Nitrogen Deposition As Atmospheric Precipitation and It’s effects on Trees on the Portland State University Campus — Feb, 2015
This slideshow video is of trees on the Portland State University campus Feb. 9, 2015. It shows the effects of growing in a nitrogen rich atmosphere where rampant growth takes place because of nourishment from the anthropogenic deposition of nitrogen caused mainly from the burning of fossil fuels.
These photos were taken immediately after the 13th annual Urban Ecology & Conservation Symposium. – DT Lange