m05.    How does recycling paper affect forests?

Each American throws away paper that accounts for four trees per year. Nearly $1 for every $17 spent for food goes for packaging. Each year the US workforce throws away enough paper to build a 12-foot wall that stretches from New York to Los Angeles. Recycled paper takes 37-64% less energy to produce than virgin paper; reduces air pollution from pulp mills by 74-95%; produces 35% less water pollution; and recycling plants produce 5 times more jobs than do pulp plants.

e03.    How do pathogens and insects affect trees?

e11.    What types of old-growth forests are there?

e12.    Where are tropical forests?

g16.    What is matter?