Ancient African Ingenuity: What 11,000 Years of Climate Adaptation Can Teach Us Today

Silhouetted trees and forest under a golden African sunset sky.
A glowing sunset over the African landscape—reminding us of the continent’s long history of resilience and adaptation.

We often talk about climate change like it’s a new threat. But humanity has been navigating climate shifts for thousands of years. One of the most inspiring stories comes from ancient Africa. Long before modern tools or technology, communities across the continent developed smart, adaptable ways to survive—and even thrive—as their environments changed.

What they figured out could still help us today.

What Was the Holocene?

The Holocene is the name scientists give to the current period of Earth’s history. It began around 11,000 years ago, just after the last Ice Age. During this time, the world’s climate became warmer and wetter—and then later, drier in many places. These shifts had a huge impact on rivers, grasslands, forests, and deserts. And that, in turn, shaped how people could live and find food.

In Africa, the Holocene included a time called the African Humid Period (around 14,700–5,500 years ago). During this period, parts of the Sahara were green and full of lakes. But when the rains stopped, the region slowly turned into the desert we know today.

Smart Survival: Different Ways to Live

Faced with changing weather and landscapes, ancient African communities didn’t stick to just one way of living. Instead, they used a mix of four main strategies:

  • Herding animals (pastoralism): Raising animals like cattle, goats, and sheep for milk, meat, and other products.

  • Growing crops (cultivation): Planting and harvesting food like grains, fruits, and vegetables.

  • Fishing: Catching fish and using water-based resources near rivers, lakes, or the ocean.

  • Foraging (hunting and gathering): Collecting wild plants and hunting animals for food.

Instead of depending on just one of these, many people blended them. That’s what made their way of life so strong.

What the Bones Tell Us

So how do we know all this?

Scientists looked at ancient human and animal bones from all over Africa and studied tiny chemical clues inside them, called isotopes. These isotopes—especially of carbon (C) and nitrogen (N)—help tell us what people were eating. For example:

  • If someone ate mostly plants that grow in dry, sunny places (like millet), their bones have a different carbon signature than someone who ate forest-grown foods (like wheat or fruits).

  • Higher nitrogen levels often meant people were eating more animal products or fish.

This method, called isotopic analysis, allowed researchers to map out who was eating what, where, and when.

Why Herding Was So Powerful

One of the most flexible strategies turned out to be herding animals. Herding was like a moving pantry—people could take their animals to where the grass and water were, even during dry spells. That mobility gave them a huge advantage when the climate got less predictable.

In fact, scientists found that herding-based ways of life were the most widespread, showing up at over 60% of the archaeological sites studied. This helped communities survive in deserts, mountains, savannas, and everywhere in between.

Key benefits of herding:

  • Could move with the seasons and rainfall

  • Didn’t rely on planting or harvesting schedules

  • Provided milk, meat, and even materials like dung for fuel

Mixing Strategies

But what made these ancient strategies so effective wasn’t just herding or farming on their own—it was how people mixed and matched them.

Some communities combined herding with fishing, or farming with foraging. These “mixed livelihood strategies” gave them more options, more stability, and more resilience when things changed unexpectedly—like a drought, or a failed crop.

For example:

  • People in southern Africa fished in coastal areas while also hunting and gathering wild foods.

  • In East Africa, communities used both crops and animals, creating a safety net of food sources.

  • In northern Africa, herding and farming coexisted in regions with limited rainfall.

This variety helped them bounce back from environmental shocks—and it’s something we can learn from today.

What This Means Today

Today, climate change is hitting some communities harder than others—especially in parts of Africa. But the story of the past offers hope. These ancient strategies show that flexibility and diversity can be powerful tools for survival.

Modern farming often focuses on a single crop. But as the climate becomes more unpredictable, we may need to return to more blended, locally tailored approaches.

Lessons we can apply today:

  • Encourage farming that includes both plants and animals.

  • Support local fishing and foraging knowledge where it still exists.

  • Design policies that allow communities to adapt rather than stick to one-size-fits-all solutions.

By looking back, we see that people have always been capable of adapting with intelligence and creativity. The question is whether we’ll choose to do the same—especially now, with even more at stake.


Sources: Phelps, L. N., Davis, D. S., Chen, J. C., Monroe, S., Mangut, C., Lehmann, C. E. R., & Douglass, K. (2025). Africa-wide diversification of livelihood strategies: Isotopic insights into Holocene human adaptations to climate change. One Earth, 8(6), 101304. https://linkinghub.elsevier.com/retrieve/pii/S2590332225001307

The New Reality of Climate Risk

A wooden thermometer showing high temperatures in both Celsius and Fahrenheit against a bright orange background.
Rising temperatures are one of the most dangerous yet least visible effects of climate change.

