On 2019-07-14 8:48 p.m., jmcquown wrote:
> On 7/14/2019 6:10 PM, Dave Smith wrote:

>> It has been melting back for 15,000 year, ever since a glacier
>> deposited a hell of a lot of sand and gravel less than a mile north of
>> my house.
>
> Apropos of not much: allegedly there used to be a land mass connecting
> Russia with Alaska.
>
> https://en.wikipedia.org/wiki/Beringia
>
> This "land bridge" disappeared into the sea some 13,000 years ago after
> the last ice age.Â* The face (and atmosphere) of the earth has always
> been in a state of flux.

I am confused about that. They say that when the glaciers melted the
water rose and submerged the land-bridge. That leave me wondering how
it would not have been under the ice when the ice caps grew so much they
covered most of North America. Since the ice was solid, people could
have come across on an ice bridge.


>
> I do think we should stop treating the planet like one big garbage can.
>
> Jill