BRUSSELS - The Botanic Gardens Conservation International (BGCI) published a report finding that at least 30 percent of the world's trees are in danger of becoming extinct in the near future.
There are about 60,000 known species of trees in the world. At least 17,500 of them are at risk of being wiped out.
Some 142 species have already disappeared, while 440 species have fewer than 50 individual trees left.

