Massive Jellyfish Swarms

SUMMERY
Huge flocks of jellyfish hundreds of miles in area are increasing worldwide over the last twenty years. The hardest hit areas include: Hawii, the Gulf of Mexico, the Bering Sea, our East Coast, the Mediterranean Sea, the Black Sea and other European seas, Australia, the Sea of Japan, the North Sea and Nambia. The jellys are causing injuries and even deaths for swimmers. They're causing problems and costing perhaps billions to fisheries, fish farms, desalination plants, marine mines, ships, and nuclear power plants. The possible reasons for the sudden influx of the invertabrates include: poulation, climate change, overfishing, introduction of non-native organisms, and artificial structures like oil and gas rigs.

OPINION
I understand that the article is information that's been collected over a long period of time, and it isn't exactly "current", but the information still applies. And, it's very relivent to me. Just days before school began, I was stung by a jelly fish on Oak Island. I rootedly believe that this article is an obvious fact. Neither of my parents have ever been stung by a jellyfish throughout their lives. I also believe that the cause for the influx is climate change. Warmer waters means that creatures like jellyfish that thrive in warmer waters will have a population explosion. I worry what the swarm will mean for the marine food web. The issue is bound to be our fault.
http://www.macroevolution.net/jellyfish-swarms.html