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.
In 2009, Houston was ranked as the 5th most polluted city in the US for Ozone pollution, with the Dallas/Ft. Worth area is not far behind as 7th most polluted. Among other reasons, the negative health impacts of air pollution call on us as people of faith to take action to adopt clean, renewable energy. There is a growing concern about the health effects of air pollution on Godâs creation.