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Why Just Planting Trees Won鈥檛 Save the Planet

Season 52 Episode 8 | 3m 04s

A paper published in 2019, estimated that there is enough land on Earth to support an extra trillion trees to capture carbon. But in the rush to grow trees, people ignored the supporting environment that exists in a forest. Discover why biodiversity matters in forests.

National Corporate funding for NOVA is provided by . Major funding for NOVA is provided by the NOVA Science Trust, the , and PBS viewers.
Extras
After centuries of pseudoscience, researchers examine the causes of racial health disparities.
A team of experts put an 18th-century musket to the test 鈥 revealing how deadly it really was.
Its nickname was the 鈥淭urtle鈥.
Two students created glasses that can identify people on the street, without them knowing.
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
Investigate medical algorithms in which the patient鈥檚 race drives decisions.
Evolution seems to favor these numbers.
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
To better study the UFO phenomenon, science needs more eyes on the skies.
A nearly 3,000-year-old canopic jar is discovered in an Egyptian tomb.