Scientists at NASA say two key climate change indicators — global surface temperatures and Arctic sea ice extent have bnroken numerous records through the first half of 2016. Each of the first six months of 2016 set a record as the warmest respective month globally in the modern temperature record, which dates to 1880, according to scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York. The six-month period from January to June was also the planet’s warmest half-year on record, with an average temperature 1.3°C (2.4°F) warmer than the late nineteenth century.