Retreat of glaciers since 1850 doing so due to transient local weather conditions, which have brought more precipitation and cloudier, cooler summers since 2002. Tropical glaciers are located between the Tropic of Cancer and the Tropic of Capricorn, in the region that lies 23° 26′ 22″ north or south of the equator. Strictly, a tropical glacier is located within the astronomical tropics; the area where the annual temperature variation is less than the daily variation, and is within the oscillation area of the Intertropical Convergence Zone. Tropical glaciers are the most uncommon of all glaciers for a variety of reasons. Firstly, the regions are the
Tropic of Capricorn (novel) with "Tropic of Cancer", were boosted by the controversy surrounding their censorship, with complaints against Miller and his publisher on charges of pornography. In the 1940s and 1950s, Miller’s books were hard to find and expensive. The banned books were occasionally smuggled into the US, although they were often seized by Customs. In 1944, accompanied by his soon-to-be third wife Janina Martha Lepska, Miller read excerpts from "Tropic of Capricorn" and "Black Spring" at the Library of Congress in Washington, DC. "Tropic of Capricorn" was banned in the United States until a 1961 Justice Department ruling declared that its contents