Report on the hypothesis that variations of the total solar
irradiance reaching the Earth and its atmosphere affect the
precipitation and runoff of the western U.S. Includes links to
research papers, bibliography, and climatic data. Article from
American Scientist on study of the San Francisco Bay estuary as
a component of the global climate system showing that natural
fluctuations might be mistaken for anthropogenic trends
affecting waterflow and salinity. Fact sheet on the formation of
acid rain, its effects, investigations, and the program of a
nationwide network of acid rain monitoring stations called the
National Atmospheric Deposition Program/National Trends Network
(NADP/NTN). Over 30 years of substantial warming, the timing of
life cycle events in maize here has changed, threatening the
crop yield by exposing the plant at sensitive phases in its life
cycle to increased heat and drought, and lowering the weight of
its grains. USGS water resources home page for Michigan with
links to detailed hydrologic