Her er Karina’s noter til dagens afsnit:
1) Jordens Magnetfelt
2) Mennesker påvirker Jordens massefordeling og dermed magnetfeltet
3) Plastik
4) Temperaturen for 2025 er kommet ind
5) Astronauts return early (a non story?)
6) JWST black hole ripping through space:
7) Solformørkelse i Spanien
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1:
Magnetisk Nord pol vandrer:
Jordens magnetfelt har en Anomali:
https://www.sciencealert.com/vast-anomaly-in-earths-magnetic-field-keeps-growing-satellites-reveal
Vast Anomaly in Earth's Magnetic Field Keeps Growing, Satellites Reveal : ScienceAlert
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2)
Humanity Has Dammed So Much Water It's Shifted Earth's Magnetic Poles : ScienceAlert
https://www.sciencealert.com/humanity-has-dammed-so-much-water-its-shifted-earths-magnetic-poles
As we trap water behind dams, not only does it remove water from the oceans, thus leading to a global sea level fall, it also distributes mass in a different way around the world.
Extra weight added to a spinning sphere pulls the weighted part towards the equator, shifting the axis around which the sphere spins. So, redistributing Earth's surface weight re-orientates its spin axis, whether that be through damming water, melting glaciers, or groundwater removal.
But it's only Earth's outer crust floating over its gooey inner parts – not the inner goo generating the magnetic field – that shift, leading to a different part of Earth's surface sitting over our planet's inner magnetic north.
So, while north itself hasn't really moved in space, Earth's surface has shifted around, over the top of it. This phenomenon is called true polar wander.
https://www.sciencealert.com/earths-flipping-magnetic-field-heard-as-a-sound-is-an-unnerving-horror
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Plastik
The primary source of plastic is
fossil fuels, specifically crude oil and natural gas. Over 99% of plastic is produced from these non-renewable hydrocarbon sources, which are refined into monomers like ethylene and propylene, and then polymerized into plastic materials
3) Jagten på det nye plastik
https://interestingengineering.com/science/biodegradable-plastic-made-from-bamboo
Plastik fra Avokado sten:
https://worldbiomarketinsights.com/biofase-develops-biopolymers-from-avocado-pits/
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4)
In 2025, the global average surface temperature was approximately 1.44∘C-
1.47∘C
above the pre-industrial (1850–1900) level. It was confirmed as the third-warmest year on record, trailing behind 2024 and 2023 despite the cooling influence of a La Niña pattern.
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5) Astronauts return early
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6) JWST black hole ripping through space:
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7) Solformørkelse i Spanien. Man kan komme på rejse med Michael Linden Vørnle
https://smilrejser.dk/spanien/solformoerkelse-i-spanien-med-astrofysiker-michael-linden-voernle
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