[sandypossum]

I'm with Zen. I like the art, I like the method, I like the labyrinth. But I don't get why this is particularly a "piece was made to bring attention to the problem of sunlight/heat that cannot escape back into space because of greenhouse gases".

I know nothing about the Delta del Ebro (and am too lazy to google it) to see why it should be highlighted. Can a less lazy Cellarites clue me in?

BTW, our local beach (Waratah Bay) has a beach that wide at low tide. Yep, takes ages to get out to the water.