Tomorrow the world will celebrate the 40th annual Earth Day, a time to pull that $5 reusable grocery bag out of the closet for the first time as you drive to the grocery store to buy that milk you forgot, or turn off the TV for an hour and play on your iPhone, at least until it the batter dies and you have to charge it.
Created back in 1970 by Sen. Gaylord Nelson, Earth Day had humble but ambitious beginnings, latching on to the most serious and visible environmental failures of the era.
Yahoo! would like to remind you, in a segment called, "Who knew?" that the great Cuyahoga river fire was one such environmental failure and contributed, at least partially, to Earth Day's foundation.
Who knew, indeed, Yahoo? Except everybody. But it's Earth Day tomorrow, so we'll give you a break.
On a more serious note, if you'd like to get involved or learn more, visit Earth Day Coalition Cleveland.