This aerial photo taken on March 30, 2026 shows agricultural drone operators preparing to spray microbial solution Soil Digest onto crop stubble in a rice paddy in Pathum Thani province. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

This photo taken on March 18, 2026 shows a farmer inspecting a rice field that has recently been treated with microbial solution Soil Digest, in Chiang Rai province. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

In this photo taken on March 10, 2026, a microbial product developed by Thai scientist Wichien Yongmanitchai called Soil Digest, designed to eliminate the need for the burning of rice stubble, is manufactured at his factory in Samut Sakhon. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by ANTHONY WALLACE / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

This photo taken on March 18, 2026 shows farmer Siriporn Taidee picking yellow velvetleaf in her rice field that has previously been treated with microbial solution Soil Digest, in Chiang Rai province. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

TOPSHOT - This photo taken on March 30, 2026 shows agricultural drone operators preparing to spray microbial solution Soil Digest onto crop stubble in a rice paddy in Pathum Thani province. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

This photo taken on March 18, 2026 shows farmers Siriporn and Amnat Taidee, who have previously treated their rice fields with microbial solution Soil Digest, in Chiang Rai province. Rice farmers Siriporn and Amnat Taidee used to burn their paddy fields between plantings -- a common method of clearing crop residue partly blamed for toxic smog that blankets much of Thailand every spring. (Photo by Lillian SUWANRUMPHA / AFP via Getty Images) / To go with 'THAILAND-POLLUTION-ENVIRONMENT-AGRICULTURE-SCIENCE,FOCUS' by Chayanit ITTHIPONGMAETEE and Sally JENSEN

This photograph taken on April 11, 2026 shows Khushwant Singh, author of Maharaja in Denims and co-founder of AI-driven production house Intelliflicks Studios, which is set to release an artificial intelligencegenerated adaptation of the book envisioned as the world's first full-length AI realism film, working at his residence in Chandigarh. Many filmmakers fear the existential threat of artificial intelligence, but in India the race is on to produce the first hit Bollywood feature generated by the technology. One contender is "Maharaja in Denims", based on a popular 2014 novel by Khushwant Singh and set for cinematic release this summer. (Photo by Tauseef MUSTAFA / AFP via Getty Images) / To go with 'India-Entertainment-Bollywood-AI' FOCUS by Seema SINHA

Britain's Prince Harry, Duke of Sussex, talks to young advocates during a visit to Batyr, a mental health engagement programme, at Swinburne University of Technology in Melbourne on April 16, 2026. (Photo by Jonathan Brady / POOL / AFP via Getty Images)