This means agencies could power their communication system in the field using an improvised local network if a disaster wipes out Internet connectivity, electricity, or both, like Hurricane Katrina did along the Gulf Coast.

FORBES: Crisis Communicating

Whether you are looking at London leading on congestion charging, or San Francisco leading on solar power (with a system the size of a football field on top of its convention centre), it is clear that strong civic leadership matters most of all.

BBC: Time to leave the comfort zone