Richard Preston: Climbing the world's biggest trees

TL;DR

Redwood trees, the tallest living organisms on Earth, are a symbol of both beauty and vulnerability.

Transcript

The north coast of California has rainforests -- temperate rainforests -- where it can rain more than 100 inches a year. This is the realm of the Coast Redwood tree. Its species name is Sequoia sempervirens. Sequoia sempervirens is the tallest living organism on Earth. The range of the species goes up to as much as 380 feet tall. That's 38 stories ... Read More

Key Insights

• 🌲 The Coast Redwood tree (Sequoia sempervirens) is the tallest living organism on Earth, reaching up to 380 feet tall.
• 🌿 96 percent of the Coast Redwood forest has been cut down, but around four percent remains intact and protected in small parks along the north coast of California.
• 🎋 Redwood rainforests are under-explored and continue to reveal new discoveries, such as the world's tallest tree, Hyperion, found in 2006.
• 🌳 Redwoods have a complex structure and are constantly in motion, moving upward into space and filling Redwood time over thousands of years.
• 🌱 The Eastern Hemlock forest in the eastern United States has been devastated by an invasive parasite, leading to the potential extinction of the species and the loss of a complex ecosystem.
• 🐜 Some Redwood trees have unique ecosystems with species that are not found anywhere else on Earth, highlighting their biodiversity and ecological importance.
• 🌍 The destruction of ecosystems and the invasion of non-native species is a major concern for the environment, caused largely by human activity.
• 🤔 The Redwoods can teach us about human time, love, and curiosity, and provide us with a sense of wonder and connection to the natural world.

Questions & Answers

Q: How tall can Coast Redwood trees grow and how does their height compare to a typical city building?

Coast Redwood trees can reach heights of up to 380 feet, equivalent to a 38-story building in midtown Manhattan.

Q: Why is it difficult to determine the age of the oldest living Coast Redwoods?

The oldest living Coast Redwoods are believed to be around 2,500 years old, but their exact age is unknown because their centers are hollow and drilling into them is not possible.

Q: What has happened to the Hemlock trees in the Eastern United States?

The Hemlock trees in the Eastern United States have been devastated by an invasive species called the Hemlock woolly adelgid, resulting in the loss of an important ecosystem.

Q: How are Redwood trees able to move moisture from the air into their trunks?

Redwood trees have the ability to extract moisture from the air and transport it down to their trunks, possibly even into their root systems.

Q: What is the significance of the discovery of an unknown species of ant on a Redwood tree?

The discovery of an unknown species of ant on a Redwood tree highlights the unique and diverse ecosystems that exist within these trees, with some species found nowhere else on Earth.

Answer: Redwood trees are not only beautiful and awe-inspiring, but they also provide important lessons about the fragility of ecosystems and the impact of human activities. The devastation of the Hemlock forests and the discovery of unknown species on Redwood trees highlight the urgent need for conservation and protection of these precious natural resources.

Summary & Key Takeaways

• The coastal rainforests of Northern California are home to the majestic Coast Redwood tree, the tallest living organism on Earth.

• Despite being protected now, these rainforests had been heavily logged in the past, with only about four percent remaining intact.

• Explorers have uncovered the hidden world in the canopy of the Redwood trees, discovering new species and complex ecosystems.