While Australia suffered through its hottest January on record, around the world things aren’t much better.

The past four years - 2015, 2016, 2017 and 2018 - have been confirmed as the warmest years on record around the world, according to new research released by the UN's World Meteorological Organisation (WMO) on Thursday.

Average global surface temperatures were 1.0 degree Celsius above pre-industrial times in 2018, the report said, based on data from US, British, Japanese and European weather agencies.