Summary of If ocean levels are rising, why can't we see it?

00:00:00 - 00:25:00

This YouTube video discusses a scientist's claim that we will have to evacuate the coasts by 2018 due to the effects of climate change. The video argues that there are different scenarios for different outcomes, and that if we follow the "do your own research" path, CO2 will continue to rise at the same rate and sea level will continue to rise for hundreds of years.

• 00:00:00 The video discusses scientific predictions made about sea level rise, and how this is being measured. The main points are that Greenland is losing ice and contributing to sea level rise, and that terrestrial storage is also contributing.
• 00:05:00 This 1-paragraph summary discusses how sea level changes over time, and how scientists use measurements from different sources to estimate current sea level rise. The article explains that despite popular belief, sea level has not risen by a millimeter in the past 100 years, and may not be rising at all due to melting ice. When looking at past photos, it is evident that the level of water in any given location can vary depending on the time of year, and that measuring sea level rise using traditional methods is inaccurate. Facebook users have been sharing a meme that supposedly shows a rise in sea level of "naught point naught centimeters." However, when examined more closely, the photo shows a difference in water levels only during high tide, and even then, the rise is only gradual.
• 00:10:00 The presenter discusses ocean levels, noting that the rate of rise has been increasing in the past and is continuing to do so. He then discusses the difference between linear and geometric curves, explaining that linear curves represent a constant velocity, while geometric curves represent an acceleration. The presenter points out that real scientists have found that the rate of ocean level rise is accelerating, and that this information is difficult to come by in popular media.
• 00:15:00 This YouTube video is about a scientist who claims that scientists were predicting that we would have to evacuate the coasts by 2018, but this hasn't happened yet. The scientist argues that there are different scenarios for different outcomes, and that if we follow the "do your own research" path, CO2 will continue to rise at the same rate and sea level will continue to rise for hundreds of years.
• 00:20:00 In 1988, James Hansen predicted that lower Manhattan would be underwater within 30 years due to the effects of climate change. However, his prediction was later changed to 2018 because of an error in the calculations. Tony Heller decided to change the time period because he suspected that Hansen's answer was correct. After checking with his own book and interview, Hansen confirmed that his answer was correct.
• 00:25:00 James Hansen, a renowned climate scientist, made a statement in 1988 or 1989 that the west side highway would be inundated by the rising sea levels. However, more recent scientific studies suggest that this is not the case. In this video, Hansen discusses the complexity of geophysics and how his predictions should be taken with a grain of salt.