UNEP OzonAction Shamila Nair-Bedouelle, the current Head of Branch officially took up her position on 18 December 2012. UNEP OzonAction assists developing countries and countries with economies in transition (CEITs) to achieve and sustain their compliance with the Montreal Protocol on Substances that Deplete the Ozone Layer, and make informed decisions on alternative technologies and ozone-friendly policies. UNEP OzonAction has implemented over 1,000 projects and services that have benefited more than 100 developing countries. It has also assisted 17 CEITs and provided further services that have served another 40 countries. In order to help developing countries comply with the Montreal Protocol, the
Separation of concerns 1989, Chris Reade wrote a book titled "Elements of Functional Programming" that describes separation of concerns: Reade continues to say, Separation of concerns is crucial to the design of the Internet. In the Internet Protocol Suite, great efforts have been made to separate concerns into well-defined layers. This allows protocol designers to focus on the concerns in one layer, and ignore the other layers. The Application Layer protocol SMTP, for example, is concerned about all the details of conducting an email session over a reliable transport service (usually TCP), but not in the least concerned about how the transport service