The Everyday Choices Powering Mumbai’s Climate Future

Pause for a moment and ask yourself: how did you get to work today and what might that choice have meant for the planet?

When we talk about climate change, the conversation often drifts to big-picture ideas, rising temperatures, emission targets, long-term commitments.

But in my experience working in urban mobility, the impact feels much closer to home. It shows up in the smallest, most routine decisions, how we move through our city every day, often without even thinking about it.

In Mumbai, these everyday decisions play out at an extraordinary scale. Over 8 million train journeys daily, thousands of buses, and a growing metro network keep the city in motion. Public transport is not adoption here, it’s what keeps the city running. And yet, private vehicle usage continues to rise. From what I have seen, this often comes down to uncertainty, those small moments of doubt around timing, reliability, or ease. And over time, that uncertainty adds up to a real environmental cost.

India’s urban transport sector contributes nearly 12 per cent of total CO₂ emissions, with cities like Mumbai at the centre of it. The city’s AQI regularly sits between 120-180, and commuters spend close to an hour each day in traffic. You can feel what that means-more vehicles on the road, more time spent idling, and air quality that steadily worsens.

At the same time, even small shifts can make a noticeable difference. A single Mumbai local train can take around 1,000 cars off the road. A 1–2 per cent shift from private vehicles to public transport during peak hours can remove tens of thousands of vehicles from city streets. Over time, this translates into less congestion, lower emissions, and a city that feels a little less strained, a little easier to breathe in.

But for most people, the decision is not about systems, it’s about experience. People naturally gravitate towards what feels reliable and easy. When public transport feels uncertain or difficult to navigate unclear timings, last-minute platform changes, lack of real-time updates, commuters look for alternatives that give them more control. And when that happens at scale, the impact shows up across the city.

This is the space we’ve been focused on at Yatri. As the Official Mumbai Local Train App, we see our role as making existing infrastructure work better for people. Real-time train tracking, live updates platform information, and integrated metro ticketing are all small pieces of a larger goal, bringing more clarity and confidence into the daily commute. Over time, that clarity changes how people feel about public transport. It starts to become a more natural, dependable choice.

Today, Yatri is helping reduce approximately 30 metric tonnes of CO₂ emissions every day, adding up to nearly 10,950 metric tonnes annually, equivalent to the carbon absorption of close to 5 lakh trees. What stands out is how this impact is built through millions of small, everyday decisions that become easier with better information.

There’s also a ripple effect. When people can plan their journeys better, they spend less time in traffic, saving 10-20 minutes a day on average. Across a city, that adds up to millions of hours saved each year, along with lower fuel consumption and fewer idle emissions. It also makes daily life a little easier.

Sustainability, in this sense, starts to feel less like a trade-off and more like a natural outcome of efficiency.

There’s something important to acknowledge here, Mumbai is already doing a lot right. Millions of people step out every day and choose public transport, contributing to a city that moves efficiently despite its scale. With a bit more support, clearer information, smoother experiences, better integration, that everyday choice can become even easier and more consistent.

That’s where technology can make a meaningful difference. By adding real-time information and reducing uncertainty, it helps people make better decisions without having to think too hard about them.

And when those decisions are repeated across millions of commuters, the impact becomes significant. There’s also an opportunity to make that impact more visible. Imagine being able to see how much carbon you’ve saved over time simply by choosing public transport. Most people aren’t thinking about emissions when they commute, they’re thinking about reaching on time, saving money, avoiding stress. But those everyday choices quietly add up, and making that visible can change how we relate to them. At Yatri, we’re working towards bringing this visibility into the daily commute.

Where this goes next depends on how we move as a city. The effects of our choices show up in the air we breathe, the time we spend, and the way our cities function.

Eventually, the way we move is gradually shaping the cities we live in.

So, how will you choose to get to work tomorrow?

(The writer is a co-founder of Yatri. Views personal.)