Scientists Friday warned of an alarming increase in the death rates of the largest living organisms on the planet, the giant, old trees that harbour and sustain countless birds and wildlife.
A woman stands amongst a grove of a Giant Sequoia (Redwood) trees, in the Sequoia National Park in Central California. Redwood trees, which are native to California's Sierra Nevada Mountains, are the world's largest by volume reaching heights of 274.9 feet (84.2 metres) and a ground level girth of 109 feet (33 metres).
Research by universities in Australia and the United States, published in Science, said ecosystems worldwide were in danger of losing forever their largest and oldest trees unless there were policy changes to better protect them.
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