1971's Aquaman #56 dealt with the trouble of American lake pollution.
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Lake Erie was so polluted that the Cuyahoga River caught fire in 1969!
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The pollution was also causing algae to grow out of control.
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In this comic, Detroit is attacked by overrun algae from Lake Erie.
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The book promises Aquaman fighting algae creatures, but that doesn't happen.
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Instead, we meet a Detroit superhero named Crusader, who has been around for awhile.
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The algae is fueled by a satellite designed to keep Detroit sunny all day long!
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Aquaman saves a young girl from being devoured by the overrun algae.
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Crusader dies. The satellite was for him, since he couldn't see well anymore.
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Aquaman then destroys the satellite, thus quelling the algae threat.
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