That guy has a big smile for delivering that news. Unnerving as the first thing you see when the story comes up. The video is more unnerving: greater than 50%

That guy has a big smile for delivering that news. Unnerving as the first thing you see when the story comes up. The video is more unnerving: greater than 50% drop measured, apparently still continuing, little interest in stopping the causes, significant health implications.