A cyclist pedals across a crossing amidst early morning dense fog in New Delhi, India, Monday, Dec. 30, 2019. Delhi, which is witnessing the longest spell of cold weather in the last 22 years, woke up to a blanket of dense fog engulfing most parts of the national capital on Monday morning, disrupting rail, road and air traffic adversely. (AP Photo/Manish Swarup), APTOPIX