This startup grows kelp then sinks it to pull carbon from the air

Carbon emissions are a huge contributor to climate change, so companies are getting creative about finding ways to suck the heat-trapping element out of the atmosphere and slow global warming.

One Maine-based startup, Running Tide Technologies, is experimenting with farming kelp, a type of seaweed, in an effort to pull carbon from the air and store it deep beneath the ocean floor, potentially giving the world another nature-based tool to curb climate change. Running Tide Founder Marty Odlin, a Dartmouth graduate and engineer whose family includes generations of fishermen, is working with a team of engineers, software developers, oceanographers, maritime professionals, data scientists and hatchery technicians to bury massive amounts of kelp at the bottom of the ocean. Odlin is aiming to "restore and then accelerate that natural process" of seaweed soaking up carbon from the atmosphere, he told CNN Business.