Copernicus Atmosphere Monitoring Service (CAMS) reported.

More than half of that carbon pollution went up in smoke in June alone.

If you think Canada should get extra permission to pollute because of our forests (questionable) then we also need to be responsible when those forests become net carbon sources.

Alberta’s 2023 election

Al Jazeera reports:

Canada climate battle looms as Alberta takes aim at PM Trudeau

…

In her victory speech in front of cheering supporters in Canada’s oil capital Calgary, Smith called on Albertans to stand up against policies including the federal government’s proposed oil and gas emissions cap and clean electricity regulations, expected to be unveiled within weeks.

“We need to come together no matter how we have voted to stand shoulder to shoulder against soon to be announced Ottawa policies that would significantly harm our provincial economy,” said Smith.

“Hopefully the prime minister and his caucus are watching tonight. As premier I cannot under any circumstances allow these contemplated federal policies to be inflicted upon Albertans.”

How do we fight for a future without fossil fuel arson when our fellow citizens are keen to sustain and enlarge the fires, even when the secondary effects bring hell-like conditions home?

Update on emissions trends and climate sensitivity

Zeke Hausfather has a useful update on how real-world GHG emissions compare with estimates in IPCC models, and the implications for future warming:

So what should our takeaway from all of this be? First, there is some good news here. The world is no longer heading toward the worst-case outcome of 4C to 6C warming by 2100. Current policies put us on a best-estimate of around 2.6C warming.

At the same time, a world of 2.6C by 2100 is still a giant mess to leave to the future, including today’s young people, who will live through that, and warming continues after 2100 in these current policy scenarios. Climate system uncertainties mean that we could still end up with close to 4C warming if we get unlucky with climate sensitivity and carbon cycle feedbacks.

A lot of this optimism depends on governments keeping their promises when all the costs come due. We are all still fighting to keep a world stable enough to sustain something like our current global civilization.

Can a machine with no understanding be right, even when it happens to be correct?

We are using a lot of problematic and imprecise language where it comes to AI that writes, which is worsening our deep psychological tendency to assume that anything that shows glimmers of human-like traits ought to be imagined with a complex internal life and human-like thoughts, intentions, and behaviours.

We talk about ChatGPT and other large language models (LLMs) “being right” and “making mistakes” and “hallucinating things”.

The point I would raise is — if you have a system that sometimes gives correct answers, is it ever actually correct? Or does it just happen to give correct information in some cases, even though it has no ability to tell truth from falsehood, and even though it will just be random where it happens to be correct?

If you use a random number generator to pick a number from 1–10, and then ask that program over and over “What is 2+2?” you will eventually get a “4”. Is the 4 correct?

What is you have a program that always outputs “4” no matter what you ask it. Is it “correct” when you ask “What is 2+2?” and incorrect when you ask “What is 1+2?”?

Perhaps one way to lessen our collective confusion is to stick to AI-specific language. AI doesn’t write, get things correct, or make mistakes. It is a stochastic parrot with a huge reservoir of mostly garbage information from the internet, and it mindlessly uses known statistical associations between different language fragments to predict what ought to come next when parroting out some new text at random.

If you don’t like the idea that what you get from LLMs will be a mishmash of the internet’s collective wisdom and delusion, presided over by an utterly unintelligent word statistic expert, then you ought to be cautious about letting LLMs do your thinking for you, either as a writer or a reader.

Category: Science