For years, Climate Week NYC has been a stage for bold pledges: net-zero targets, renewable energy commitments and promises to cut emissions. This year, the mood in New York is different.
As the event moved into its second half on Thursday, September 24, business leaders, policymakers and investors were increasingly focused on a harder set of questions: how to deliver on existing commitments, how to finance the transition in a world of high interest rates, and how to prepare for climate impacts that are already arriving.
Climate Week NYC, organised by the non-profit Climate Group and held alongside the United Nations General Assembly, runs from September 20 to 27 and is billed as the world's largest annual climate event. Organisers say it attracts more than 100,000 attendees each year, and this year's programme includes more than 1,500 events across the city, according to Inter Press Service.
A year of compounding crises
The context for this year's gathering is stark. In its framing for the 2026 event, Climate Week NYC notes that the year has seen what it calls the worst energy crisis of our time, driving up the cost of living and placing strain on households, businesses and public finances. Supply chains have been disrupted, pushing up costs and slowing delivery, while climate impacts, from extreme heat to flooding, are exacerbating the pressure.
That energy crisis stems largely from the disruption of shipping through the Strait of Hormuz since late February, which the International Energy Agency has described as the largest supply disruption in the history of the global oil market. Oil prices have remained above $100 a barrel for much of recent weeks.
At the same time, climate extremes have intensified. More than 150 million hectares burned globally in the first four months of 2026, according to figures cited at the event's opening, and a strong El Niño has been confirmed for this year, which scientists expect to drive record temperatures and extreme weather in many regions.
The organisers summed up the challenge: the problem is not setting ambition, but delivering in a world where economic, climate and geopolitical pressures are deeply intertwined.
Adaptation moves to centre stage
One of the most notable shifts this year is the growing emphasis on adaptation — preparing communities, infrastructure and businesses for the impacts of climate change that can no longer be avoided.
According to Business Chief, Climate Group chief executive Helen Clarkson brought together Siemens, California Governor Gavin Newsom and Unilever at Climate Week NYC 2026 to discuss climate adaptation and the business case for growth. One corporate participant quoted by Business Chief described the week as a chance to convene partners and customers around the practical work of building a sustainable, resilient, net-zero economy: modernising infrastructure, accelerating the energy transition and advancing circularity at industrial scale.
Opening the week earlier, Clarkson had struck a combative tone, urging the climate community to be louder rather than making itself "smaller and quiet", according to Inter Press Service.
Several of Thursday's events reflected the adaptation theme. The American Society of Civil Engineers hosted a discussion on how resilience is shaping infrastructure. A Sustainable Cities Summit, organised with the New York City Economic Development Corporation and the New York Climate Exchange, examined how cities can turn climate commitments into results in transport, water and buildings.
Energy and grids take priority
Energy was another dominant theme. Rising electricity demand — driven by electrification, artificial intelligence and data centres — is colliding with grid constraints and supply-chain pressures.
At a "Grids in Transition" event on Thursday, speakers including officials from the US Department of Energy discussed the new operating realities for US grids and how advanced technologies, digitalisation and flexibility can help existing grids deliver more power faster.
The AI connection is increasingly central to climate discussions. Data centres require enormous amounts of electricity, and their growth is reshaping energy planning in many countries. On the same day as Thursday's discussions, Oracle issued a force majeure notice on a 2.45-gigawatt AI data-centre campus in New Mexico, where securing a gas supply for on-site power has become a major obstacle — a reminder of how energy has become a constraint on the AI boom.
Finance: from billions to trillions
Financing remains perhaps the biggest challenge. On Thursday, the New York Climate Exchange, Duke University and Fortescue hosted a high-level dialogue on large-scale transition finance, examining what it would take to move transition finance "from billions to trillions". Speakers were to include Fortescue founder Andrew Forrest and former US Securities and Exchange Commission chair Mary Schapiro.
The financing challenge has become harder this year. Interest rates have risen sharply, with US 10-year Treasury yields reaching their highest level since 2007 this week. Capital-intensive clean energy projects are especially sensitive to borrowing costs, and higher rates can make wind, solar and grid projects more expensive to build.
Climate-focused venture capital has also come under pressure. Fundraising for climate-specialist venture funds fell significantly in 2025, according to PitchBook data, although AI-driven demand for power is steering capital into energy, critical minerals and supply chains.
What it means for India
For India, many of this year's themes are directly relevant. The country is among those most exposed to climate impacts, including extreme heat, floods, cyclones and erratic monsoons, making adaptation a pressing priority. It is also highly exposed to energy shocks, as a major importer of oil and gas, and the disruption in the Gulf has affected fuel prices, the rupee and inflation.
At the same time, India is one of the world's largest markets for renewable energy growth, with ambitious targets for solar, wind and storage. Indian companies and policymakers are increasingly active at global climate forums, and Indian-origin business leaders and innovators are playing prominent roles in climate technology and finance.
The emphasis on financing is especially important for India and other developing economies, which need large amounts of affordable capital to build clean energy infrastructure and adapt to climate impacts. How global finance responds to high interest rates will shape the pace of India's transition.
From pledges to delivery
Climate Week NYC 2026 comes at a moment when the gap between climate ambition and action is under scrutiny. The conversations in New York this week suggest that business and government leaders understand that the era of announcements must give way to an era of delivery.
That means building grids, financing projects, protecting communities and making the case that climate action supports economic growth, energy security and resilience. For businesses, investors and policymakers — in India and around the world — the message from New York is clear: the challenge is no longer deciding what to do, but getting it done.
