Preserving pinyon and juniper forests is urgent for the plant, animal, and human communities that depend on them, including ...
By looking at pine trees and juniper shrubs from northern Norway, scientists identified two extremely cold summers in 1902 and 1877, possibly caused by the eruptions of Mount Pelée on the island ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果