Sustainable By Design

Joseph Worswick, VP EMEA and Global Head of Sustainability at OpenX, on why OpenX became the first certified carbon-neutral ad network, how sustainability and commercial performance in programmatic are aligned rather than opposed, and why third-party certification rather than self-reporting is what makes sustainability claims credible. Recorded as VP EMEA and Global Head of Sustainability at OpenX.

Listen to the episode
Season 2, Episode 39

"The internet runs on energy. Every ad served has a carbon footprint. It is time we measured it."

Why the first carbon-neutral ad network proves sustainability and programmatic performance are not in conflict

Joseph Worswick wears two hats at OpenX: VP EMEA and Global Head of Sustainability. OpenX became the first ad network to achieve certified carbon neutrality, a milestone that changed the conversation about environmental responsibility in programmatic.

In this conversation Worswick explains why sustainability in advertising is a commercial discipline as much as an ethical one, how eliminating MFA sites simultaneously reduces waste and improves performance, and why independent third-party validation rather than self-reporting is the only credible approach.

OpenX was the first ad network to become certified carbon neutral. The certified part is what makes it credible.
Sustainability and performance in programmatic are aligned. Eliminating MFA reduces carbon footprint and wasted spend simultaneously.
Every ad served has a carbon footprint. Measuring it is the first step to managing it.
Work with third-party entities that can validate your sustainability claims. Self-reporting does not create credibility.
The industry is at an early stage. AdNet Zero is building the infrastructure the whole industry needs.
01Why OpenX became the first certified carbon-neutral ad network
02How sustainability in programmatic supply chains improves commercial performance
03The role of AdNet Zero in setting credible industry standards
04Eliminating MFA from supply chains: sustainability and performance aligned
05Educating the market on what sustainable advertising actually means in practice
Key Exchanges 05
01 Tell us about your dual role at OpenX.

"I wear two hats. VP of EMEA, managing our buyer development team with brands and agencies. And Global Head of Sustainability covering internal sustainability practices and educating the market on what they could be doing."

Worswick describes a dual role reflecting the belief that sustainability cannot be siloed from commercial operations.

02 Tell me about becoming the first certified carbon-neutral ad network.

"We were the first ad network to become carbon neutral and get that independently certified. Not self-reported. We worked with third-party entities that can assess what we are doing as a company and really validate that."

Certification distinguishes genuine achievement from marketing positioning.

03 How does sustainability in programmatic improve commercial performance?

"Eliminating made-for-advertising sites from the supply chain reduces carbon-intensive page loads and ad calls without delivering genuine audience value. Eliminating them reduces the environmental footprint and improves performance at the same time. Clean supply and better performance are aligned."

The clearest illustration that sustainability and performance are not in conflict.

04 What is your role in AdNet Zero?

"We are one of the founding partners with AdNet Zero. We value that partnership and what they are striving to do for the industry. Without industry-wide standards for measuring advertising-related emissions, sustainability claims cannot be compared or verified."

AdNet Zero is the infrastructure that makes individual commitments meaningful at scale.

05 What can brands and agencies do to improve advertising sustainability?

"Start by measuring. Understand the carbon footprint of your campaigns and supply chain choices. Then work with partners who have independent certification. The industry is at an early stage but the direction is clear."

Pragmatic guidance for organisations at the beginning of the sustainability journey.

28 Minutes
S2 E39 Season & episode
1st Ad network to achieve certified carbon neutrality
180+ DSPs OpenX is connected to across the programmatic ecosystem

"We try to do things the right way. Third-party validation is what makes that credible."

Hear Joseph on
The Business of Marketing
Season 2 Episode 39
More Episodes
Full Transcript SEO & AI indexed
Season 2 E39  ·  Joseph Worswick, VP EMEA and Global Head of Sustainability, OpenX
Lightly edited for readability.

Host Tell us about your role and what OpenX does.

Worswick OpenX is a global omni-channel SSP. I wear two hats: VP of EMEA managing buyer development with brands and agencies, and Global Head of Sustainability. We were the first ad network to become carbon neutral with independent certification. Not self-reported. We also founded AdNet Zero to build industry standards.

Host How does sustainability improve commercial performance?

Worswick Eliminating made-for-advertising sites reduces carbon-intensive ad calls without delivering real audiences. The same action that reduces the environmental footprint also improves performance. Clean supply and better performance are aligned.