We are a Planetary Intelligence startup, undertaking gigaton scale CO₂ Removal | HQ: @iiscbangalore | Operations: Darjeeling
Bangalore, India
Joined January 2024
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Alt Carbon retweeted
In 2004, India’s official count said the Sariska Tiger Reserve in Rajasthan had 16-18 tigers. But, visitors had not seen one in months.
The truth: Sariska’s tigers had been poached to extinction.
What follows is the stunning story of how a supposedly, “poor country” mobilised to save the tiger. From rebuilding its counting methods, camera traps, statistics, satellites and an app.
This is the story of how a country that has learnt to lived with tigers for millennia, learnt again how to protect it.
Issue 7: How India Actually Saved the Tiger, written by @sonakshi_geog, edited by @fahadmh , tracked, counted & built by @AltCarbonIndia
altermag.com/articles/how-in…
Alt Carbon retweeted
I was in UAE this week to attend the Raisina Middle East, hosted by @orfonline.
Some thoughts & request for stories for @AlterMagIndia.
Alt Carbon retweeted
It was a pleasure to present the work that @AltCarbonIndia is doing, applying AI to the Earth Sciences.
The next frontier for AI is intelligence capable of understanding the natural systems of our planet. India’s biggest Sovereign AI opportunity will be to map out the physical world. This will require cutting edge labs, translational research and collaboration between engineers and scientists.
Looking forward to working closely with @DrSJaishankar @orfonline to build India’s deeptech ecosystem, across our labs, scientific institutions, and manufacturing floors.
🔬 🛰️ 🇮🇳
Alt Carbon retweeted
The highlight for the last month has been that @AltCarbonIndia’s Darjeeling Revival Project has now received an independent A rating from @BeZeroCarbon
Also featuring @orbuch’s NGI essay, @ashleevance in darjeeling, and new pieces from @AlterMagIndia
🏠 Alt Open House is back.
It’s been a while since we’ve opened up our office at IISc to folks interested in what we’re building.
Come by, on 7th Oct, for a tour of our labs, the equipment we use, & a closer look at how we remove CO₂.
luma.com/z8io6t7v
Alt Carbon retweeted
It was a pleasure to host Hon’ble Minister Shri @ArjunsinghWB at @AltCarbonIndia’s Darjeeling-Climate Action Labs today.
He spent time with our scientists, engineers, and farm partners to understand the work we’re doing on the intersection of agriculture, climate action, and earth sciences.
What was striking was that he kept emphasising the need to focus on the farming communities in Bengal and undertaking cutting edge R&D to ensure we have agricultural abundance.
Alt Carbon retweeted
Today, the D-CAL (Darjeeling Climate Action Lab) team at @AltCarbonIndia opened its doors to children from the local community for a day of experiments and discovery.
There were interactive demos, a few surprises and lots of “how does that work?” moments, and hopefully many future scientists & explorers in the making.
Because sometimes, all it takes is one cool experiment to spark a lifelong love for science.
Super proud of the team for creating that spark, and for finding meaningful ways to give back to the community we’re so fortunate to build alongside.
Alt Carbon retweeted
I'm hosting a fun quiz on Sunday at @_lagrangepoint to celebrate the latest @AlterMagIndia issue.
Teams of 3
Alter Merch & @DorjeTeas for grabs
Register now!
In 2004, India and Pakistan played a cricket series billed as the ‘Friendship Series’. Before the match began, the captains of both teams appeared together with a plea.
It had nothing to do with cricket. What was it? (Answer in the end)
We’re hosting a general knowledge quiz, moderated by @sparshselim , at @_lagrangepoint . Thank you, @itsarnavb .
Alter Issue #6 launch date and time:
📅 6th September (Sunday)
🕐 2:00 PM
📍 Lagrange Point, Indiranagar
RSVP: luma.com/3h3swr00
Answer: ‘Bowl’ out polio.
Alt Carbon retweeted
This Wednesday, we unpack a love letter older the dinosaurs to gauge what the ocean's romance look like under a microscope.
We're bringing equipment from our labs, & the shells of a single-celled organism — Foraminifera, to @sanctuaryparc.
