This year is set to be the hottest on record and 2016 could be even hotter due to the current El Ni'o weather pattern. The UN weather agency, World Meteorological Organization (WMO), today said that data until the end of October showed this year's temperatures running well above any previous 12 month period. The rise is due to a combination of a strong El Nino and human-induced global warming. <br/><br/>WMO Secretary-General Michel Jarraud said global average surface temperatures in 2015 are likely to reach a symbolic and significant milestone of 1 degree Celsius above the pre-industrial era.<br/><br/>Next week world leaders will gather in Paris to discuss plans to curb greenhouse gas emissions and prevent world temperatures rising beyond 2 degree Celsius above pre-industrial levels.