Should you trust a report on science?

This honestly isn't a bad heuristic in a lot of highly politicized areas:

A sign that you might want to trust a source:

If they say, "We're not sure." Or, "The evidence suggests X. But the quality of that evidence isn't too strong, so better research is needed."

A sign that you should be wary of a source:

If they say, "The science is settled."