Ocean levels are rising.

海平面正在上升。

《牛津词典》

World ocean levels rise.

世界海平面上升。

youdao

The cause is unclear, but rising ocean levels and nitrogen dumped from the New York City sewer system are likely culprits.

造成这种现象的原因仍不明朗，但是海平面的日益增长和纽约下水道系统倾倒的氮化合物是可能的元凶。

youdao

On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21

He obviously continues to worry a lot about Hansen's predicted catastrophic rise in ocean levels.

FORBES: Magazine Article

Studies by the International Union for Quaternary Research conclude that some ocean levels have even fallen in recent decades.

FORBES: Hot Sensations Vs. Cold Facts

The destructive flooding caused by the storm Sandy, which struck the U.S. East Coast in late October, revived anxieties about rising ocean levels in heavily populated coastal regions.

WSJ: Polar Ice Sheets Melt at Faster Pace