The 2026 Crafoord Prize in Geosciences was awarded to Veerabhadran “Ram” Ramanathan for pioneering research on how aerosols and other climate pollutants affect Earth’s energy balance and the climate system.

Awarded by the Royal Swedish Academy of Sciences together with the Crafoord Foundation, the prize is one of the world’s most prestigious scientific honors outside the Nobel Prize system.

But the most important conversation during Crafoord Prize week was not only about what Ramanathan had discovered. It was about what happens next.

On May 22, the morning after the award ceremony, a group of world-leading scientists from several fields, policymakers, physicians, educators and even astronauts gathered at the Royal Swedish Academy of Sciences for an informal roundtable convened by Ramanathan and Professor Örjan Gustafsson. The discussion focused on a practical question: how humanity can protect people and ecosystems from accelerating climate and weather extremes over the next 25 years.

I had been invited as a science communicator, alongside the experts. That role gave me a particular lens on the conversation. One of the clearest lessons from the room was that climate action is not only a scientific challenge. It is also a challenge of communication, trust, finance and implementation.

The discussion quickly moved beyond traditional climate rhetoric.

Ramanathan asked participants to imagine humanity living on three different planets.

The first planet is home to the wealthiest one billion people. Most have access to insurance, cooling, hospitals, infrastructure, savings and some ability to relocate when disasters strike.

The second planet is home to the middle four billion.

The third planet is home to the poorest three billion people on Earth. They contributed little to the climate crisis, yet are already suffering first and hardest from extreme heat, floods, storms, droughts, hunger, disease and displacement.

That framing changed the room. Climate change stopped being an abstract environmental issue and became what it increasingly is: a profoundly unequal human emergency.

Ramanathan emphasized that climate action has entered its “how” phase.

The debate is no longer primarily about whether climate change is real, whether fossil fuels warm the planet, or whether the transition is necessary. Science has answered those questions repeatedly.

The real challenge now is implementation:

• How do we scale solutions fast enough?
• How do we finance resilience?
• How do we protect health systems and vulnerable communities?
• How do developing economies gain access to abundant clean energy without repeating the fossil-fuel pathway that built the wealth of industrialized nations?

And how do we do this within the next few decades, not by the end of the century?

Climate Risk Is Not Experienced Equally

Climate discussions often focus on long-term timelines such as 2050 or 2100. Those targets matter. But Ramanathan argued that the next ten to thirty years may be even more critical for billions of vulnerable people already living near physical and economic limits.

A two-degree world is not experienced equally.

Wealthier societies may still be able to adapt for some time through infrastructure upgrades, cooling systems, stronger buildings, insurance and capital mobility.

The poorest communities cannot simply buy protection from deadly heat, crop failure, toxic air pollution or rising seas.

That is why climate resilience can no longer be treated as a secondary issue addressed after emissions reductions succeed. Mitigation and adaptation must now happen simultaneously.

Without rapid emissions cuts, adaptation eventually becomes impossible. But without adaptation, millions of people may not survive long enough to benefit from long-term climate stabilization.

Clean Energy Is Also A Development Strategy

One of the strongest interventions came from Dabo Guan of Tsinghua University in China, whose work focuses on emissions and development pathways in emerging economies.

His point was simple but important: the energy transition cannot be understood only through the lens of China, Europe and the United States.

Many developing nations still have relatively low emissions per country, but together represent a major part of future energy demand growth. These countries need electricity, industrialization, cooling, transportation and economic development.

The defining question is whether they will be locked into another century of fossil-fuel dependence or leapfrog directly into modern clean-energy systems.

That shift is not only about emissions.

Reliable solar power in vulnerable communities can support refrigeration, irrigation, communications, schools, clinics, local businesses and cooling during dangerous heatwaves. In many regions, renewable energy is becoming not only cleaner, but cheaper and more secure.

This is where climate strategy becomes larger than climate policy.

Clean energy is increasingly also a poverty strategy, a health strategy and a resilience strategy.

The goal cannot be energy scarcity with greener branding. The goal must be clean energy abundance that improves quality of life while reducing emissions.

The Missing Ingredient Is Scale

Again and again, the conversation returned to the same obstacle: scale.

The world is not short of climate solutions. It is short of systems capable of deploying them fast enough.

Henrik Österblom, Director of the Anthropocene Lab at the Royal Swedish Academy of Sciences, described research showing how a relatively small number of dominant corporations can shape entire industries. In sectors such as seafood, coordinated pressure from science, investors, regulation and public accountability has already pushed major companies toward measurable sustainability commitments.

The same logic could increasingly apply to shipping, finance, food systems, methane reduction and heavy industry.

If a relatively small number of actors influence a large share of planetary outcomes, they become leverage points for accelerating change.

This does not mean voluntary action can replace regulation. It cannot.

But it does suggest that implementation accelerates when science, markets, policy and communication begin moving in the same direction.

