>> they are all in the 35-40 range. >> reporter: the designer maya lin was picking out dying trees. >think the two, they are just too short. >> okay. >> reporter: for a public art project aimed at illuminating the cost of climate change. >> if we cut him at 40, he may be okay. >> reporter: she made it clear she wanted trees in trouble. >> we are looking for something that will die. >> reporter: forester bob williamss who worked with lynn said these krecedars are dying because of the rising sea levels and hurricanes. >> we have to get the public to better understand our forest and what is happening and this is terrific. >> reporter: when the did you first see this idea in your head? >> summer of 2019. >> reporter: yeah. lin's idea -- >> i would like to bring a ghost forest to manhattan. >> reporter: and in march, that's what she did. the trees trucked in to new york could be no taller than 52 feet. so the flat beds on could take the city's tight corners. >> the main preparator lost a lot of sleep saying we would move 50 foot dead trees to the middle of manhattan. >> reporter: late at n