Droughts are a great danger to both natural and human-dominated environments, especially those of high intensity over a long period of time, which can be very damaging and have long-lasting consequences. It describes the climatic conditions that cause it, as well as its various forms and main attributes. It describes present droughts, including droughts that have severely impacted human society. A drought can be thought of as a "ramp" because it usually progresses slowly and takes time to manifest. A decrease in precipitation reduces the flux from the catchment to the water system.
This book gives information on the causes of recent drought and what is being done.