Nejvyssi drevena stavba na svete...

27 March 2019
Opened on 15 March, the Mjøstårnet, or the Mjøsa Tower in Brumunddal near Oslo, Norway, is with 85.4 metres currently the world’s tallest wooden building.

While wood was one of the first building materials used by men, its use fell out of favour because of it being known as a fire hazard. However, with the downsides of building materials like bricks, concrete and metal becoming more evident, more and more people are turning back to wood. Not the type of wood that grows on trees, though, but engineered wood that is stronger and less flammable.

Designed by Voll Arkitekter, the 18-storey tower is made from lightweight, prefabricated materials, mainly glulam (glued laminated timber), CLT (cross-laminated timber) and MetsäWood’s Kerto LVL (laminated veneer timber), produced in Finland. Kerto LVL is lightweight, strong, and uniform and has an “outstanding strength-to-weight” ratio.

Both the structure and the façade of the Mjøsa Tower are made of wood. The first ten floors, with offices and hotel facilities, are made of prefabricated wooden elements. The decks on the upper floors, however, where apartments are made of concrete. This is because the amount of swaying increases the higher you get in a building built of wood or concrete. The weight of the concrete makes the swaying slower and not as noticeable. The shafts for the elevators and staircases are made of CLT.

The tower, located next to the eponymous largest lake of Norway, was built according to strict fire safety regulations. Untreated solid wood creates its own fire-resistant surface because the outermost layer chars when exposed to fire, protecting against further fire damage. Massive wooden structures manufactured in large maintain therefore their load-bearing capacity in case of fire.

The world’s tallest wooden tower - MaterialDistrict
https://materialdistrict.com/article/worlds-tallest-wooden-tower/

DZODZO: ok, tak to sem si spatne vylozil. o to hur, ze s celym tim lockdownem, zavrenejma fabrikama, nelitanim, odstavenejma uhlenejma elektrarnama, rekordni produkci energie ze solaru atd. mame jen 11% snizenou produkci co2 :)

SHEFIK: zachrani nas odchod od uhlia a ropy e.g. surovin, ktore po miliony rokov ticho cusali v zemi, tak ako to tam ostatne pisu:

(2) the additional input of CO2 to the atmosphere (and hence to the system as a whole) by burning fossil fuels which have laid buried deep beneath the ground or ocean floor for millions of years

SHEFIK: vice mene se nepletu, z clanku:

In other words, without the lockdown, the total amount of CO2 in the atmosphere would have increased by 0.68% in 2020, compared to the 2019 global average. But with the lockdown, we project the increase to be 0.60%.

If global emissions reduce by 8% over the year, with the largest reduction in April, the annual minimum monthly CO2 by September will be 410.6ppm (±0.6), compared to 411.1ppm (±0.6) expected without the Covid-19 impact.

jinymi slovy, dopad covidu je minimalni (max 8% novyho prirustku) a uskromnit se nam v budoucnu vubec nepomuze, muzeme zacit klidne zas vesele litat. zachrani nas jen CCS nebo natural sinks, temata, o kterych mluvi TADEAS apod.

dekuju za prostor k monologu .)

Američané mnohem méně jezdí auty a utlumení průmyslu i těžby způsobilo mnohem menší emise skleníkových plynů. Od doby, kdy v březnu začala platit opatření proti nemoci covid-19, se USA podle nové zprávy Road Ecology Center Kalifornské univerzity v Davisu začaly blížit splnění klimatických cílů pařížské dohody.

Kvůli koronaviru v USA prudce klesají emise, země možná splní i pařížskou dohodu — ČT24 — Česká televize
https://ct24.ceskatelevize.cz/...viru-v-usa-prudce-klesaji-emise-zeme-mozna-splni-i-parizskou-dohodu

But a key question for climate change is what impact this has had on the overall amount of CO2 in the atmosphere – the principal driver of global temperature rise. In our analysis for Carbon Brief, we assess whether the global drop in emissions will have a noticeable impact on atmospheric CO2 concentrations this year.

Analysis: What impact will the coronavirus pandemic have on atmospheric CO2? | Carbon Brief
https://www.carbonbrief.org/...sis-what-impact-will-the-coronavirus-pandemic-have-on-atmospheric-co2

jeste neco k reuse jadernyho odpadu. uz je nekolik reseni, tim se efektivita celyho procesu ziskavani energie z jadra vyrazne zvysuje a minimalizuje dopad na zivotni prostredi

Team develops new way to recycle nuclear waste - Futurity
https://www.futurity.org/...source=rss&utm_medium=rss&utm_campaign=nuclear-waste-recycling-2355402-2

Recent climate models may overestimate future warming - Futurity
https://www.futurity.org/...ce=rss&utm_medium=rss&utm_campaign=climate-models-future-warming-2355302

The researchers say that projections from one of the leading models, known as CESM2 (Community Earth System Model, version 2), are not supported by geological evidence from a previous warming period roughly 50 million years ago.

The researchers used the CESM2 model to simulate temperatures during the Early Eocene, a time when rainforests thrived in the tropics of the New World, according to fossil evidence.

But the CESM2 model projected Early Eocene land temperatures exceeding 55 degrees Celsius (131 degrees F) in the tropics, which is much higher than the temperature tolerance of plant photosynthesis—conflicting with the fossil evidence. On average across the globe, the model projected surface temperatures at least 6 degrees C (11 degrees F) warmer than estimates based on geological evidence.

DZODZO: Jj, rejected energy jsou ztraty

TUHO: rejected energy sa tu mysli odpadne teplo? iba tak hadam vzhladom na to aka cast pochadza z transportation

TADEAS: předpokládám, že ten Tadeáš zmíněný v textu je tvoje maličkost, že jo? :-)

František Marčík: Klimatické odpustky aneb Jak spolehlivě smazat vlastní uhlíkovou stopu? - Ekolist.cz
https://ekolist.cz/...-marcik-klimaticke-odpustky-aneb-jak-spolehlive-smazat-vlastni-uhlikovou-stopu

vc biouhlu .)