Global temperatures in 12-month span were hottest on record, US institute says

A US research institute says that global temperatures during the 12 months through October were the hottest on record.

Climate Central analyzed the effect of greenhouse gases from coal and natural gas combustion and other human activities on global temperatures. The analysis was based on the daily average temperature data of 175 countries, along with those of cities.

The researchers say that above-average temperatures became three times more likely for residents of countries including Japan, Indonesia, Italy, and Brazil. Seventy-three percent of the world's population were exposed to at least 30 days of above-average temperatures.

The institute said global temperatures during the 12-month span were 1.3 degrees Celsius above pre-industrial levels.

The research team said the effects of the ocean-warming El Nino phenomenon were limited this year, and carbon pollution fueled the global warming.

Andrew Pershing, who took part in the analysis, said, "This is not normal. These are temperatures that we should not be experiencing."

Pershing warned that billions would be exposed to unusual heat next year and that no one is safe from climate change. He stressed the need for greater efforts to reduce carbon emissions.