>>42442021
good point, warmth shouldnt be an issue
the main issue theyd face is getting enough light for plant growth in the yakutian spring and autumn. The sun is very low in the sky, so both south wall and roof of the greenhouse would need to be made of double mica. Mica isn't perfectly clear so doubling it makes light problem worse. So they need a very skilled mica maker, as well as decent muscovite,of which there is some amount in yakutia. they could make like 0.1mm mica panes and add desicants to prevent fogging and get as much light as possible. Then patch every air leak with tar and put a warm quilt on it at night to keep it warm
Maybe they'd get 5 or 6 months of decent growth? Beyond mid autumn theres probably just not enough light