For instance, with the large volume of air traffic between large European cities and Africa, in recent years malaria mosquitoes (Anopheles gambiae) have caused many malaria cases around European airports. As global warming leads to longer summers in Europe, public health officials worry that in future the African mosquitoes will be able to breed there and colonize the continent.
比如隨著溫室效應導致歐洲夏季延長，歐洲大城與非洲又往來密切，近年來多個歐洲機場就出現非洲甘比亞瘧蚊病例，有人擔心，未來歐洲可能成為熱帶瘧蚊的「殖民地」。