与此同时，离它不远的印度洋却水温上升，这一现象暗示着，降雨量的减少实际是人类一手造成的长期全球性气候变暖的一部分。
This decline coincided with a rise in the surface temperature of the neighboring Indian Ocean, a hint that the decline in rainfall is in fact part of the longer-term process of man-made global warming.