A rise of 1C/1.6F in global average temperature will raise the sea level by 2.3m/7.6′. We’re aiming for a global temperature rise of 4C/6.4F minimum this century, or over 9.2m/29.4′ in sea-level rise. If it is +6C/9.6F, the sea level rise would be 13.8m/45.6′.
This is not conjecture. It is a past fact that 18,000 years ago, at the height of the last ice age, the sea level was DOWN some 110m/365′, and the present-day Persian Gulf was the then fully exposed “Persian Valley”, with the extended and combined Tigris/Euphrates River running through it.
(*Anthony Marr has published a “theory” that the Persian Valley was exposed for so long that a natural terrestrial ecosystem, including tribal humans, had developed, thrived and evolved upon it. When the sea rose to reclaim the land some 12,000 years ago, the tribes were driven up the valley into the present-day “Fertile Crescent”; the population compression and cultural amalgamation caused the rise of civilization. But that is another fascinating subject.)
The diagram shows Florida today and a few decades hence. It and Louisiana will be submerged almost in their entirety, as will other low-lying areas worldwide, e.g. Richmond and Delta in Greater Vancouver where I live.
The above two maps show the land to be submerged (in red) at +6m/20′ sea-level-rise. And the following map shows the new coastline after all the land glaciers have melted off.
Anthony Marr, Founder and President
Heal Our Planet Earth (HOPE)
Global Anti-Hunting Coalition (GAHC)