This document discusses the relationship between globalization, international trade, and environmental protection. It summarizes two landmark trade disputes from the 1990s - the Tuna-Dolphin case and the Shrimp-Turtle case - that highlighted tensions between free trade and environmental regulations. In both cases, WTO dispute panels ruled against US environmental laws, prioritizing free trade. The document examines ongoing debates around balancing economic growth, trade liberalization, and sustainability. It also surveys major global environmental issues and international efforts to address problems like biodiversity loss, pollution, and climate change.