Gene Drives for Mosquito Elimination

Gene drives for mosquito elimination are the boldest conservation tool on this list, promising to save 600,000 lives annually by spreading sterility through Anopheles populations via CRISPR. Field trials in Burkina Faso have achieved a 99% reduction in target populations within three generations, outperforming #4 in near-term impact. However, ecological models warn that removing a key prey species could collapse food webs, with one simulation predicting a 12% decline in insectivorous bird populations. The technology remains cheaper than the typical alternative—traditional pesticides—but faces unresolved risks for non-target species.