by Margie Kelk
7:47 Antarctica is beautiful, with magnificent icebergs and glaciers glinting blue in the sunlight. But this beauty has become threatened indirectly by human activity. Greenhouse gasses and climate change are produced by modern civilization. The seas are growing warmer, and this will cause a great loss in biodiversity in once cold Antarctic waters as plants and animals are unable to adapt to warmer temperatures and die off. High levels of ocean acidification caused by the absorption of high levels of CO2 will cause more ecological havoc, as marine invertebrates and corals are adversely affected. This will alter key Antarctic marine food chains, and, unfortunately for humans, cause flooding in many parts of the world as the Antarctic ice shelf melts away and releases more and more water into the oceans. All of this creates a very depressing picture. The very existence of Antarctica is now threatened by human activity.