Mexican cement giant Cemex S.A. de C.V. announced recently the launch of Hotspots Revisited, produced by the company, in collaboration with Conservation International, AgrupaciÓn Sierra Madre, and the University of Virginia. Hotspots Revisited identifies 34 regions worldwide where 75% of the planet's most threatened mammals, birds, and amphibians survive within habitat covering just 2.3% of the earth's surface, roughly equivalent to the combined areas of the five largest U.S. states.

The new book, which features nearly 300 photographs, contains the results of an in-depth reanalysis of global hotspots, a widely used prioritization strategy for allocating conservation dollars to areas where they can do the most good. The new analysis shows that an estimated 50% of all vascular plants and 42% of terrestrial vertebrates exist only in these 34 hotspots.

The publication, the 12th in Cemex's series of conservation books, can be purchased at www.conservation.org.