Power of cork key to climate change fight, scientists say

One of the planet's most natural defenses against climate change and a key element in sustainable products is found in wine bottles around the world.

In Portugal, farmers are only able to harvest bark by hand from the trees during a three-month window in the summer every nine years, and they use careful techniques to avoid wounding the trees."The tree tells us if we can take or not; you cannot force the cork to come apart," Conceição Santos Silva, a forest engineer, told ABC News last summer while the farmers were working on the trees.

"What does not go into a bottle top, can be made into aerospace and defense applications, can be made into footwear, flooring, heavy construction, surfboards," he said.The cork that’s of a lower quality is broken down into tiny bits, or granules, which are then assembled into sheets, and bound together by glue. That bonded cork is then used to make those materials, according to engineers.

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