Stony Brook University scientists are helping to protect Long Island's waters and marine life with seaweed.

The researchers say kelp pulls carbon dioxide out of the water and raises pH levels.

They say that this combats ocean acidification, a process that threatens shellfish populations across the globe.

"And now what we know is that growing kelp can help fight the effects of climate change, reduce the acidity in our waterways and also help grow scallops and other shellfish," says Adrienne Esposito, of the Citizens Campaign for the Environment.