Wavelength-specific urban nighttime light modulates expressed sentiment across China

Key Points

• Expressed sentiment varies according to specific wavelengths of urban nighttime light, demonstrating noticeable emotional responses.
• Predominantly, variations were noted in urban areas across China, highlighting the relationship between light and mood.
• The analysis utilized data from various cities to assess sentiment changes correlated with different light wavelengths, emphasizing environmental impacts.
• These findings support the idea that urban lighting can significantly affect public sentiment, calling for more studies on environmental influences.