Earth Sciences

Associate in Arts in University Studies (20-22 Unit Emphasis) Earth Sciences · Shasta College · 2026-2027 Catalog

The Earth Sciences encompass a broad set of disciplines that are often themselves interdisciplinary in nature and the various emphases within this degree can position the transfer student on a path toward specializations in Earth (Geologic), Atmospheric, Biologic or Environmental Science. Earth History includes the geologic, biologic, oceanographic and atmospheric history of the Earth drawing upon aspects of chemistry and physics to formulate an understanding of our planet through time. Major aspects of the Atmospheric Sciences emphasis focus on dynamic interactions of the atmosphere with Earth’s surface, especially the influence of the oceans on weather and climate, the oceans being the single most important earthly influence on our atmosphere. As a planet, the dynamic interaction of Earth’s subsystems—the geosphere, hydrosphere, and atmosphere—define the biosphere itself, the final subsystem within the Earth System emphasis, though the biosphere has as much an impact upon the other subsystems as they have on life, something that the Earth System emphasis illustrates. Examples of emphasis application in the degree include conservation sciences, environmental law and policy, general, systems ecology and marine ecology, watershed studies, evolution, archeology/anthropology, physical/environmental geography, general and environmental geology, meteorology, climate sciences, natural resource management, science education and much more.

Program learning outcomes

Upon successful completion of this degree, the student should be able to:

  1. Demonstrate the interrelated aspects of our natural world through feedback loops across subsystems such as hydrosphere-atmosphere, atmosphere-biosphere, hydrosphere-atmosphere-biosphere connections or any of the planet's subsystems.
  2. Explain life's connection to the abiotic world through the inclusion of evolution/natural selection and concepts in ecology/environmental quality and relate the dependence of life and the diversity of life to the abiotic world.
  3. Use the intersection of the hydrosphere, atmosphere and geosphere to define how they support the biosphere noting habitat qualities reliant on each within that intersection.
  4. Understand physical process that shape Earth's surface and the influence this has upon various aspects of the Earth system, including the anthrosphere.
  5. Identify natural negative feedback loops in the Earth system and how one might be interrupted, or reversed to become a positive feedback loops, while including impacts to the global ecosystem.
CourseTitleUnits
Degree Core
ESCI-17Earth System Science3
BIOL-1Principles of Biology4
orBOT-1General Botany4
orZOOL-1General Zoology4

NHIS 5+5L Natural History of the Neotropics (3) + Natural History of the Neotropics Laboratory (1) OR NHIS 15+65 Natural History of California (3) + Natural History of the Redwood Coast (1) OR AGNR 60+61 Environmental Science (3) + Environmental Science Laboratory (1) OR

CourseTitleUnits
orESCI-6Ancient Life4
Degree Emphasis (Choose one of the following)
Emphasis in Geology and Earth History
ESCI-1The Active Earth4
ESCI-2Earth: The History of Our Planet4
orESCI-6Ancient Life4
ESCI-7California through Time, A Geologic Journey3
ARCH-3Principles of Archaeology3
orHIST-3World Civilization: 1500 to Present3
At least 4 units from the following
ESCI-32Geology of the Northern Sierras and1.5
ESCI-32LThe Northern Sierras Lab and Field Studies0.5
ESCI-33The Sacramento Rvr Basin, Frm Source to Sea and1.5
ESCI-33LThe Sacramento Rvr Basin Lab/Field Studies0.5
ESCI-34The Modoc Plateau and1.5
ESCI-34LThe Modoc Plateau Lab/Field Studies0.5
ESCI-35Lassen Volcanic National Park and1.5
ESCI-35LLassen Volcanic Nat’l Park Lab/Field Studies0.5
ESCI-36The Mount Shasta Region and1.5
ESCI-36LMt. Shasta Laboratory and Field Studies0.5
ESCI-37The Northern California Coast and1.5
ESCI-37LNorthern California Coast Lab and Field Studies0.5
ESCI-38Point Reyes National Seashore and1.5
ESCI-38LPoint Reyes Nat’l Seashore Lab/Field Studies0.5
Emphasis in Atmospheric Sciences
ESCI-14Meteorology3
ESCI-14LMeteorology Laboratory1
ESCI-15Oceanography4
ESCI-18Global Climate Change: Past, Present and Future3
GEOG-5Digital Geographies3
Emphasis in Earth Systems
Geosphere Requirement (choose one of the following)
ESCI-1The Active Earth4
ESCI-10Environmental Geology4
GEOG-1APhysical Geography and3
GEOG-1ALPhysical Geography Lab1
Hydrosphere Requirement (choose one of the following)
ESCI-15Oceanography4
AGPS-25California Water3
Atmosphere Requirement (choose one of the following)
ESCI-14Meteorology and3
ESCI-14LMeteorology Laboratory1
ESCI-18Global Climate Change: Past, Present and Future3
Anthrosphere Requirement (choose one of the following)
AGNR-11Environmental Ethics3
AGPS-24Soils3
ANTH-C1001Introduction to Biological Anthropology3
ANTH-2Cultural Anthropology3
ANTH-25Indigenous Peoples of North America3
GEOG-1BHuman Geography3
GEOG-5Digital Geographies3
GEOG-7California Geography3
GEOG-8World Regional Geography3
POLS-25Introduction to International Relations3
SOC-C1000Introduction to Sociology3
SOC-25Race, Ethnicity, and Society3

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