The time for studies is past. The time to apply what we already know is here. Economic progress may reduce cost rates. But we all pay for air pollution now, every day. Without even counting the cost to human life and health—for these are literally beyond price—it is clear that air pollution costs the people of New York at least $1 billion a year—$70 for every man, woman and child in the metropolitan area. That cost we pay every day; surely we can invest one-tenth of that amount to save ourselves the other nine-tenths.