CSO Connect
Trusted by 500k+ CSOs globally by Leaf
● MAY 6, 2025
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Hello!
Welcome to this week's edition of CSO Connect, Leaf media's newsletter.
Here's what's in today's CSO Connect:
📍 How Pinterest is Inspiring a Thriving Planet
🇺🇸 Webinar: The Value of Corporate Climate Action in the Trump Era
🧲 Decarbonizing Steel Production
📝 Case study: Precision, Efficiency & Impact
And of course: everything you need to know about compliance, a toolbox of resources, and our curated picks and events of the year !
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How Pinterest is Inspiring a Thriving Planet
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In this episode of the Leaf Media Global Podcast, Noémie speaks with Mia Ketterling, the Global Sustainability Lead at Pinterest.
Mia shares her journey in building Pinterest’s sustainability program from the ground up, starting with the formation of Pinterest’s Environmental Conservation Organization to driving the company’s carbon footprint assessment and setting science-based targets.
Mia talks about how Pinterest, a visual discovery platform, can uniquely engage users in more mindful consumption and help visualize a sustainable future.
She highlights the power of community, the role of employee-led initiatives like PinPlanet, and how Pinterest is working towards embedding sustainability into its product offerings and corporate structure.
Tune in to hear how Pinterest is navigating its sustainability journey and how the company balances inspiration and mindful consumption, all while engaging its global user base to make more informed, sustainable choices.
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🗓️ Date & Time: May 7, 2025, Wednesday 11AM EST / 5PM CET
🎤 Speaker: Daniel Aronson, Founder of Valutus & Expert on Sustainability ROI
🎤 Moderator: Meggie Mañago, Head of Marketing - North America, Greenly
We’re now fully in the Trump era—and for corporate sustainability leaders, the stakes have never been higher. With increased political skepticism, regulatory rollbacks, and a tough economic climate, proving the business value of climate action is no longer optional—it's mission-critical.
The challenge? ROI is more essential than ever—and more difficult to prove.
In this urgent and practical session, you’ll hear from a leading authority on sustainability ROI as they unpack:
- Why traditional ROI metrics overlook most of the true value of sustainability
- How common ROI narratives fall flat with business decision-makers
- The key blind spots that are weakening your business case
- What you can start doing tomorrow to strengthen your climate strategy's credibility
🎯 This webinar is for:
- Sustainability Leaders
- Finance and Strategy Executives
- Corporate Affairs, Risk, and Policy Teams
- Anyone who needs to make the business case for climate action—and make it stick
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🔩 Decarbonizing Steel Production
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Steel is by far the most used metal globally, widely
used in infrastructures, buildings, transport,
machines and consumer goods. It is the raw material
single handedly carrying the largest climate impact,
causing today 3.6 Gt CO2 emissions in scope 1 and
2 only, that is, 7% or 10% of global energy-related
CO2 emissions.
Steel is also heavily present in the scope 3
emissions of many industrial companies, however,
procuring lower carbon steel is not yet possible
today. Very low
carbon recycled steel is within reach, but limited to
about 50% of future demand. Low carbon primary
steel, on the other hand, will not be available before
significant steps are validated, as technologies are
not yet mature and commercially deployed.
As emerging technologies for decarbonized primary
steel production are expensive and still uncertain,
they will require massive investments, and
infrastructure deployment at country scales for their
connection to the needed power and hydrogen
supplies, or CCS assets. As steel
is also widely traded and exposed to harsh
international competition, policy support and drive
will be crucial for decarbonization, alongside
corporate commitments.
How can steel companies and steel-buyers
plan the reduction of their emissions? And how
could low carbon steel be certified and procured?
Find out here!
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Sustainability Breakthrough: Precision, Efficiency & Impact
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Siemon faced significant hurdles in its emissions management:
Inaccurate Baselines:
Initial emissions calculations from their previous
service provider showed results that were three
times higher than reality, making accurate goal-
setting impossible.
Data Silos:
Manually collecting data from various
departments via spreadsheets resulted in
inefficiencies and limited visibility.
Lack of Granularity:
The inability to distinguish emissions from
supply chain purchases versus office supplies
or services hindered targeted reduction efforts.
Siemon took its sustainability journey to the next level with Greenly—achieving 90% carbon accounting accuracy and reducing costs by 60%. Watch how innovation and data-driven action are shaping a greener future.
« Greenly's onboarding and dedicated climate
expert support was outstanding. Their guidance
throughout the process made a huge difference,
and now, having gone through this for three
years, I feel confident about managing emissions
tracking independently moving forward.
» – Jonathan Ciccio, Continuous Improvement Manager,
Siemon
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Trump Administration Moves to Block State Climate Accountability Efforts
On May 1, the Trump administration filed lawsuits against New York, Vermont, Hawaii, and Michigan in an effort to halt state-level initiatives aimed at holding fossil fuel companies accountable for their role in climate change.
The U.S. Department of Justice challenged New York and Vermont’s new laws requiring oil companies to contribute to climate damage “superfunds,” calling them unconstitutional.
It also preemptively sued Hawaii and Michigan to prevent climate-related lawsuits, arguing these actions interfere with federal energy policy.
Despite the lawsuits, Hawaii proceeded with its case, and Michigan’s attorney general reaffirmed her commitment to pursue accountability.
The legal actions mark a broader attempt by the Trump administration to shield the fossil fuel industry from growing state-led climate responsibility efforts.
UK to Require Solar Panels on Nearly All New Homes by 2027
The UK government plans to mandate that almost all new homes in England be fitted with solar panels by 2027, in a move aimed at reducing household energy bills and accelerating progress toward net zero emissions.
While the requirement is expected to add between £3,300 and £4,000 to construction costs, households could save over £440 annually on energy.
The government has defended the plan, emphasizing its role in cutting emissions, enhancing energy security, and protecting consumers from rising energy costs, while also seeking to avoid reliance on Chinese state-linked solar technology.
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Events you can’t miss!
- Green Tech Festival, Berlin, May 20-22, 2025
- Sustainability LIVE, Chicago, May 28-29, 2025
- Reset Connect, London, June 24-25, 2025
- Climate Week NYC, New-York, September 21-28, 2025
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We're counting on you!
Tell us what you thought about this edition. We always welcome your feedback, suggestions, critics, questions… See you soon !
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