As previously stated, climate change is a change in global or regional climate patterns. Climate change is expected to have the greatest impact on oceans and other large bodies of water, particularly through floods and droughts. Among the effects of climate change are sea level rise due to thermal expansion and melting glaciers, which will warm the ocean surface and increase core temperature. Returning to Holthaus' article, he states that "water acidification may be worse than rising ocean temperatures." Acidification has a direct effect on molluscs and other hard-bodied marine animals” (Holthaus). Acidification is the decline in the pH of the oceans, due to the release of carbon dioxide into the atmosphere. Climate change is affecting important waterways as rising river water levels and rising temperatures kill fish, especially salmon, which cannot survive in these rivers. Holthaus says: “Salmon are crucial to their coastal ecosystem, like perhaps few other species on the planet. A significant portion of the nitrogen in West Coast forests comes from salmon, which can travel hundreds of miles upstream to lay their eggs. The largest trees on the planet “simply would not exist without salmon” (Holthaus). With the water level warm and low, there would be no salmon, and without salmon populating the rivers, there would be no