WorldMediterranean Sea warming from climate change is fueling the spread of invasive species like lionfish and pufferfish, threatening native biodiversity, fisheries, and coastal livelihoodsROME: The Mediterranean of our ancestors is no more. Scientists say climate change, caused mainly by burning oil, coal and gas, is making the Mediterranean Sea hotter, bringing hundreds of new and invasive fish species that decimate indigenous populations. Cyprus, due to its proximity to the Suez Canal, was first to feel the impact of these invasive fish. Azzuro said about 1,000 invasive species have been identified in the Mediterranean, with 800 of them firmly established. One way is to commercialize invasive species that are edible.