On 26 September, after nearly 300 mm of rain fell in around 48 hours, authorities declared all 50 of Bangkok’s districts flood disaster zones. Roads went underwater, transport stalled and residents moved to temporary shelters as drainage built for a different climate struggled to cope.

Bangkok is not alone. In Japan, Typhoon Dujuan led to evacuation orders for more than 1.6 million people in and around Tokyo in September, with around 300 flights cancelled and some rail services suspended. The capital then recorded more than a month of consecutive rainy days, a new record for the city. Earlier in the year, floods swept across southern and central China, and in July Tropical Storm Maysak caused flooding that killed 39 people in Guangxi.

No single weather event can be attributed to climate change alone, but floods like these are the kind of extremes a warming climate makes more frequent and more intense. Not every pressure on the region comes from climate, however. In late September, haze from fires in Kalimantan and southern Sumatra pushed Singapore's air quality into the unhealthy range. Indonesia's National Disaster Management Agency has said that most of the country's forest fires are caused by human activity. Drought linked to El Niño has helped this year's fires spread, and the haze has also reached Malaysia, Brunei and the Philippines. Whatever the cause, the lesson for anyone doing business in the region is the same: these impacts are not something to plan for in 2030 or 2050. They are affecting operations, supply chains and people's lives now.

This week, policymakers, businesses, investors and communities met at Bangkok Climate Action Week. For some delegates, the impacts outside will be hard to separate from the discussions inside. The floods have disrupted communities across the city, complicated travel and daily life, bringing the issue of climate resilience front and centre to Bangkok Climate Action Week. Against that backdrop, the conversations taking place this week have never been more urgent or relevant. 

From future risk to present disruption

For years, climate conversations have centred on forecasts: scenarios for 2030, pathways to 2050 and projections of future warming. These remain essential. But organisations across Asia are now managing current disruption as well as future risk.

That changes how climate action needs to be understood. It is no longer only a matter of corporate responsibility. It is a matter of resilience, competitiveness and risk management. Flooded infrastructure interrupts supply chains. Extreme heat and flooding affect workforce health, safety and productivity. Severe weather disrupts operations, logistics and investment decisions.

It also changes how people engage. Many understand climate change in principle, but fewer have experienced it directly. A flooded commute or weeks of unbroken rain makes the issue harder to treat as distant or abstract, and that can be a powerful driver of action.

Adaptation needs equal attention

Reducing emissions remains the priority. There is no credible path to a stable future without faster decarbonisation. But this year's floods show why adaptation must sit alongside it.

Extreme rainfall has exposed weaknesses that many cities across Asia share: ageing infrastructure, rapid urbanisation, high population density and growing exposure to extreme weather. Even if global warming is limited, some climate impacts are already locked in.

Building resilience means modernising drainage and flood management, expanding urban green space, investing in nature-based solutions and building climate considerations into planning, procurement and investment decisions.

Adaptation is not only a defensive cost. Infrastructure built for extremes reduces disruption. Cities that manage climate risk well attract investment. Businesses that plan for volatility respond faster when conditions change.

A region of exposure – and innovation

Southeast Asia is home to fast growing economies, expanding cities and some of the world’s most important ecosystems. That puts it where development and climate vulnerability meet. Rising temperatures are increasing cooling demand and energy use. Extreme rainfall is testing urban infrastructure. Haze is causing public health concerns. Water security is becoming more important for industry and agriculture. And each of these pressures makes the others worse.

The region is also becoming an important centre of climate innovation, from clean energy and sustainable finance to nature restoration and resilient urban planning. Many of these approaches could serve as models elsewhere. The question now is how quickly they can be scaled, financed and replicated.

Finance and collaboration will set the pace

The world does not lack climate solutions. It lacks finance reaching them at the speed and scale required, and the gap is especially wide in Asia.

Resilient infrastructure, grid modernisation, industrial decarbonisation, nature-based solutions and adaptation all need sustained investment. Public funding alone will not close the gap. Blended finance, transition finance and private capital all have a role, alongside work to create investable projects and reduce real and perceived risk.

Climate impacts also do not stop at national borders. Asia's economies are closely linked through trade and supply chains, so disruption in one place can be felt across the region. The response needs to be just as connected. Partnerships between governments, businesses, financial institutions and communities will be essential. Collaboration is already a defining feature of climate action across Southeast Asia.

From commitments to delivery

Stakeholders now want evidence of progress, not just announcements. Investors want to see how transition plans are being delivered. Customers want transparency. Employees want accountability. Policymakers want measurable outcomes.

Targets still matter because they set direction. But the organisations that lead over the next decade will be those that combine ambition with credible delivery plans, measurable outcomes and transparent reporting.

Questions worth asking now:

• Do we understand how flooding, storms and extreme heat could affect our operations, supply chains and people?
• Are these risks reflected in our planning, procurement and investment decisions?
• Is our transition plan backed by a credible delivery route and transparent reporting?
• Are we working with partners across our value chain and the wider region to respond?
   

From awareness to action

The floods in Bangkok, Tokyo and southern China are not simply events happening alongside this week’s climate discussions. They are the reason those discussions matter.

Climate change is an environmental challenge, but it is also an economic, development and health challenge, and increasingly a question of competitiveness. Many of the solutions are already known. What is needed now is faster progress on resilient infrastructure, clean energy and climate finance, and closer collaboration between governments, businesses and communities.

The momentum is there. The task now is scale.

The Carbon Trust has more than 25 years' experience working with businesses, governments and financial institutions to accelerate the transition to a prosperous, resilient, low carbon future. Please reach out to see how our experts can help.