To put this into a long-term global context, here's how June has warmed since @NASAGISS data begins in 1880. I've highlighted 1976 and 2018. Lots of variability, but a steep, persistent and, fundamentally, *undeniable* warming. pic.twitter.com/LZdlpMh3eU

— Dr Simon Lee (@SimonLeeWx) July 23, 2018