Title: Blue Planet Biomes - Desert Climate
Headings: Desert Climate
Dry Tropical Climate (BW)

Desert Climate Dry Tropical Climate (BW)
Mojave Desert Climate Dry Tropical Climate (BW)
Sonoran Desert Climate Dry Tropical Climate (BW)
Sonoran Desert Climate Dry Tropical Climate (BW)

Content: For the last few years there has been more rain   overall than the climate of 20 years ago. The Mojave Desert   experienced very heavy rains in the 1950s, when surface   runoff resulted in severe erosion of gullies and washes and   heavy silt deposits. A long dry period followed, ending with   the present wet period. According to the   U.S. Geological Survey, vegetation has grown denser since   the early 1970s, most likely due to the increased   precipitation. They conclude that the climate of the Mojave   Desert hasn't been static, and has experienced many changes   this century. Their ongoing research suggests that the   recent climate variation has influenced both the landscape   and the plants and animals of the desert   ecosystem. 2001
Bibliography: A.R. Royo, "The   Mojave Desert - Desert USA", http://www.desertusa.com/du_mojave.html
"Desert Climate", http://biology.fullerton.edu/facilities/dsc/zz_climate.html
"Desert Watch -   Mojave", http://www.enviroweb.org/desertwatch/DW-Mojave.html
"Climate History in   the Mojave Desert Region", http://www-wmc.wr.usgs.gov/mojave/climate-historymain.html
Sonoran Desert Climate Dry Tropical Climate (BW)
The sunlight of the   Sonoran desert changes during the day and it gets hotter. Seasonal temperatures range from an average of 52º F in   the winter, to 86º F in the summer. In some seasons the   temperatures can reach 32º F at night.