How the Warmists and No Warmists can both be correct.

So NASA tells us that 2014 was the warmest year in 134 years, but no-one is denying that the planet hasn't warmed for some 18 years too so how can both statements be correct?

Well here is how both can be true.

But read what sort of a blip or spike are they talking about?

And here scientists challenge the numbers.