Bloomberg BusinessWeek – All the Biggest Environmental Risks Facing the World’s Biggest Cities – From landslides and extreme heat to insect infestations and airborne diseases, these are the most worrying hazards in urban areas with more than 1 million people…” Climate hazards include: extreme heat; forest fire; water scarcity and salt water intrusions; biological hazards; storm and wind; extreme precipitation; flood and sealevel rise; extreme cold temperature; mass movement; reported facing no hazards.