One important fact about droughts is that they increase the risk of wildfires. Low moisture and lack of precipitation can create hazardous conditions in forests and range lands that may create wildfires capable of causing property damage, injury or death. Another import...
As of October 2015, the California drought encompassed more than 98 percent of the California state, notes SeaMetrics.com. The drought began in 2012, with Governor Jerry Brown declaring a drought state of emergency in January 2015.
Droughts are caused by changes in land and sea surface temperatures, atmospheric circulation patterns and soil moisture content. A change in any one of these factors sets up a cyclical chain of events that can result in extreme climate conditions such as drought.
Put simply, droughts are caused by a prolonged depletion of precipitation in a certain ecosystem or climate over a long period of time. Unlike normal dry spells, droughts are so severe that they can thoroughly dry out vast expanses of land, like deserts. Droughts can be...
All droughts are ultimately caused by a lack of precipitation. This reduced precipitation does not have to be local; areas that receive water from rivers, for example, can be affected by a lack of precipitation thousands of miles away.
According to About.com, there are many causes for drought, but the most important one "relates to the amount of water vapor in the atmosphere, as this is what creates precipitation." Moist, low pressure systems tend to bring more rain, snow, sleet and hail, while dry hi...
During a drought, the affected area has less water, which can cause plants to struggle and die. Droughts can also cause erosion and threaten animal populations.