But oil spills of the sort that now threaten the Timor Sea, forest fires like those that recently afflicted Greece, and other man-made and man-assisted threats to wildlife are transient.

• 但是如今威胁着帝汶海的石油泄漏、最近侵袭希腊的山火以及其它这类人为或者人力助长的对自然的威胁却都是转瞬即逝。