Transportation Secretary Volpe made headlines last month when he urged an international agreement for tighter controls to curb oil pollution by tankers that dump oily "ballast water" at sea.
Iowa Science Teachers' Journal
© Copyright 1971 by the Iowa Academy of Science
"It's What We Tried to Tell Them Half a Century Ago,"
Iowa Science Teachers Journal: Vol. 8
, Article 9.
Available at: https://scholarworks.uni.edu/istj/vol8/iss3/9