A fishing bonanza would require big ecological change.

渔业的发展机遇将需要极大的生态改革。

To ensure that our thirst for drinking water doesn't cause an ecological sea change.

确保我们对饮用水的渴求不会导致海洋生态变化。

The many rock artists who lived there created a record of this ecological change.

居住在那里的许多摇滚艺术家创造 了这种生态变化的记录。