The greenhouse gas: CO2 not only influences our climate but also affects our ocean ecosystem. Each year, billions of carbon emissions from fossil fuels are absorbed by the ocean, and this will gradually turn the water into more acidic. This will greatly affect the calcium-based species, such as crabs and shrimps, which are the primary food sources for many marine animals. “We are seeing an overall negative impact from ocean acidification directly on organisms and on some key ecosystems that help provide food for billions,” said Carol Turley, a senior scientist at Britain’s Ocean Acidification Research Program. Many people have thought that the greenhouse gas we produced will only influence species on the ground and in the air; however, they are wrong. The evidence shows that those gases will affect the entire planet.