Register: luma.com/gvrt31pm
We cooked up something new to understand the alchemy that’s biochar.
India produces around 750 million tonnes of agricultural waste every year. A lot of it ends up being burnt. One of the biggest reasons for poor AQIs is open stubble burning.
Biochar is one of the best ways to cut that down. It keeps the carbon out of the air and restores soil health.
But what is biochar?
How does it work?
Why do we need this in an agrarian India?
We built an interactive microsite that explains every dot of the issue at hand: the problem, the science, and our work.
The science of the Bengal Renaissance Project; a study in the alchemy of ash. All yours now.
altcarbon.com/eli5/bengal-re…
Alt Carbon retweeted
Great to see Carbon Removal going mainstream.
Thanks @TOIIndiaNews for featuring the @AltCarbonIndia’s experiment with Enhanced Rock Weathering, ongoing in Darjeeling!
Alt Carbon retweeted
A humble reminder that technological progress diffuses what was once considered luxury.
After all, what once required an empire and emperors to summon from Himalayan ice now fits in your freezer.
Oh, also, really cool sticker 😁
Alt Carbon retweeted
An ice cream is a surprisingly elaborate piece of chemistry and physics. Contrary to its name, it isn't just frozen cream.
It's four separate things held together at once:
• ice crystals
• a sugar syrup that never freezes
• air folded in by churning, and
• a network of fat holding it all
Disturb any one of them and the whole thing collapses.
In India, that collapse happens fast.
So Indian manufacturers have started rebuilding ice cream from the inside out. Some are leaning on denser, mithai-style formulations for stability. Others are freezing the product only when it's served. A few are raising protein and prebiotic fibre levels, trading sugar and fat for structure, and a healthier ice cream in the bargain.
This is the story that questions what an ice cream really is, and the strange science being used to combat a ₹10 vanilla cup that gives up by the sixth spoonful.
Issue 5: Designing a Summer Ice Cream for India, written by @chandhana, edited by @fahadmh, scooped, churned & built by @AltCarbonIndia
altermag.com/articles/design…
Alt Carbon retweeted
Hold that Artificial Intelligence pie, @AltCarbonIndia's merch is coming soon...
Touch grass. Read rocks 😉
Alt Carbon retweeted
What if fighting climate change could begin with a cup of tea?
Using a special process called Enhanced Rock Weathering (ERW) across Darjeeling's tea estates, Bengaluru-based Alt Carbon is pulling carbon dioxide (CO₂) out of the atmosphere and locking it away so it can't contribute to global warming
Here's how ERW works: finely crushed basalt rock is spread across tea estates. When rain falls, the basalt reacts with CO₂ dissolved in the water, converting it into stable bicarbonate ions that stay locked underground for over 10,000 years
But the impact doesn't stop there. The basalt doesn't just capture carbon—it also rejuvenates degraded soil, balances pH, and boosts crop yields.
Here's why this matters for India:
🌍 India's carbon emissions are projected to reach ~3.25 billion tonnes in 2026. To hit net-zero by 2070, we need every tool in the box, including carbon removal at scale.
🌱 ERW is also a lifeline for farmers. Studies across Indian farms show nearly 25% yield increases. In fact, Alt Carbon is already working with 35,000+ farmers in Bengal.
It has already issued nearly 10,000 verified credits to global giants like Microsoft and Google, making it the world's largest ERW company!
#ClimateChange #CarbonRemoval #SustainableAgriculture #EnvironmentalInnovation #NetZeroIndia
[Climate Change Solutions, Enhanced Rock Weathering, Carbon Dioxide Removal, Sustainable Tea Farming, Net Zero India 2070]
Alt Carbon retweeted
Bangalore friends - please tell us what your favourite ice cream brand here is, and if you know someone working there, please DM!
@AlterMagIndia #5 is going to be a fun one, watch this space 👀
HELP: Looking for a venue to host @AlterMagIndia Issue #5.
Ideally want to do it in an ice cream parlour, if anyone has connects, please do DM!
Promise to add you to our guest list and give some of our upcoming merch ✌️
