- Published on September 30, 2025
- In Deep Tech
This Ahmedabad Startup is Building a Thermometer for Earth
Rising heat is stressing water resources, and thermal data can identify it a month before it becomes visible to the human eye.
Image by Nalini Nirad
- By Sanjana Gupta
Heat is now one of the most closely watched markers of climate change. The World Meteorological Organisation notes that the past 10 years have been the warmest on record, with 2023 alone bringing unprecedented heatwaves across Asia, Europe, and North America.
July 2025 was the third-warmest July globally (after July 2023 and 2024), according to the EU’s Copernicus Climate Change Service. The average sea surface temperature was also the third highest on record.
Rising temperatures threaten crop yields, accelerate water stress, and intensify urban heat islands, yet monitoring systems remain patchy. The United Nations Secretary-General’s Early Warnings for All (EW4ALL) initiative aims to ensure every person on Earth is protected by early warning systems by 2027.
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Sanjana Gupta
An information designer by training, Sanjana likes to delve into deep tech and enjoys learning about quantum, space, robotics and chips that build up our world. Outside of work, she likes to spend her time with books, especially those that explore the absurd.
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