Juglans Nigra (eastern black walnut) which is probably the most widespread walnut in north america, though there are like a half dozen other species.
Probably also what you’d see labeled “American walnut” in Europe. They taste stronger than juglans regia (eurasian walnut), but the shells are way harder, so it’s trickier to grow as a crop.
Looking at walnut jam, it looks like it might be a lot of work, but maybe I’ll try next year. https://foragerchef.com/cooking-with-green-walnuts/






















Not exactly. The specific heat of ice is about half of the specific heat of water.
So 6 tonnes of urine at 37°C would take 12 tonnes of ice from -37°C to 0°C.
That’s still ice, though, and it takes way more energy to thaw ice that to warm ice from -37 to 0.
Actually, I’ll just do the math.
6 Mg piss * 37°C * 4.18 J/g°C = 929 MJ
Let’s say ambient ice temp is -20°C.
20°C * 2.05 J/g°C * X + 333.55 J/g * X = 929 MJ
X ~2.5 tonnes of ice melted.
Not too bad. I suspect the change in albedo is the real problem.