Letter: More songbirds or more browntail moths?

TIMES RECORD • June 6, 2023

In January, a 12-year study in the journal Science demonstrated that light pollution is increasing five times faster than previous estimates, doubling every eight years. Bath plans to install 2700K (degrees Kelvin) streetlights. But with improved technology and efficiency, warmer 2200K LEDs cut harmful blue light emissions by 50% compared to 2700K, reducing environmental impact on birds and other wildlife. This of course is a misunderstanding that all lighting engineers are familiar with: Safe lighting levels are based on lumens, not the light color. ~ Russell Clark, Bath