From the text...'The worst fire season in Mexican history was in 1998. Drought conditions precipitated by a strong El Niño led to unusual fire activity, including crown fires, fire whirls, and rapid spread rates. A total of 14,302 fires burned 2,099,412 acres (849,632 ha) - 3.6 times the annual average. Even worse, 60 people died fighting fire.... The main causes of wildland fires are agricultural and cattle-raising acitivities with deep historic and socioecnomic roots.'