The writing process for the majority of Metallicaâs albums have followed the same process. A large slew of guitar riffs written primarily by James Hetfield, sometimes Kirk Hammett, and rarely the bandâs bass player, (that now being bass virtuoso Robert Trujillo) are reviewed and selected.
1 Delhi is most polluted city in the world in PM2.5 concentrations. 2  Half of the top 20 most polluted cities were in India, according to data.  PM2.5 is considered most harmful to health.
But well, facts are facts. Pune, although one of the quickest developing and growing cities in India is also battling the tentacles of pollution. The city is now more polluted than Mumbai and has an Asian rank of 44 and a world rank of 194. Eeks!