Blog

Your window into the world of deep climate science. A space where we distill complex ideas into accessible explainers, share notes from the field, offer in-depth explorations of our research, and keep you informed on all things climate from the Global South.

Expect bold ideas, hopeful momentum, and stories rooted in rock, soil, and resolve.

Featured topics:

Latest:

Published
4 min

Warren Buffett and climate action — a reluctant participant

Warren Buffett didn’t plan to back climate action, the markets did it for him Warren Buffett has long been seen as the epitome of pragmatic capitalism – measured, disciplined, and unimpressed by fads and ideologies. So when the global investment community leaned into climate action and ESG (Environment, Social, Governance) in the past decade, Buffett stood apart. Not defiantly, but dispassionately.  In his 60 annual letters to shareholders since 1965, there are only 5 mentions of climate chang

Shrey Agarwal

Co-founder & CEO

India’s leading carbon removal summit is back!

6th- 8th October 2025

Count me in!
Published
3 min

What Are Scope 1, 2, and 3 Emissions — And Why Should You Care? (ELI5)

The Hidden Footprints of Corporate Pollution — And Why Scope 3 Changes Everything All CO₂ emissions from a company are categorized into Scope 1, 2, and 3. This gives us a framework to understand how to reduce emissions across all operations. Reducing these emissions is our only chance to limit the dire effects of global warming — and keep global temperature rise under 1.5°C. Let’s say you run a company that sells cookies. You bake them in your factory, wrap them in plastic, power your ovens wi

Adithya Venkatesan

Climate Studio Lead

Published
2 min

What we know about the impending heatwave in India

India braces for its hottest summer yet — heatwaves surge, risks rise. It’s going to be a hot summer. Hotter than anything we’ve experienced before. The Indian Meteorological Department (IMD) forecast: “Above-normal maximum temperatures are likely in most parts of the country.” This is a cause for alarm. Buried in the Numbers Last year, official reports from the Health Ministry indicated that between March 1 and June 18, there were 110 deaths attributed to heatstroke. However, other sources

Adithya Venkatesan

Climate Studio Lead

Published
3 min

In Defense of Starts: Why Carbon Removal Needs Optimism, Not Cynicism

Carbon Removal Is Where EV Tech Was 20 Years Ago — And That’s Exactly Why We Must Act Now. It’s easy to be cynical about carbon dioxide removal today. The numbers seem too small. The science & tech feels too new. The impact isn’t yet visible at planetary scale. (image source: From a bloomberg article) But here’s the thing: Everything transformative once looked implausible and minuscule. Learning from EV tech In the early 2000s, electric vehicles were a punchline. In 2015, the Organizat

Shrey Agarwal

Co-founder & CEO

Published
3 min

The journey of Basalt - from crushers to carbon removal

How a humble rock begins its journey to fight climate change — one dusty road at a time. When we think of climate action, we often picture solar panels, wind turbines, or electric cars. But at Alt Carbon, we work with something more ancient. More grounded. A rock. Basalt. Mars has a lot of basalt too Many Martian rocks are volcanic and basaltic, giving insight into the planet’s fiery past. A dark volcanic stone — often overlooked — yet quietly powerful. When crushed and spread

Mayank Prasad

COO's Office

Published
3 min

What Is Enhanced Rock Weathering? (ELI5)

Turning Dust into Climate Action — How Crushed Rocks Can Cool the Planet. We Have to Fight Climate Change. Different companies are adopting a range of strategies to fight carbon emissions — the single biggest cause of a hotter, warmer planet. One of those pathways is enhanced rock weathering. Imagine if rock dust could pull carbon dioxide (CO₂) from the atmosphere and help cool the planet. This is Enhanced Rock Weathering (ERW). But before we understand ERW, let’s talk about natural rock

Adithya Venkatesan

Climate Studio Lead