Gavin made the post 1980 cooling in Puerto Casado, disappear.
This is a pattern of data tampering which has occurred all over the world. Since 2011, Gavin and Tom have cooled pre-1963 temperatures, and warmed post-1960 temperatures. The pattern of tampering is consistent and linearly increasing – a smoking gun that it has no validity. Random errors make bell shaped curves, not straight lines.
The purpose of this tampering is to create the appearance of warming in a non-warming world, as we now exceed 18 years of no warming.