For the study, researchers looked at the record of hurricanes in the Atlantic. Global data exist, but they said they had less confidence in the information because of tracking methods and signals that might change findings. El Ninos and La Ninas, other patterns that change ocean temperatures year to year in the Pacific, can also trigger more hurricanes in the Atlantic. But those fluctuations failed to account for the steep increase, Bhatia said, which left man-made changes on the planet as the culprit. Without global data as reliable as information from the Atlantic, scientists will continue to struggle, he said.

Source: thestar February 09, 2019 03:56 UTC