REM: ‘Gobsmackingly bananas:' Record temperatures in September shock climate scientists

Global temperatures were so high in September that one climate scientist has described the situation as “absolutely gobsmackingly bananas.”

“The first global temperature data is in for the full month of September. This month was, in my professional opinion as a climate scientist – absolutely gobsmackingly bananas,” Zeke Hausfather of the Berkeley Earth climate data project wrote on X, formerly known as Twitter.

Records were broken in September, the data show. August and July were also the hottest ever, with July the hottest month since pre-industrial times.

Last month beat the records for previous Septembers by 0.5C, which the Guardian said was the largest jump in temperature ever. In fact, September was about 1.8C warmer than pre-industrial levels.

The climate crisis is contributing, as is the natural weather trend El Nino, which heats the Pacific.

This year is expected to be the hottest year ever, and 2024 may be worse, said scientists because El Nino effects are usually the greatest the year after.

This summer has been wildfires in Europe, and extreme heat in Brazil and deadly flooding in Libya – after torrential rain caused two dams to burst – that may have killed thousands.

Other less extreme factors may include an increase in the 11-year solar cycle, reductions in sun-blocking sulphur emissions from shipping and industry, and a volcano erupting in Tonga, according to Hausfather.