Parts of Europe, the Middle East, North Africa and the United States of America have seen extremely high May and June temperatures, with a number of records broken. The heatwaves are unusually early and are occurring as the Earth experiences another exceptionally warm year.

Average global surface temperatures over land and sea were the second highest on record for the first five months of 2017, according to analyses by NOAA, NASA-Goddard Institute for Space Studies and the European Centre for Medium Range Weather Forecasting Copernicus Climate Change Service.

Read the full World Meteorological Organization report here.