“The UN Panel says every country will be affected by global warming”

Reaches for atlas. Unable to locate any countries not on the globe.

Reaches for dictionary. Unable to find relevant alternative definitions of global.

Concludes either:
a) “Global warming” now a set phrase and as such UK anglophones (at least) no longer required to consider what either of its constituent words might actually mean
b) the BBC science unit really is as clueless as everyone says.

Result:
Suspects a bit of both, disappointed in Beeb. As general loather of advertisements, and distributor of scorn upon other news networks, sad to pour scorn upon Auntie. Confused, but aware of Beeb’s ability to turn genuine science into truthy balls, and vv.