What Jeff Goodell and Porter Fox Want You to Know About Climate Change

You step outside. It looks like a regular sunny day—but what if that heat could kill you?

That’s not just a dramatic statement. It’s the central message of a recent conversation hosted by the Aspen Institute with climate journalists Jeff Goodell and Porter Fox, moderated by Carolyn Heldman Rivera.

We found this talk to be deeply relevant to our purpose of raising awareness about the climate crisis and advocate for innovative, equitable, and transformative solutions. So we’re sharing the main takeaways in plain language—because this topic affects everyone.

Their message is simple and urgent: heat is the invisible force behind today’s most extreme climate disasters and understanding it can help us all make smarter, safer choices.

The Experts

  • Jeff Goodell is the author of The Heat Will Kill You First, a New York Times bestseller. He’s been writing about climate change for more than 20 years.

  • Porter Fox is the author of Category Five and Deep. He’s an environmental journalist and teaches at Columbia University.

  • Carolyn Heldman Rivera moderated the conversation. She’s a podcast host and the former Executive Director at Aspen Public Radio.

These are people who’ve spent years talking to scientists, traveling to climate hotspots, and telling the stories most of us don’t hear.

Heat: The Hidden Force Behind Fires, Floods, and Storms

When we think of climate change, many of us imagine melting ice caps or stronger hurricanes. But Jeff Goodell reminds us that it all starts with heat. Heat isn’t just uncomfortable—it’s deadly. And unlike storms or fires, heat is silent and invisible. You can’t see it coming. You might not even realize you’re in danger until it’s too late. Here’s how it works:

  • Hotter air holds more moisture, which leads to heavier rainfall and flash floods.

  • Dryer, hotter conditions make wildfires more intense.

  • Warm oceans create stronger hurricanes.

This isn’t theory, it’s happening now. The devastating floods in Texas, wildfires in California, and stronger hurricanes in the Atlantic are all linked to rising temperatures.

Why Adaptation Matters Now—Not Later

For years, the focus was on mitigation—reducing emissions to stop climate change. That’s still important. But adaptation—adjusting how we live—is just as critical now. As Porter Fox put it:


We’ve built our world for a climate that no longer exists.


That means we need to:

  • Rethink city planning.

  • Strengthen infrastructure like water systems and sewage.

  • Prepare for more frequent and intense heatwaves, floods, and storms.

Adaptation is not giving up. It’s facing reality and making sure our communities are safe in this new climate.

There’s No “Safe Zone” Anymore

Think places like Portland, Oregon or Asheville, North Carolina are immune to extreme weather? Think again.

In 2021, the Pacific Northwest saw temperatures soar past 115°F—killing hundreds. Areas once seen as “climate havens” are now at risk. People are still moving to hotter regions like Texas and Florida for jobs, affordability, or family. But climate risk is no longer tied to just one region. It’s everywhere.

Lesson: It’s better to prepare wherever you are than to hope a move will protect you.

Can Technology Save Us? The Risky Bet on Geoengineering

Some scientists are considering a last-resort idea: spraying tiny particles into the sky to reflect sunlight and cool the planet. It’s called solar geoengineering. Jeff Goodell calls this “a bad idea whose time has come.” Why? Because:

  • It could disrupt rainfall patterns like monsoons.

  • It’s untested and unpredictable.

  • It doesn’t solve the root cause: greenhouse gas emissions.

It may sound like science fiction, but this idea is gaining attention because climate impacts are becoming harder to ignore.

Who Pays for the Damage? Climate Lawsuits Target Big Oil

Communities like Boulder, Colorado are taking oil companies to court. Their argument? Companies like Exxon knew decades ago that burning fossil fuels would cause climate change—and chose to mislead the public. These lawsuits are similar to the tobacco lawsuits of the 1990s. They aim to:

  • Hold polluters accountable.

  • Secure funding to pay for climate adaptation projects.

The Colorado Supreme Court recently allowed Boulder’s lawsuit to move forward. It could set a powerful precedent.

What We Can Do Now (Without Being a Scientist)

You don’t need a science degree or a political title to make a difference. Here are a few simple actions:

  • Support local resilience efforts: Volunteer or donate to wildfire prevention, cooling centers, or clean energy programs in your community.

  • Vote and speak up: Your voice matters—especially in local elections and community meetings.

  • Elect politicians who care and whose actions support their statements.

Change often starts with conversations—around dinner tables, classrooms, or workplaces.

Finding Hope: Young Leaders, Scientists, and Local Heroes

Despite the challenges, there are many reasons to feel hopeful:

Small communities—and the people within them—are showing the rest of the world what’s possible.

