Are there historical incidents of black snowblack snow?

Are there historical incidents of black snowblack snow?

Yes, several notable historical incidents highlight the impact of black snowblack snow:

- London Smog (1952): Though primarily fog, polluted snow occurred, leading to thousands of deaths and the Clean Air Act.
- Siberian Industrial Zones (1970s-80s): Soviet-era factories caused widespread black snow, prompting environmental reforms.
- Beijing (2013): Severe pollution events resulted in visibly black snow, driving China's war on smog.
- Modern Cases: Recent wildfires in Canada and Australia produced ash-laden snow, emphasizing climate change links.

These events underscore the recurring threat and need for proactive measures.