A heat wave in Antarctica earlier this month was so extreme that it may be the largest temperature increase above normal ever recorded, according to Robert Rohde, lead scientist at the non-profit Berkeley Earth, who analysed global records.
The temperature at Concordia research station, a European outpost in East Antarctica, measured almost 70 degrees Fahrenheit (38.5 degrees Celsius) hotter than normal on March 18, reaching a high of 11C. (As warm as that is for the region, it is still below freezing.) Though this is not a category weather services track, Rohde said it may be the biggest margin ever.
