What is causing the increase in mosquito populations?

Does it feel like there are more mosquitoes in Massachusetts than ever? If you thought that 2021 the mosquito apocalypse, you are not wrong.  You might have found yourself swatting and dodging mosquitoes every time you ventured outdoors last year.  And the thing is, you might have even noticed that there were more mosquitoes all the way into fall.  Mosquito populations are expanding and the timeline formerly thought of as mosquito season is also growing longer.