9 points
In this case, one could assume tumbling is related to the temperature and not the situation, leading to an observation that the situation is improving. It is a poor choice of words for this headline.
0 points
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No, as I realized and clarified in a comment of mine down this thread a bit,
Climate records tumble,
Here, “climate records” is the object of the verb “tumble”. That is, the thing that is “tumbling” are “climate records”.
I agree it’s a poor choice of wording for a headline but it is clear what is doing the tumbling on subsequent reads.