TED Talks Daily: "How we’re turning pollution into toys, toothpaste and more" with Xu Hao

Date: October 9, 2025
Speaker: Xu Hao
Main Theme: How new innovations are enabling us to transform carbon pollution—especially captured CO₂—into everyday products like chemicals for toys, toothpaste, plastics, and more, at scale, by uniting advances in science, engineering, and business.

Episode Overview

Xu Hao, who leads Tencent’s climate change initiatives, shares a vibrant and hopeful look at how humanity is now able to turn pollution—specifically carbon dioxide—into valuable, everyday products. Drawing on examples from Chinese startups and initiatives at Tencent, Hao illustrates that the necessary scientific discoveries already exist, but accelerating deployment and scaling solutions require the integrated efforts of scientists, engineers, and business leaders. He presents the journey from lab innovation to gigaton-scale real-world impact and makes a strong case for optimism about achieving net-zero emissions.

Key Discussion Points & Insights

1. Learning from Ethanol: A Metaphor for Climate Tech Scaling

[02:44]

• Ethanol’s history: Used for thousands of years, but large-scale, impactful production took centuries.
• Ethanol as a model for climate solutions: “It is a good example of how science, engineering and business work together to change the world. But it actually took ethanol more than 200 years to do so. We simply couldn't wait that long.”
  —Xu Hao, [03:24]

2. The State of Science: We Have What We Need

[04:38]

• Most scientific breakthroughs for decarbonizing the economy already exist.

  • Solar, wind, energy storage, chemical conversion of CO₂, and even nuclear fusion are here or on the horizon.

• Example: Using CRISPR not just in medicine, but to engineer bacteria that feed on CO₂ to create useful chemicals.

  • Startup Gas Jim applies CRISPR to clostridium bacteria, enabling conversion of CO₂ to butanol (a key chemical).

• “Today, with clostridium, we could potentially make all of them [common chemicals from toys to water bottles] using carbon dioxide instead. It's really great science.”
  —Xu Hao, [05:52]

3. Engineering: Turning Science into Scalable Solutions

[06:18]

• The next bottleneck: transitioning from test-tube successes to industrial scale.

• Key challenges:

  • Building factories “faster and cheaper”
  • Operating them effectively: e.g., choosing between large or multiple smaller reactors, optimizing flow rates, standardizing equipment

• Metaphor: Assembling factories like Lego—balancing creativity and discipline.

• Example: Feynman Dynamics (startup) produces green aviation fuel by combining CO₂ with green hydrogen, needing highly efficient catalysts.

  • Innovation: Adapting pharmaceutical “high-speed mixer” tech to scale up catalyst production for industrial use, akin to “blending fruits just right to get a delicious drink” at scale.

• “So this rather small engineering staff actually enabled Feynman Dynamics to produce their catalyst at industrial scale.”
  —Xu Hao, [09:18]

4. Business: Making Green Alternatives Profitable

[10:00]

• To reach gigaton impact, businesses must make green products as affordable as fossil-based ones—without relying solely on carbon pricing.

• Example:

  • Yuan Chu uses CO₂ and waste calcium to produce high-quality calcium carbonate (used in paper, toothpaste, tires) cheaper than traditional methods.

  • "By using leftover calcium...Yuan Chu can actually produce high quality calcium carbonate cheaper than the conventional method..."
    —Xu Hao, [10:43]

• Example:

  • Moguang developed "radioactive cooling" materials that not only cool glaciers (slowing melting by 80%) but also have everyday applications in phones, building walls, and data centers.
  • Enormous market potential is unlocked by crossing over from environmental pilot projects to regular product integration.

• “The great news is...they already integrated many of their material into hundreds of thousands of mobile phones and sports cameras...”
  —Xu Hao, [12:25]

5. The CarbonX Approach: Collaborate Early and Across Disciplines

[13:11]

• Critical to rapid scaling: Get scientists, engineers, and business people in the same room early.

  • Scientists: “How much energy does it take to capture a ton of CO₂?”
  • Industry: “How does this fit into my factory?”
  • Investors: “How do you scale 100x in 5 years and go public?”

• CarbonX program at Tencent as an example: Convening diverse stakeholders for constant feedback and productive (sometimes heated) debate.

• “This is almost exactly what happened at CarbonX program...this productive dialogue...help speed up the process because it got everybody to thinking about everything at the same time, not waiting 200 years like alcohol now.”
  —Xu Hao, [13:48]

6. Clean Chemical Consortium: Integrated Progress

[14:22]

• Launch of a consortium uniting brands, chemical companies, and startups (like Gas Jim and Yuan Chu) to make as many products as possible from captured CO₂.
• Working across science, engineering, and business—simultaneously.

Memorable Quotes

• “We already have lots of innovation in science, in engineering and business. And the secret to further accelerate the process is also simple: just do them all at once.”
  —Xu Hao, [04:14]

• “So it's not the science holding us up.”
  —Xu Hao, [06:10]

• “We simply couldn't wait that long. To tackle our climate challenge, we urgently need to speed up and scale up low carbon solutions.”
  —Xu Hao, [03:30]

• “Therefore, I'm definitely drunk on the possibility of a better and cleaner future. Cheers everyone. Thank you.”
  —Xu Hao, [15:23]

Key Timestamps

• [02:44] – Introduction: Ethanol as paradigm for scalable change
• [04:38] – The science for decarbonization is ready; CRISPR in climate innovation
• [06:18] – Engineering challenges and the “Lego block” analogy
• [08:51] – Case study: Feynman Dynamics and green aviation fuel
• [10:00] – Business models: Making green products cheaper (Yuan Chu, Moguang)
• [13:11] – CarbonX program: Cross-disciplinary early collaboration
• [14:22] – Clean chemical consortium launch
• [15:23] – Closing optimism and call to action

Episode Tone and Takeaways

Xu Hao’s talk is lively, optimistic, and pragmatic. He uses accessible analogies (“Lego blocks,” “fruit smoothie”) to demystify complex engineering and scientific issues, making the case that the barrier to climate progress isn’t scientific know-how but the speed and scale at which we unite and execute innovations across multiple domains.

Takeaway:
The science and engineering to achieve net-zero are largely here. Speed, scale, and cross-sector collaboration—right now—are the keys to making tomorrow’s world cleaner, better, and possibly, as Xu Hao says, “much better than what AI can generate for us today.”