Embracing new technologies can be difficult for ‘old dogs’, but when it comes to improving our environment every advance is important and worthy of scrutiny.
It might be hard for some to imagine it, but back in the 1970s, the big west coast cities of San Francisco, Los Angeles and San Diego had very poor air quality. In fact it was so bad that it was compromising the health of residents, especially children. Respirator diseases, particularly asthma was on the increase
