The world population is growing quickly.  There were 6 billion people on this earth in 2000 and there will be a projected 8 billion people on this earth by 2025.  Housing demand will continue to increase.  As an environmentalist, I hope with my whole heart that wood is the primary building material for that housing.  Does the public understand where cement comes from? That the aggregates comes from digging out quarries, stream beds, and leveling mountains and hills?  Do they understand what is needed to create steel?  I hope the sun has not set on the timber economy.