We learned last year that many of the effects of climate change are irreversible. Sea levels have been rising at a greater rate year after year, and the Intergovernmental Panel on Climate Change estimates they could rise by another meter or more by the end of this century.As National Geographic showed us in 2013, sea levels would rise by 216 feet if all the land ice on the planet were to melt. This would dramatically reshape the continents and drown many of the world's major cities.Subscribe to BI: Science - https://www.youtube.com/channel/UC9uD-W5zQHQuAVT2GdcLCvg----------------------------------------­----------Follow BI Video on Twitter: http://bit.ly/1oS68ZsFollow BI Video On Facebook: http://on.fb.me/1bkB8qgRead more: http://www.businessinsider.com/----------------------------------------­----------Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.