I agree that this is likely missing data systematically.
However note the difference between carbon offsets vs carbon removals. I don't know what kinds of offsets Google bought but given that they started buying them >15 years ago, they were probably not removals.
However note the difference between carbon offsets vs carbon removals. I don't know what kinds of offsets Google bought but given that they started buying them >15 years ago, they were probably not removals.