I'm not gonna bother go to the site because I think it's all about acid-rain. Acid rain is a relatively common phenomenon that occurs in urban areas where the air pollution creates acidic chemicals in the clouds. It then rains down. It's not that harmful to humans as far as I know, but it kills animals like fish and shrimp. The nearest it would come to an apocolypse was if a country relied 100% on lobsters for industry, survival, etc., which is not so. So that's what I have to say.
Never mind, I checked the site, and I laughed. I laughed, and laughed, and laughed. This is ridiculous. As far as I know, amino acids are the most complex thing found in void-space, which are actually found all over your body. Sulfuric acid needs geological activity and volcanoes to form the sulphur and all dat. For something as complex as sulphuric acid, The cloud would need to be near, if not in, the center of our galaxy. Plus, any heavy drinkers here have some good news: a cloud of ethanol droplets was found near that region.