Bet365 app download Lise Sedrez，Associate Professor of the Department of History at the Federal University of Rio de Janeiro, Brazil。Dr. Latin American History from Stanford University in 2005。Once the associate professor of the Department of History of the Changtan Branch of California State University。The main research direction is the history of Latin America environment。She is one of the founders of Latin America and the Caribbean Society of Environmental History (Solcha)。The environmental history of the editor -in -chief includes:a history of Environmentalism: Local Struggles, Global Histories；The Great Convergence: Environmental History of Brics. 

　　Summary of content:15th Century，When Europeans arrive in the Americas，They brought immigration and weapons，But there will be concepts、Bacterial、Animal and plant and specific power -the economic structure is introduced together。Society in the Americas -Ecological Landscapes have experienced completely changes，These changes have promoted the aggression of Europeans，It is a disaster for the indigenous people。16th century，weeds、"Columbus Exchange" composed of animals and diseases deeply reshape the Americas，The speed and breadth of species spread during this period are unprecedented in history。In fact，The landscape of the Americas is a new creation。It is not the wish of the Aboriginal people in the Americas，Not the imagination of European invaders，but the results of the synergy of biological power and social dynamics。[Xu Lu, Li Xinghao translated]