What does it really mean to be net zero? In a world overflowing with climate claims, standards are becoming the new currency of trust, as they set technical definitions and create common ground.

This week, we’re exploring something that could reshape how the world defines and delivers climate ambition: the new ISO net zero guidelines.

Our guest is Noelia Garcia Nebra, head of sustainability at the International Organization for Standardization (ISO). ISO’s purpose is to bring credibility to achieve net zero, a race that’s been plagued by confusion and greenwashing.

The organisation has partnered with the Greenhouse Gas Protocol to align accounting rules, improve comparability, and restore confidence in what “net zero” really means.

The new guidelines are designed to make ambition measurable and accountability possible. They promise to bridge the gap between lofty corporate pledges and the proof needed to back them up. By creating clearer expectations, they also help direct capital toward credible action, reducing the risk of greenwashing and reinforcing confidence in global climate goals.

According to Noelia, we all have to start speaking the same language. Without shared definitions, there can be no shared trust, and without trust, there can be no real transition.

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The Conference of the Parties, or COP30 this year in Brazil, can seem remote – bureaucratic, elite, hard to connect with. But it’s also one of the few spaces where solidarity can still take shape.

The same is true of philanthropy: when it’s built on listening and trust, not hierarchy or control, it becomes a bridge between people and resources rather than another layer of power.

This week's guest is Raysa França, climate justice educator and philanthropy advisory manager at Impatience Earth. We talk about philanthropy, power, and persistence – and why, even when global climate talks feel distant or political, moments like COP30 still matter.

We explore how gatherings like COP can foster connection and shared purpose, not just negotiation, and what decentralising power looks like in real terms, from who gets funded to who gets heard.

Ultimately, showing up – in partnerships, at summits, in uncomfortable conversations – is an act of resilience. Hope isn’t naïve: it’s a practice of persistence.

Raysa offers a powerful reminder that the very act of coming together – across borders, sectors, and disagreements – might be one of the few things still holding our shared future together.

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Working in sustainability means getting the story right.

We may have crunched the numbers and estimated the risks of biodiversity loss in a certain area, or the opportunities arising from decarbonising a certain sector. But if we don’t communicate effectively with our stakeholders, there is a real risk that all of this effort will go to waste.

This is particularly true when interacting with stakeholders requires navigating cultural differences. So how can storytelling help enable a just transition?

In this week’s episode, Giulia interviews Somia Sadiq, a peacebuilder, environmental planner, and all-around communications expert. She is the founder and CEO of Narratives and Kahanee, and very recently published her first novel, Gajarah.

Somia explains how to create spaces for difficult discussions around climate change, how to champion cultural nuances in business settings, and what approach to take when interacting with people who have different opinions.

At a time when most of us are stuck in echo chambers, we cannot afford to shy away from establishing a dialogue: we must harness the power of words to find equitable solutions.

Hate misinformation? Us too. If you can spare some time, help us in our next endeavour and take our Climate Misinformation Survey!

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