What is deforestation and what parts of the world are experiencing the greatest forest losses? List some major harmful environmental effects of deforestation. Describe the encouraging news about...

What is deforestation and what parts of the world are experiencing the greatest forest losses? List some major harmful environmental effects of deforestation. Describe the encouraging news about reforestation in the United States. Explain how increased reliance on tree plantations can reduce overall forest biodiversity and degrade forest topsoil. How serious is tropical deforestation? Describe some major causes of tropical deforestation. Explain how widespread tropical deforestation can irreversibly convert a tropical forest to a tropical grassland.