North American umber prices are continuing to surge amid Russia's invasion of Ukraine, and traders could soon see even bigger price swings.  Futures have been on a wild ride since the onset of the COVID-19 pandemic, and they soared to a record high of $1,711 per thousand board feet last May. After tumbling through the spring and summer, they have been rebounding and got a fresh jolt from Russia's war. Since Vladimir Putin ordered troops into Ukraine, prices have jumped 14% to $1,452, putting them just 15% below the all-time ...