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Joined 2 years ago
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Cake day: June 18th, 2023

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  • Plants, depending on the year, are really hard to identify even with a trained eye. If an AI algorithm is training on, say, only the blooming season versions of a plant, then it will do a poor job of identifying the plant in the Fall. Same for human submissions, usually they are photographed when they are in bloom.

    I teach an environmental science course and we have a lab where I have students use iNaturalist for plant identification but the Fall semester students are always at a disadvantage, we have to crack open the dying plants for identification.
















  • What an exciting study. The TL;DR:

    GEOlogy is the study of the earth and how it changes over time. At a high level the Earth is sustained by the geodynamo - electromagnetic fluid movement in the core and mantle that sustains mantle convection and plate tectonics. The Moon doesn’t have any of that, so geological processes on the Moon is of intense study. In this paper they found pretty good evidence of contractional tectonics - the surface wrinkling from the Moon shrinking and changes in orbit - effecting all sides of the Moon in the form of scarps which induce moonquakes. This has implications for mapping the surface for future exploratory missions and long-term habitation (don’t want to have a colony in a seismically unstable place).







  • I completely understand. On a personal level I worked for years on lobbying to get a carbon fee and dividend system passed at state and federal levels because I felt that taxing companies for their carbon emissions was a smart and tangible way of dealing with the problem. As I’ve grown cynical with CF&D never catching on politically, I sniffed out different technocratic solutions. I agree the companies researching and implementing CCS are the same oil companies that got us into this mess so how much can we take from their advocacy with CCS as being a good thing? As a professional geologist I have a love-hate relationship with O&G industry but they are so powerful I don’t know how to work against them but instead with them (I don’t work for an oil company, I work in publicly funded CCS research)


  • Not exactly dry ice, it is supercritically pressured carbon dioxide so it has the density of a liquid but defuses like a gas. CO2 plumes are stable at depths where injection occurs because they are maintained in a pressure and temperature environment where the CO2 stays in a liquid stage, so it will never rise to the surface like a conventional lighter-than-air gas. In-situ mineral carbonation can also occur where the CO2 is injected into silicate rock formations to promote carbonate mineral formation, locking the CO2 for thousands (millions maybe) years.