How tall can a tree grow? – Valentin Hammoudi

How tall can a tree grow? - Valentin Hammoudi



What makes a tree grow tall? And do trees ever stop growing? Explore how photosynthesis and gravity can affect and limit the height of trees.

Reaching heights of over 100 meters, Californian sequoias tower over Earth’s other 60,000 tree species. But even these behemoths seem to have their limits: no sequoia on record has been able to grow taller than 130 meters. So what exactly is stopping these trees from growing taller, forever? Valentin Hammoudi investigates why trees have limited heights.

Lesson by Valentin Hammoudi, directed by Doug Alberts.

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