Prominent Historian to Dissect the Ecology of U.S.-Mexico TradeW&L Presents Lecture Series on How Environment Shapes Human HistoryLexington, Virginia • February 14, 2010 -- A special lecture series that examines "Nature and Politics in the Americas" will begin Thursday, Feb. 18 at Washington and Lee University and continue through March. The four programs, featuring nationally- and internationally-known guest lecturers, will examine ways in which the physical environment helped shape human history in Latin America, and will discuss the ecology of international trade, conservation and national parks, climate history and environmental justice.