Sustainability

Today’s sustainability challenges are complex and evolving. To address them we urgently need brave thinking that will drive action for a new economy - one where business, people and planet thrive.

EY teams are committed to building the confidence to act.

There will be no transition to a net-zero, regenerative future without business action and investment.

We meet clients where they are today, to design and help deliver the strategies and solutions that they need to accelerate action, scale innovation and drive meaningful impact. This is how we help clients build the confidence to act now, and to go further, faster.

Explore our insights on how resilient businesses can flourish in harmony with nature and society, thriving through shared prosperity within planetary boundaries.

Anchored in science, harnessing data and tech, delivering impact. Discover our full spectrum of sustainability services at EY Sustainability.

Trending

How can CEOs turn AI productivity gains into lasting value?

Learn why CEOs are investing in AI, talent and portfolio transformation to convert productivity gains into growth and long-term value.

Andrea Guerzoni + 2

What makes today’s climate leaders tomorrow’s business leaders?

The 2025 EY Global Climate Action Barometer highlights how proactive climate action can present a valuable strategic opportunity for companies. Read now.

Dr. Velislava Ivanova + 1

Driving impact to 2030 and beyond

There are just five years to milestone targets for nature, the environment and sustainable development. EY teams joined governments, policymakers, NGOs, citizens and businesses at key global forums to help inform and accelerate public and private sector action in meeting climate, nature and international goals.

21 - 28 Sept. 2025, New York, United States

Progress on climate is at a critical crossroads. As companies continue to grapple with the evolving business landscape—including sustainability disclosure regulation and geopolitical headwinds—we will examine why the business imperative for climate action has never been clearer.

EY teams will join this annual event hosted by the Climate Group and New York City, which will take place in conjunction with the UN General Assembly (UNGA).

We will convene public and private sector stakeholders across a range of issues to discuss the actions we can take to drive change at scale, helping ensure lasting economic, societal and environmental impact for everyone.

Register your interest
10-21 November 2025, Belem, Brazil

COP30 is poised to be a pivotal moment in securing climate progress. Its focus will center on achieving the COP President – Designate’s three key objectives of strengthening multilateralism, connecting climate talks to the reality of business and people, and advancing structural adjustments beyond the Climate Convention to accelerate the implementation of the Paris Agreement.

Additionally, the urgent need for updated Nationally Determined Contributions (NDCs) from all 196 signatories of the UNFCCC will be a center point of the discussion. Climate finance, energy and nature will also be high on the agenda and, as organizations navigate geopolitical challenges and evolving sustainability regulations, COP30 represents a crucial opportunity to turn climate commitments into action.

With the private sector key to implementation, EY teams convene key stakeholders across government, public and private sectors to address the opportunities, challenges and action we must take to shape a future where business, people and planet thrive.

Register your interest
19 – 23 January 2026, Davos, Switzerland

EY leaders will convene at the World Economic Forum (WEF) annual meeting in Davos, Switzerland, joining leaders of government, business and society to address key global and regional challenges. The meeting aims to address pressing political, economic, and societal challenges and foster greater collaboration.

Register your interest

Our latest thinking

Tourism as a catalyst for Japan’s economic growth and the impact of overtourism

Tourism is positioned as one of the main pillars in Japan’s growth strategy. This article evaluates measures taken worldwide to combat overtourism, as well as analyzing the results of a survey which gauges the reaction of local people to high levels of incoming tourism in Japanese tourist destinations. It examines which course of action Japan should take to enhance its tourism industry as an important driving force for economic growth.

Tomotaka Hirabayashi

How sustainability and technology will transform CFOs into Value Architects

Sustainability imperatives and new technology are transforming CFOs from scorekeepers to Value Architects, driving long-term value creation. Read more.

Julie Teigland + 2

How can investors balance short-term demands with long-term value?

Read the EY 2024 Institutional Investor Survey, which highlights a pronounced gap between what investors say and do when considering sustainability.

EY Global

Four factors to guide investment in battery storage

RECAI 63: Demand for battery energy storage is growing amid grid volatility. The EY ranking of investment hotspots highlights opportunities. Learn more.

Arnaud de Giovanni + 1

How citizen scientists are mobilizing to save the planet

Join the citizen science movement and contribute to critical research projects. Learn more.

Gillian Hinde

Top 10 geopolitical developments for 2024

An even more complex geopolitical environment is on the horizon. Learn how businesses need to innovate and adapt their strategies to stay ahead.

Courtney Rickert McCaffrey + 2

How can AI help us accelerate the pace of change the world needs

Realizing AI’s potential for sustainable value creation requires building confidence, taking a holistic approach and augmenting people. Learn more.

Explore more on Sustainability

The team

Keiichi Ushijima

EY Japan Sustainability Leader, EY Climate Change and Sustainability Services, Asia East and Japan Leader

Renowned leader in the field of sustainability. Visionary leadership with a deep respect for diversity, and a regard for personal and professional dignity.

Koichi Oyama

EY Japan Exceptional Client Service Leader; Principal, Climate Change and Sustainability Services (CCaSS), Ernst & Young ShinNihon LLC

On weekdays, a monk in training wholly focused on sustainable society. On weekends, a surfer wholly focused on the next wave.

Colm Devine

EY Global Vice Chair – Sustainability

30+ years advising governments and corporates. Boardroom experience with top global firms. Proud husband, dad of two boys. Golfer. Cyclist. Water-skier.

London, United Kingdom

Gerard Gallagher

EY Global Clients & Industries Sustainability Leader

Transformational leader. Engineer. Geophysicist. Triathlete. Dedicated father of four. Climate advocate.

London, United Kingdom

Dr. Velislava Ivanova

EY Americas Chief Sustainability Officer; EY Global Strategy and Markets Leader, Climate Change and Sustainability Services

Sustainability leader. Trusted business advisor. Global citizen. Nature lover.

Denver, CO, United States

EY Global

Multidisciplinary professional services organization

Oliver Jones

EY Global Leader, Client Insights and Research; EY-Parthenon Geostrategy Leader

Passionate about providing outstanding support to governments and businesses in a fast changing world. Deeply committed to excellence in public policy. Team builder. Mentor. Flexible worker. Husband and father of three.

London, United Kingdom

Gillian Hinde

EY Global Corporate Responsibility Leader

Connector. Collaborator. Wannabe concert pianist. Passionate about personal empowerment and collective action to drive change at scale.

London, United Kingdom

Alexandra Banks

EY Global Nature Lead; Partner, Climate Change and Sustainability Services, Ernst & Young

Determined sustainability problem solver. Believer in sustainable transformation. Passionate advocate for a more just, fair and sustainable world for all. Favorite place – any forest.

Melbourne, Australia

EY Global

Multidisciplinary professional services organization

On the agenda (7)

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Inclusive growth

Inclusive growth

Environment, health and safety issues

Featured: How does EHS investment drive clear commercial value?

Nonfinancial and Integrated Reporting

Featured: How can better sustainability reporting mobilize companies and capital?

Sustainability in Financial Services

Featured: Why should financial institutions be on a mission to reduce emissions?

Climate change and sustainability services

Featured: Four Futures Japan : An immersive experience of science-based climate change scenarios

Government & public sector

Featured: How does Japanet envision regional revitalization through Nagasaki Stadium City?

Energy & Resources

Featured: How bold action can accelerate the world’s multiple energy transitions

east