You really need to read Storms of My Grandchildren written by James Hansen, the scientist that discovered Global Warming/Climate Change. It doesn’t just threaten human civilization, but almost all life on the planet. If the oceans reach thermocline and the CO2 and methane that is currently trapped on the bottom is released into the atmosphere the Runaway Greenhouse Effect would be the result and earth quickly ends up like Venus.

Your chart and statement makes you sound like a Climate Change Denier.