Environment & Energy
Related: About this forumWarming Is Rapidly Changing Mosquito Habits; Expect Much Worse From Yellow Fever, Dengue, Zika
Climate change, urbanization, and changes in human populations have driven many beloved species to the brink of extinction. But one of the deadliest animals in the world the mosquito is thriving.
Around 700,000 people die every year from mosquito-borne disease. The biggest culprit is malaria, but other mosquito-borne diseases, like dengue fever, chikungunya, and Zika, have proliferated wildly in recent years, and now make up a substantial share of the global burden of mosquito-borne disease. By some estimates, the number of dengue infections has increased 30-fold in the past 30 years.
The culprit? Climate change, plus urbanization and changes in where human populations are concentrated. And a new study in Nature Microbiology suggests that things will only get worse. Using statistical mapping techniques, they model how two disease-carrying mosquitos, Aedes aegypti and Aedes albopictus, have spread over the last 30 years, and predict how theyll spread over the next 30.
The results are alarming. These species of mosquito which carry infectious diseases including Zika, dengue, chikungunya, and yellow fever, though not malaria are expected to spread throughout most of the United States and Europe, exposing hundreds of millions of people to these diseases. Overall, the study finds, our predicted expansions will see Ae. aegypti invading an estimated 19.96 million km by 2050 (19.9123.45 million depending on the climate and urbanization scenarios), placing an estimated 49.13% (48.2358.10%) of the worlds population at risk of arbovirus transmission.
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https://www.vox.com/future-perfect/2019/3/7/18254825/zika-dengue-yellow-fever-mosquitos-climate-change
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(1,124 posts)Climate change, along with pesticides is a rapidly increasing threat to pollinating insects, like honey-bees. However, other insects are extremely important to plants, which not only serve as a food source, but also convert carbon dioxide into oxygen.