What are Representative Concentration Pathways for Founders

Building a company that lasts decades requires looking beyond next quarter’s revenue. You have to look at the structural environment your business will inhabit. One of the most significant factors in that future environment is climate change.

Scientists and policymakers use specific models to predict what the world might look like under different conditions. These models are called Representative Concentration Pathways, or RCPs.

They were introduced by the Intergovernmental Panel on Climate Change (IPCC). Specifically, they were featured in the Fifth Assessment Report to provide a consistent set of data for researchers.

If you are building a startup in logistics, agriculture, energy, or even software that depends on physical infrastructure, RCPs are your map for the future. They are not just for academics. They are for anyone trying to understand the physical and regulatory risks of the coming century.

An RCP is a trajectory of greenhouse gas concentrations. It is not just about how much carbon we emit. It is about the concentration that remains in the atmosphere and how that affects the energy balance of the planet.

This energy balance is measured by a term called radiative forcing. Radiative forcing is the difference between the sunlight absorbed by the Earth and the energy radiated back into space.

When radiative forcing is positive, the Earth warms. RCPs are named after the level of radiative forcing reached by the year 2100.

There are four primary pathways typically discussed in the literature:

• RCP 2.6: A scenario where global warming is kept below 2 degrees Celsius.
• RCP 4.5: An intermediate scenario where emissions peak around 2040 and then decline.
• RCP 6.0: A scenario where emissions peak around 2060 and then decline.
• RCP 8.5: A high emissions scenario where greenhouse gas concentrations continue to rise throughout the century.

These are representative because each one represents a larger set of scenarios. They are pathways because they describe a timeline of how concentrations change over many years.

As you dive deeper into climate data for your business planning, you will likely encounter Shared Socioeconomic Pathways (SSPs). It is important to distinguish the two.

RCPs focus on the physical results. They look at the chemistry of the atmosphere and the heat trapped on the surface. They do not tell you how we get there.

SSPs, on the other hand, focus on the human story. They look at population growth, economic development, and technological shifts.

Think of RCPs as the destination and SSPs as the route taken by society.

In your business planning, you might use an RCP to understand how many days of extreme heat your warehouse will face. You would use an SSP to understand the labor laws or carbon taxes that might be in place during that same period.

Using them together gives you a more complete picture of risk. However, for most founders looking at physical infrastructure or supply chain resilience, the RCP is the foundational starting point.

Most startups operate with a lean mindset. You focus on what is right in front of you. But if you want to build something that lasts, you have to consider external shocks.

Climate risk is often categorized into two buckets: physical risk and transition risk.

Physical risks are the actual changes in weather and environment. If you are building a hardware startup that relies on specialized components from a specific region, RCP data can help you assess the long term viability of that supply chain.

Transition risks involve the move toward a low carbon economy. This includes new regulations and changes in consumer behavior.

If the world follows an RCP 2.6 trajectory, the transition risk is high. This means carbon taxes and strict regulations are likely. If the world follows RCP 8.5, the physical risk is high, meaning extreme weather could disrupt your operations.

Founders who understand these pathways can build more resilient businesses. They can choose locations for their offices or factories that are less vulnerable. They can design products that solve the specific problems created by these warming scenarios.

How do you actually use this in a startup environment?

Suppose you are seeking venture capital. Investors are increasingly asking for ESG (Environmental, Social, and Governance) disclosures. Being able to explain how your business model holds up under RCP 4.5 versus RCP 8.5 shows a level of sophistication that sets you apart.

It demonstrates that you are not just thinking about the exit strategy but about the actual longevity of the company.

Another scenario involves product development. If you are in the agtech space, knowing the projected temperature changes in a specific region allows you to develop seeds or tools tailored for that future.

Real estate and fintech startups also use these pathways to calculate the future value of assets. If a property is in an area projected to have frequent flooding under RCP 6.0, its long term value is significantly lower.

You can use these pathways to stress test your assumptions. If your business only works if the world stays exactly as it is today, you have a fragile business.

While RCPs provide a structured way to think about the future, they are not crystal balls. There is significant uncertainty in climate modeling.

One of the biggest unknowns is the role of feedback loops. For example, as permafrost melts, it releases methane, which causes more warming. This could accelerate a pathway faster than the models predict.

Another unknown is how quickly technology can scale. Can carbon capture technology change the trajectory from an 8.5 to a 4.5? We do not know yet.

As a founder, you are used to operating with incomplete information. Climate data is no different.

The goal is not to be perfectly right. The goal is to avoid being catastrophically wrong.

By incorporating RCPs into your strategic thinking, you are acknowledging the complexity of the world. You are building a business that is prepared for a range of futures rather than just one.

This is what it means to build something remarkable. You are not just chasing a trend. You are understanding the fundamental forces that will shape the market for the next fifty years.

Start by looking at the IPCC reports. See which RCPs are most relevant to your industry. Use that data to ask harder questions of your leadership team.

What happens to our supply chain if we hit four degrees of warming? What happens to our customer base if carbon becomes prohibitively expensive?

These are the questions that define the difference between a startup that flashes and fades and a business that creates real, lasting value.