Monday, September 12, 2016

The violence of typhoons that devastate Asian coastal regions is being magnified by rising sea surface temperatures caused by greenhouse gas emissions.

Young boys scavenging for timber to build shelter after Typhoon Haiyan devastated coastal areas of the Philippines in 2013. (Image Credit:  R Rocamora/UNHCR) Click to Enlarge.
The typhoons that have slammed into the coasts of east and southeast Asia have become more violent, increasing in intensity by between 12% and 15% over the last four decades, according to a new study.

And the proportion of storms that meet the classification of category 4, with winds at 200 kilometers (124 miles) per hour, and category 5, with gusts of more than 250 kph (155 mph), has at least doubled and may have tripled.
The cause of the intensity is an overall warming of ocean surface waters in the northwest Pacific.

And the researchers say:  “The projected ocean surface warming pattern under increasing greenhouse gas forcing suggests that typhoons striking eastern mainland China, Taiwan, Korea, and Japan will intensify further.

Damage by typhoons
“Given disproportionate damages by intense typhoons, this represents a heightened threat to people and properties in the region.”

The study was published in Nature Geoscience on the same day as the International Union for the Conservation of Nature (IUCN) study of the state of the oceans.

Read more at Ocean Warming Intensifies Power of Typhoons

No comments:

Post a Comment