This lesson plan is for a 5th year high school science class in Argentina. The lesson focuses on environmental problems and introduces students to several environmental organizations. During the 60 minute lesson, students will define environmental problems, discuss which issues qualify, and learn about organizations like WWF, Friends of the Earth, and Greenpeace. They will read about the origins and purpose of WWF's panda logo. For homework, students will research one organization's logo and complete a chart with details. Assessment will include questions about the content and comprehension of reading passages.