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Browse by Category: EARTHWORKS & SYSTEMS

Earthworks & Systems
Air: What’s a Tree Got to Do with It?
The Vanishing of the Arctic Ice Cap
Earth at-a-Glance: You Are Here!
Earth's Beginnings: The Origins of Life
The Quiet Evolution of Trees
Evolution of Land Plants: How Did Plants Move Onto the Land?
The Tilting of the Earth:  Shaping Our Seasons and Climates
The Most Important Organism?
On the Move!: Bird Migration Holds Clues to Public Health
As the Earth Warms: The Thinning of the Arctic Ice Cap
Earth’s True Vital Signs Revealed
Over Antarctica, the Ozone Hole May Be Shrinking