India forest surveillance capabilities have entered a new technological era with the operational rollout of the NASA-ISRO Synthetic Aperture Radar satellite NISAR. Yet experts warn that despite access to near real time environmental data, the country institutional response to forest degradation fires and carbon loss remains alarmingly slow.
The issue has once again come into focus after recurring forest fires in Odisha Similipal Tiger Reserve earlier this year, even as advanced satellite systems successfully detected thermal anomalies before they were spotted on the ground.
NISAR declared operational in November 2025 after more than a decade of development, is capable of scanning nearly every forested patch in India every 12 days. The satellite can penetrate cloud cover and darkness while generating nearly 80 terabytes of environmental data daily, making it one of the world’s most advanced forest-monitoring systems.
However, experts say the challenge no longer lies in detecting ecological threats but in responding to them fast enough.
Forest fires continue despite faster satellite detection
During February and March 2026, parts of Similipal Tiger Reserve witnessed another round of forest fires. Satellite systems such as ISRO SNPP VIIRS identified thermal hotspots before forest personnel reached the locations, proving the effectiveness of India’s monitoring infrastructure.
Yet on ground responses remained limited to conventional methods including leaf blowers, safety kits and manual containment measures the same strategies used during previous fires in 2021.
Odisha continues to rank among India’s most fire-prone states alongside Uttarakhand and Chhattisgarh, highlighting what experts describe as a persistent disconnect between technological capability and institutional preparedness.
Researchers argue that India forest crisis in 2026 is no longer about lack of visibility. Instead, the real concern is the widening gap between what satellites can observe and how quickly authorities can act.
Advanced satellite studies reveal hidden forest degradation
The debate has intensified following a 2025 study by researchers at the UK’s National Centre for Earth Observation, published in Scientific Reports. The study combined Japanese ALOS-2 radar systems with NASA GEDI lidar technology to create highly detailed biomass maps across Africa.
The findings showed African forests losing nearly 106 million tonnes of above ground biomass annually between 2010 and 2017, equivalent to roughly 200 million tonnes of carbon dioxide emissions every year.
Importantly, researchers found that most of these losses did not come from outright deforestation. Instead, they resulted from gradual degradation caused by selective logging, low-intensity fires and repeated encroachments that conventional “green cover” surveys often fail to detect.
Environmental analysts say India faces a similar blind spot
India’s Forest Survey reports, released every two years, rely heavily on optical satellite imagery that measures vegetation greenness. Critics argue that such methods cannot reliably distinguish dense primary forests from degraded secondary growth or monoculture plantations.
As a result, forests may continue appearing stable in official records while losing substantial biomass and carbon storage internally.
Between 2001 and 2024 India reportedly lost around 2.31 million hectares of tree cover, releasing approximately 1.29 gigatonnes of carbon dioxide equivalent into the atmosphere.
Carbon commitments may suffer without governance reform
Experts warn that weak response systems could also affect India’s climate commitments under its updated Nationally Determined Contributions approved in March 2026.
India has pledged to create an additional carbon sink of 3.5 to 4 billion tonnes of CO₂ equivalent through forests and tree cover by 2035. Achieving this target will require not only sophisticated monitoring systems but also credible measurement, reporting and verification frameworks increasingly demanded in global carbon markets.
Although NISAR now provides highly detailed ecosystem monitoring almost weekly experts say India still lacks a nationwide real time degradation alert mechanism linked directly to enforcement agencies.
There is also concern over the exclusion of local forest communities from emerging carbon governance systems. Gram Sabhas in states such as Odisha, Jharkhand and Chhattisgarh remain largely disconnected from satellite-based monitoring efforts, despite being at the frontline of forest protection and human-wildlife conflict.
Researchers point to Brazil community led REDD+ initiatives as examples where local participation and satellite verification work together to improve conservation outcomes and create credible carbon accounting systems.
Analysts say India now stands at a crucial turning point. The country has acquired world class orbital surveillance capabilities, but unless governance systems evolve at the same pace satellites like NISAR may simply become sophisticated observers of a worsening environmental crisis rather than tools capable of preventing it.