I'm doctor Anthony Luis and this is climate connections Visitors to grey's reef national marine sanctuary off the coast of Georgia May spot loggerhead turtles dolphins or even a whale And below the surface hundreds of species live in the nooks and crannies of the rocky sea floor Things like sponges and sea squirts and things called moss animals and corals And all of these organisms encrust the bottom Danny gleason directs the institute for coastal plain science at Georgia southern university He says this invertebrate community supports other marine life by providing food creating habitat and filtering water but oceans have absorbed about a third of the carbon pollution that humans have added to the atmosphere The extra CO2 makes the water more acidic which harms animals such as oysters shrimps and corals Yet gleason says much about the effects of acidification remains unknown His team is researching how a variety of bottom dwelling critters respond to more acidic conditions What's the effect on the entire community of the invertebrates that are out there He says it's critical to understand how ocean acidification will affect the vast and interconnected web of life beneath the waves Climate connections is produced by the Yale center for environmental communication To hear more stories like this visit climate connections dot org My name is Corporal Bradley Joseph sites Jerry Reed Kate Webber These are real veterans Facing a real challenge I have PTSD And I have PTSD.