A rather short article that provides very little evidence or context to assess the merits of the Danish scientist's viewpoint. Not very useful to help the public make informed decisions on this charged topic.

This story gives a short summary of an academic paper which explains why a single average temperature value is not a useful metric for measuring global warming. Includes "warmer during the recent 50 years" context which is not in the paper, and no source given. Likewise "defined only for a homogeneous system" does not come from the paper. What the paper does say is similar, that "an average of temperature data sampled from a non-equilibrium field is not a temperature". Single viewpoint.

The headline of this very brief story reporting on a scientific journal article muddies the rhetorical waters. The article is about a question of instrumentation -- of how to measure global warming in a meaningful way, and so to answer the question "how bad is it?" The article asserts that the measurement technique has been politicized, which is most likely true. However, the UPI headline mis-locates the article as addressing the question "is there a problem?" Furthermore, it doesn't offer any independent analysis. Sloppy science reporting.