Standing in bright sunlight filtered through the dirty windows of a giant self-storage warehouse in Queens, New York, Kevin Sudeith unfurls one carpet after another, unleashing a cloud of wool fibers and mothball fumes.
Low in the sky there's the classic cotton wool Cumulus, the Stratus, a layer of "rather dull" cloud, and higher up Cirrus - "a translucent delicate streak as if a watercolour brush has been stroked across the blue".