Expert says Arctic trees got equatorial rain A scientist says giant trees survived in the Arctic Circle 45 million years ago thanks to a prehistoric weather pattern. She says they were warmed and watered by moist equatorial winds which are no longer around and coped with four months of darkness each year. The chemistry of the trees' fossils proves they drank water which evaporated over the equator and was transported north. That ancient water almost matches water which makes a similar journey over vast areas of land today. The island is now desolate apart from a few mosses but was...