Google is releasing 20M bacteria-infected mosquitoes in Fresno
This is called the sterile insect technique, and it is a well-established practice for getting rid of mosquito populations that could threaten humans. It is very safe, both to humans (male mosquitoes don't bite) and ecologically (species other than mosquitoes aren't affected at all).It sounds like Google is working on improvements to the process. This is important work, because mosquitos are a major cause of disease, especially in Africa, and we haven't been able to fully solve the problem with existing technology.