Climate Change Is Also A Health Crisis

One of the clearest themes of the roundtable was that climate change can no longer be communicated only as an environmental issue.

Dr. Mimi Guarneri, a cardiologist and President of the Academy of Integrative Health and Medicine, argued that climate impacts are already appearing directly inside hospitals and communities through cardiovascular disease, respiratory illness, wildfire smoke exposure, infectious disease, heat stress, anxiety and trauma.

This may become one of the most important communication shifts of the next decade.

People may disagree about climate models or policy details. But they are less likely to ignore asthma, dangerous heatwaves, food insecurity, wildfire smoke or collapsing insurance systems.

The more climate risk becomes visible in daily life, the more the discussion moves from ideology toward public safety.

Methane Could Help Buy Time

Several participants also emphasized the importance of reducing short-lived climate pollutants, especially methane.

Carbon dioxide remains the dominant long-term driver of warming and must decline rapidly. But methane operates on shorter timeframes. It is significantly more powerful than carbon dioxide in the near term, while also leaving the atmosphere much faster.

That means methane reductions can slow warming relatively quickly.

In practical terms, methane reduction is one of the few climate actions capable of influencing the temperature curve within political and infrastructure planning timeframes.

Leaks from fossil fuel infrastructure can increasingly be detected from space. Waste systems can improve. Agricultural practices can evolve. Feed innovations may help reduce livestock emissions.

None of this replaces the need to phase out fossil fuels. But it could buy valuable time during the decades when climate risks are accelerating fastest.

The Climate Debate Is No Longer About Knowledge

At one point during the discussion, I offered a metaphor I often use to communicate science. It seemed to resonate in the room.

The climate transition is like a champagne bottle.

Inside are the bubbles: science, clean technology, renewable energy, investors, health professionals, educators, younger generations and rapidly improving solutions.

The bottle is under pressure.

But the cork remains.

That cork includes political resistance, misinformation, short-term financial incentives, regulatory inertia and entrenched fossil-fuel interests.

But it is also more complicated than that.

Energy systems are difficult to transform. Infrastructure takes time. Grids must expand. Storage capacity must scale. Poor countries cannot be asked to choose between development and climate stability.

This is why the “how” phase matters so much.

The central challenge is no longer scientific discovery alone. It is coordination, implementation and speed.

For decades, opponents of climate action have often communicated through simple emotional narratives while climate advocates responded with technical reports.

Reports remain essential, but reports alone do not build public momentum.

The world also needs stronger storytelling, clearer communication and more trusted messengers capable of translating planetary risk into everyday human reality.

Scott Parazynski, a former NASA astronaut and CEO of green aviation company OnwardAir, ended the roundtable with images from space. Earth from orbit is beautiful beyond language. But it also reveals scars: fires, deforestation, ship tracks, contrails, glacier retreat and pollution.

The view from above does something data alone rarely does. It reaches the heart before the argument begins.

That matters in a world where science is increasingly attacked and even images themselves are increasingly doubted.

The Next Test Of Climate Leadership

The Crafoord Prize roundtable did not produce a single grand solution. That was part of its value. Climate change is too complex for one answer, one technology or one institution to solve alone. But across the discussion, several themes returned again and again.

Climate resilience increasingly needs to be treated not as disaster relief after catastrophe strikes, but as a core development strategy. The poorest three billion people, who contributed least to the crisis yet remain most vulnerable to its consequences, must move closer to the center of climate decision-making. Health also emerged as one of the most important public languages for climate action, alongside a growing recognition that reducing methane and other short-lived climate pollutants could help buy valuable time during the decades ahead.

Again and again, the conversation returned to implementation. Scientists, investors, policymakers, business leaders, educators, communicators and communities can no longer operate in separate worlds if humanity hopes to scale solutions fast enough. That may ultimately become the defining climate leadership test of the next decade.

For years, climate debates centered on whether the crisis was real and whether action was necessary. Those arguments are becoming increasingly obsolete. The harder questions now are practical. Can humanity build the machinery of implementation fast enough? Can clean energy scale rapidly enough to support both development and decarbonization? And can political systems move at the speed physics now demands?

One of the most striking ideas raised during the roundtable was Ramanathan’s framing of humanity as living on three different planets of vulnerability. The wealthiest one billion still retain significant protection through infrastructure, insurance, mobility and resources. But billions of others do not. In the end, there are not three atmospheres. There is one shared climate system, even if its consequences are experienced profoundly unequally.

The Crafoord Prize recognized research that helped humanity better understand how invisible pollutants reshape the visible world. But the roundtable that followed focused on something even more difficult: how scientific understanding can be translated into coordinated action at planetary scale.

Science has already warned us. The challenge now is whether humanity can organize the trust, finance, communication and political courage needed to act on what it already knows.

The world does not need another reminder that the bottle is under pressure. It needs the courage, finance and leadership to finally remove the cork.