One of the challenging issues facing the participating countries is defining what constitutes a «forest,» — which has made it difficult to measure and compare forest levels. (newsecuritybeat.org)
Less light reaches lower forest levels, and as a result native understory plants such as tree ferns are suppressed. (carnegiescience.edu)
But in Bracknell Forest this level rises to 38 % of entitled families not claiming, 29 % do not claim in Surrey and 22 % in Essex. (bbc.co.uk)