The retreat is from noted from 1780, 230 Years and is Increasing at a significant Rate the last 50, and even the last 10 years.
And about 1000 feet shorter than even the 2001 line noted in the photo.
Figure it out .. and try and make more substantial replies to Evidence presented.
And say bye, you're on 'ignore', I have no interest, IN no-interest NON-replies as yours.
Real discussion welcome.