The normalcy bias can manifest in response to warnings about disasters and actual catastrophes. Floods are among the most devastating of natural disasters. These floods include some of the deadliest natural disasters ever recorded. Each day communities respond to numerous disasters or emergencies. Wireless sensor networks can be effective in preventing adverse consequences of natural disasters, like floods. This information is important to consider when reacting to future earthquakes and other natural disasters. Environmentalists consider these events major environmental disasters. These are lists of nuclear disasters and radioactive incidents. Methane gas explosions are responsible for many deadly mining disasters. Houston has also been the site of numerous industrial disasters and construction accidents. Kidu includes providing immediate assistance to victims of natural disasters. It is considered to be one of the worst human-caused environmental disasters. This legislation has had far reaching effects for the victims of subsequent aircraft disasters. China is one of the countries most affected by natural disasters. Pregnant women are one of the groups disproportionately affected by natural disasters.