NewsTracker Answers for week of Oct. 27, 2025

Q: Iceland is no longer the only nation in the world without mosquitoes. The two female and one male mosquitoes discovered on the remote North Atlantic islands this month likely arrived by plane or boat. Where is Iceland between Greenland and the British Isles?

Circle the area on this map


Q: Invading mosquitoes may not survive the winter, but they could be the start of a new local population during a time of rapid warming and growing global travel. The trio of pests was found near Iceland’s capital, largest city, and international gateway to the country ...

A. Longyearbyen

B. Nuuk

C. Reykjavik

D. Torshavn


C. Reykjavik is the northernmost capital of a sovereign state, and its metro area is home to about 250,000 of Iceland’s 391,810 people. Nuuk is the capital of nearby Greenland, and Torshavn is the capital of the Faroe Islands – both Danish territories. Longyearbyen is the administrative center of Norway’s Svalbard Islands.


Q: These islands are in the far north Atlantic and Arctic oceans, where it is warming faster than the rest of the world. About how much more quickly is Arctic warming than the increase in the average global temperature?

A. 2 times faster

B. 4 times faster

C. 6 times faster

D. 8 times faster


B. A 2022 study found that the Arctic has warmed “nearly four times faster” than the global average. Arctic warming in Svalbard triggered concerns about the Global Seed Vault, an underground cold storage facility to protect the world's crop diversity. Warming and heavy rain caused increased water intrusion into the vault tunnel in 2016.


Q: Iceland recorded a record high temperature of nearly 80 degrees Fahrenheit this year. Warmer global temperatures are allowing the spread of more disease-carrying mosquito species.. What mosquito-borne disease has spread within the United States?

A. Dengue fever

B. Malaria

C. West Nile Virus

D. All of the above


D. West Nile Virus is the most common mosquito-transmitted virus in the United States, with cases reported in 49 states. Puerto Rico had 2,488 of the 3,216 U.S. dengue fever cases reported so far this year. Transmission of malaria inside the United States was eliminated in 1951, but a few cases spread locally in southern states in 2023.


Q: Like North America, Europe is concerned about the spread of mosquito-borne disease. Iceland is considered part of which continent?

A. Europe

B. North America


A. Iceland is on the Mid-Atlantic Ridge, which separates the North American tectonic plate from the Eurasian plate. Iceland is considered part of Europe largely because of historical, linguistic, and cultural ties to Denmark and Norway. Iceland’s location on spreading tectonic plates makes it one of the most volcanically active spots in the world.