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The AGCI Virtual Classroom

The AGCI classroom is a place to learn about the Earth, how it changes over time, how the air, water, land, and life systems interact, and how humans have become an agent of change on a global scale. You can explore our ever-changing Earth through the six so-called “spheres” that make up the Earth system. The six spheres of the Earth system are the atmosphere (air), geosphere (land and solid earth), hydrosphere (water), cryosphere (ice), biosphere (life), and a subset of the biosphere, the anthroposphere (human life).


5 Key Principals of Global Environmental Change
1. The Earth's natural systems undergo continual change 2. Recently, human beings have become a key agent of change 3. Local changes have global consequences 4. Earth’s systems are linked through interactive processes 5. Global environmental change impacts all life

the earth system
The Earth system is the complex network of properties and processes--geographic, physical, chemical, and biological--that interact to shape the world in which we live. The diagram to the left illustrates the interconnectivity and complexity of the Earth system.