28 January 2010: The World Health Organization (WHO) will celebrate World Health Day on 7 April 2010, focusing on urbanization and health. Among the key messages related to the Day, it is noted that road transportation has significant effects on human health because of greenhouse gas emissions resulting in climate change. During World Health Day, cities across the globe will open public spaces for cycling and walking, outdoor concerts, health forums or clean-up campaigns. [World Health Day website]