The statement is as bullshitty as Carpers most bullshitty statements, full of self-congratulations and reminders that he fought in ‘Nam.
If you want to think that this statement is a statement of support for The Green New Deal, you can do that.
If at some point in the future, Carper decides to slink away from it, and claim that he never supported the Green New Deal, he could do that as well.