The President is committed to ensuring the health and productivity of ocean, coastal, and Great Lakes resources for the benefit of all Americans.

WHITEHOUSE: Deputies Building on Great Momentum for Our Oceans

"20 years and 100-200 million dollars of public funds have identified this iron tonic solution as a way to restore the productivity of the ocean, " he said.

CNN: Topical waters

Some, including Dr Riebesell, suspect that these physical and chemical effects of warming may prove a greater driver of productivity change in the ocean than altered pH.

ECONOMIST: Ocean acidification