
Only a small percentage of Americans visit the Grand Canyon, but its existence, as an ancient place of inestimable value, has a global psychological importance.Photograph by Jim Kidd / Alamy
The Line 3 story started for us last month, and continues today, with another essay by Bill McKibben, this time using the Grand Canyon for context:
Lessons from the Fight for the Grand Canyon
We once saved natural landmarks for their beauty—now it’s for survival, too.
To float down the Colorado River through the Grand Canyon is to meander through geologic time. As you descend, the formations you pass include the Coconino Sandstone, the Redwall Limestone, the Bright Angel Shale—by the time you reach the tortured-looking Vishnu Schist, you’re a couple billion years back in time. Continue reading






















