Extreme weather and climate conditions, including Arctic "heatwaves", have continued into 2017, after global temperatures set record last year and the world witnessed exceptionally low sea ice and unabated ocean heat. <br/><br/>The UN weather agency said that while global temperatures hit a remarkable 1.1 degree-Celsius above the pre-industrial period, global sea-level touch record highs and the planet's sea-ice coverage dropped more than four million square kilometres below average in November – an unprecedented anomaly for that month. It opined according to the World Meteorological Organisation's (WMO) on the state of the Global Climate in 2016.<br/><br/>WMO Secretary-General Petteri Taalas said that this increase in global temperature is consistent with other changes occurring in the climate system.Taalas said that with levels of carbon dioxide in the atmosphere consistently breaking new records, the influence of human activities on the climate system has become more and more evident.<br/><br/>Similarly, carbondioxide levels in the atmosphere reached the symbolic benchmark of 400 parts per millions in 2015 – the latest year for which WMO global figures are available – and will not fall below that level for many<br/>generations to come because of the long-lasting nature of carbondioxide.