Yesterday the internet was full of photos of the ominous red sky over San Francisco at day break. I snapped a few but couldn't improve on the ones I'd seen.
Around mid-day, I ventured downtown and saw all the street lights on. This is what Market Street usually looks like around 6:00 pm in winter, not in the middle of a summer day.
The red sky at dawn and darkness at noon were caused by high-altitude layers of smoke from California's wildfires. No fires are near the city, but their smoke covers the state. Throughout the day, ash and soot rained down on everything.
Of the ten largest wildfires in California history, seven have occurred in the past five years. Why? 1. People living further away from cities and demanding, 2. suppression of small wildfires, which clean up "fuel" that accumulates in forests. 3. Climate change making the air warmer and therefore drier.