Researchers think they have found another impact of the lockdowns—less lightning in the spring of 2020. Via InsideScience.
STOCK IMAGE/Getty ImagesIn the spring of 2020, as the coronavirus spread and many places in the world imposed lockdowns, humans used less energy and many spent more time in their homes. As a result, air and water became cleaner, fewer animals were killed by vehicles and the world grew quieter.
Some aerosols in the atmosphere can collect water vapor, forming cloud droplets. Williams said that when there are more aerosols, the water vapor in the cloud is distributed among a greater number of droplets, so the droplets are smaller and less likely to coalesce into larger rain droplets. These smaller droplets stay in the cloud, aiding the formation of small hail called graupel and even smaller ice crystals.
Another method looked at global electromagnetic resonances called Schumann resonances. Williams said their intensities are thought to be proportional to the number of lightning flashes occurring, and these measurements also indicated that there was less lightning during 2020.
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