European customers want to replace tetrabrom with nonhalogenated, or more ozone-layer-friendly, flame retardants.

FORBES: Paddling Upstream

During the dinosaurs' time on Earth, "the atmosphere became charged with methane, which finally damaged the ozone layer and brought about great changes in the vegetation, " it added.

BBC: Ill wind 'killed dinosaurs'

He supported research into saving the ozone layer and was interested in communication with other possible worlds.

ECONOMIST: Freddy Heineken