She is trying to work out how the trees survived four months of darkness each year during the Arctic winters.
She said: "We don't have plants that can survive under those conditions today, let alone forests. For a tree to endure four months of daylight is like you or I going without sleep for four months."
Prof., the four months without light is easy. In NJ the trees drop their leaves for about five months, efectively 'surviving FIVE months of darkness each year'. Her real problem is the way the obvious hugger is anthropomorphizing these dead frozen trees. She will never be happy until she finds out how they suffered.
LOL. (I still have that opening, hee,hee.)