The WHO has launched the Global Network of Age-Friendly Cities, an effort to link cities who “address the environmental and social factors that contribute to active and health ageing in societies.” This is in response to statistics cited on the WHO site, including: (1) In 2000, more than 600 million people in the world were aged 60 – this number will grow to almost 2 billion by 2050; (2) the global aged as a percentage of the total population will double by 2050 – to 22% of the entire population. Download the guide and checklist here.