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I've always wondered if someone on such a planet is looking at us and wondering if there is intelligent life here.

Not sure if we'd be sun-transiting to them, but perhaps they can get a highly sensitive atmospheric spectral line chart.

Then they can start debating whether the CO2 level going from 0.03% to 0.04% indicates we're entering another extinction period. If they're within a few light-decades then the next century will be a very exciting time for their astro-xeno-biologists. Lucky them!

We would not be sun-transiting to them, at least at the moment: the current declination of Ross 128 happens to be less than 1 degree [1], meaning it's near the celestial equator rather than near the ecliptic. Since the ecliptic plane is at 23.5 degrees to the equator, they would see the Sol-Earth system tilted at that angle: much too large to be sun-transiting.

[1] https://en.wikipedia.org/wiki/Ross_128

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