exp1orer

10 ms·

31.
by exp1orer 4y ago
Good questions, we spend a lot of time thinking about how to ensure the actual additionality of what we're doing. The most important consideration - we pay per kg, and less than the market rate of new gas. So a technician that was re
32.
by exp1orer 4y ago
Good idea! I looked into this when I first started thinking about the problem. MethaneSAT is launching this year, so I thought maybe we could do the same for refrigerants. Unfortunately I don't think it would work: 1. Methane is 1900 p
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by exp1orer 4y ago
We destroy it in an active cement kiln! The Montreal Protocol has a Technology and Economic Assessment Panel outlining approved destruction options[1] and this is one of their approved technologies. It's great for a few reasons: 1. Alr
34.
by exp1orer 4y ago
Good question! In theory, reclaiming gases that are still unrestricted for production/import is at least as good as destruction from a climate perspective. However, virgin refrigerant is really cheap until import bans take hold -- so t
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by exp1orer 4y ago
Precisely because credits are not really a commodity, so some buyers have preferences about what credits to buy and how much they are willing to pay. There are some subset of buyers and sellers who pretend that all credits are the same, but
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by exp1orer 4y ago
Yeah that's definitely an issue! It's probably a bit less tractable than what we're dealing with because 1. Scrappers likely don't have the skills, equipment or inclination that AC technicians do. 2. Those self-contained
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by exp1orer 4y ago
It varies by country but I'm not aware of any country that has fully phased out HFCs -- the EU I believe is already imposing import quotas but it is still legal to use.
38.
by exp1orer 4y ago
There is a link to the IPCC report a few paragraphs down where you can read about this and other statistics to your heart's content.
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by exp1orer 4y ago
There is definitely a lot of bullshit out there but when companies decide to pay for climate mitigation, even as a marketing ploy, I think that is net good. Many companies are certainly looking to buy the cheapest credits they can find but
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by exp1orer 4y ago
We are 10x cheaper than the high-quality carbon removal that for example Stripe Climate is purchasing. But we are 10x more expensive than the "low quality" credits that I describe in the post. So overall there is a 100x differenti
41.
by exp1orer 4y ago
Well done! I took the 608 Type 1 exam (online open book) but never went beyond that. Venting refrigerant is illegal in most of the world but it's almost impossible to enforce and compliance is typically quite low (good data is, as you
42.
by exp1orer 4y ago
Author here, very excited to share this with HN. Been seeing a lot of engineers thinking about getting into climate so I thought people might find it interesting. Happy to answer any questions!
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No Refrigerant Left Behind(recoolit.com)
406 points by exp1orer 4y ago|314 comments
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by exp1orer 5y ago
This is pretty funny, but in functioning financial markets, it's just as hard to pick losers as winners. The beliefs of professional traders about whether a stock will go up or down is already baked into the price. If you believe a sto
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by exp1orer 5y ago
Several other protonmail accounts have set up auto-forwarding to my protonmail inbox (whether accidentally or maliciously I don't know). PM has a feature that allows me to see who they are, but not remove the forwarding automatically.
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by exp1orer 7y ago
Thanks! For others who tried to google "The Odin Project", the correct link is https://www.the-odin.com/ . It's confusing because that's also the name of a website for learning web development ( https:&
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by exp1orer 7y ago
Guesstimate [1] (cited in this paper in footnote 6 and previously discussed on HN [2]) is a really nice implementation of some of these ideas. Has anyone come across other good implementations? As a side note, I've been doing more prob
48.
by exp1orer 8y ago
This is extremely interesting. This paper does a few different things that are worth separating: 1. Structures knowledge about common statistical tests, the assumptions they need to satisfy, and the kinds of problems for which they are appr
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by exp1orer 8y ago
> it's better to say you don't know than guess wildly. > although I don't have any statistics to back me up, I'd guess that most events happen in clusters More seriously, yes, before you apply this rule you should
50.
by exp1orer 8y ago
Looking at data from the US Census [1], in 2017 the SF-Oakland-Hayward metro area had: * a rental vacancy rate of 4.2% (8th lowest out of the 75 largest metro areas) * a homeowner vacancy rate of 0.7% (11th lowest) The rates were similar fo
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by exp1orer 8y ago
I don't think "higher morals" is a realistic solution within our current market economy - these are multi-billion dollar corporations which operate on a separate set of motivations from any of their employees. I also don&#x27
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by exp1orer 8y ago
That's fair, if a bit strong - this one has more [1]. "Separately, FDA chemist Narong Chamkasem found “over-the-tolerance” levels of glyphosate in corn, detected at 6.5 parts per million, an FDA email states. The legal limit is 5.
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by exp1orer 8y ago
I recently read the great line: "Good ideas do not need lots of lies told about them in order to gain public acceptance." http://blog.danieldavies.com/2004/05/d-squared-digest-one-mi...
54.
by exp1orer 8y ago
So this suggests that the samples submitted to the FDA for testing were not representative of ordinary food. This reminds me of the ongoing Tetra Tech/Hunter's Point scandal [1], where the US Navy paid $300M to a contractor to cle
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Founder's spouse working at a startup?
1 points by exp1orer 9y ago|1 comments
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by exp1orer 9y ago
Based on context (being in a list with Invision) I think they mean the prototyping tool Atomic: https://atomic.io/
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by exp1orer 10y ago
If you read the actual letters, you'll see they ask for "the name, address, length of service, and electronic communications transactional records for all services, as well as all accounts, provided to the individual(s) or identif