A A D D e e c c a a d d e e o o f f R R e e s s e e a a r r c c h h o o n n t t h h e e E E n n v v i i r r o o n n m m e e n n t t a a l l I I m m p p a a c c t t s s o o f f P P u u l l p p a a n n d d P P a a p p e e r r M M i i l l l l E E f f f f l l u u e e n n t t s s i i n n C C a a n n a a d d a a ( ( 1 1 9 9 9 9 2 2 – – 2 2 0 0 0 0 2 2 ) ) M.E. McMaster, J.L. Parrott and L.M. Hewitt National Water Research Institute Environment Canada NWRI Scientific Assessment Report Series No. 4