ENVI 105
The Co-Evolution of Earth and Life Fall 2019
Division III
Cross-listed GEOS 101 / ENVI 105

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Our planet is about 4.6 billion years old and has supported life for at least the last 3.5 billion of those years. This course will consider the inter-related nature of Earth and the life that inhabits it, starting with the first living organisms and progressing to the interaction of our own species with the Earth today. Students will investigate the dynamic nature of the Earth-life system, examine many of its feedbacks, and learn about the dramatic changes that have occurred throughout the history of the Earth. We will ask questions such as: How did the Earth facilitate biologic evolution, and what effects did those biologic events have on the physical Earth? When did photosynthesis evolve, how can we detect that in the rock record, and how did this biological event lead to profound changes in the environment? How and why did animals evolve and what role did environmental change play in the radiation of animal life? How did the rise and radiation of land plants affect world climate? How do plate tectonics, glaciation, and volcanism influence biodiversity and evolutionary innovation? What caused mass extinctions in the past and what can that teach us about our current extinction crisis? Labs will involve hands-on analysis of rocks, fossils, and real-world data as well as conceptual and analytical exercises; field trips will contextualize major events in Earth history and will help students learn to read the rock record. Through these investigations, the class will provide a comprehensive overview of Earth history, with special attention paid to the geological and paleontological history of the northeastern United States. This course is in the Sediments and Life group for the Geosciences major.
The Class: Type: lecture; one laboratory per week plus one all-day field trip
Limit: 30
Expected: 30
Class#: 1509
Grading: yes pass/fail option, no fifth course option
Requirements/Evaluation: evaluation will be based on lab work, short quizzes, midterms, an independent project, and a final exam
Prerequisites: none
Enrollment Preferences: underclassmen
Distributions: Division III
Notes: This course is cross-listed and the prefixes carry the following divisional credit:
GEOS 101 Division III ENVI 105 Division III
Attributes: ENVI Natural World Electives
EXPE Experiential Education Courses
GEOS Group B Electives - Sediments + Life

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