Summing Up

Climate change is personal. It affects where we live, how we stay safe, and what kind of future we’re building. There’s no single fix. But there are smart steps we can all take—starting now.

  • Understand the risks of heat.

  • Support adaptation efforts.

  • Use your voice, your vote, and your values

The world is changing. But together, we can change with it—and build something better in the process.

The Legal Liability Japanese Companies Face: Why Climate Change Risks Are a Growing Concern

Cover page of the report titled

The cover page of the “Directors’ Duties Regarding Climate Change in Japan: 2025” report by Dr. Yoshihiro Yamada, Dr. Janis Sarra, and Dr. Masafumi Nakahigashi, published by the Commonwealth Climate and Law Initiative (CCLI). The image of Mount Fuji symbolizes Japan’s resilience amidst the challenges of climate change.


Why Climate Change Matters

Climate change is a global challenge that’s affecting every corner of the world. Rising temperatures, extreme weather events, and unpredictable climate patterns are causing disruption, and no country is immune from its effects. Japan, an island nation, is particularly vulnerable to climate change because of its geographical location and dense population. Companies in Japan are now facing significant risks, not only from the physical impacts of climate change but also from the legal and financial responsibilities that come with it.

As climate change accelerates, the risks to businesses are no longer something that can be ignored or delayed. Corporate leaders in Japan are beginning to understand that failing to take action on climate-related risks could lead to severe consequences.

What Are the Risks of Climate Change?

Climate change poses two major types of risks to businesses: physical and transition risks.

Physical Risks are those that arise from the direct impact of climate change. These risks are divided into two categories:

  • Acute (immediate) risks: These are extreme events such as typhoons, floods, and heatwaves. For example, in recent years, Japan has experienced severe typhoons and record-breaking heatwaves, causing massive destruction.

  • Chronic (long-term) risks: These refer to gradual changes such as rising sea levels and ongoing temperature increases. Both of which can have a slower but equally harmful impact on businesses, especially those relying on natural resources.

Transition Risks are related to the global shift toward a more sustainable, low-carbon economy. As governments, investors, and consumers push for greener practices, businesses face new challenges:

  • Regulatory risks: New laws and policies aimed at reducing carbon emissions could impact how companies operate.

  • Market risks: As consumers demand greener products, companies that do not adapt may lose market share.

  • Technological risks: Companies that fail to innovate and adopt clean technologies might fall behind their competitors.

Why Japanese Companies Are Concerned About Climate Change

Japan faces multiple concerns when it comes to climate change. These concerns are not just about the physical damage caused by storms and rising seas—they also include financial and legal risks that could severely affect businesses.

Physical Risks: Japan is especially vulnerable to climate events like typhoons, heatwaves, and rising sea levels. For example, over the past decade, Japan has faced over JPY 13.7 trillion (USD $90.8 billion) in climate-related damages. Coastal cities like Tokyo, Osaka, and Nagoya are at high risk of flooding. The country’s agricultural sector is struggling with changes in temperature and rainfall patterns.

Transition Risks: The global shift towards sustainability presents challenges for Japanese businesses. Companies that fail to reduce their carbon footprint or invest in cleaner technologies may lose out to more forward-thinking competitors. Additionally, businesses face the risk of stranded assets—where investments in fossil fuel infrastructure become worthless as the world moves toward renewable energy.

Legal and Financial Liability: Directors of Japanese companies have a legal responsibility to ensure that climate risks are managed properly. If they fail to take action, they could be held personally liable. Japanese laws now require businesses to disclose material climate risks, and failure to do so could lead to lawsuits for breach of fiduciary duty. The pressure is mounting for directors to act, as investors and regulators increasingly demand transparency on climate-related risks.

Investor Pressure: Institutional investors are increasingly focused on sustainability. In Japan, investors representing trillions of dollars are demanding that companies disclose their climate-related risks and take meaningful action. If a company fails to do so, it risks losing investor confidence, which could lead to higher costs of capital and reduced access to funding.

Systemic Risk to the Economy: The Bank of Japan has warned that failing to address climate risks could destabilize the financial system. Mismanagement of these risks could lead to falling asset prices, loss of economic stability, and even disruptions in Japan’s banking system.

How Climate Change Affects Japanese Companies

The effects of climate change are already being felt across many industries in Japan. For instance, the manufacturing sector is vulnerable to extreme weather events that damage facilities and disrupt supply chains. Similarly, Japan’s agricultural sector faces challenges like reduced rice yields due to rising temperatures and unpredictable rainfall patterns.

The economic costs of not addressing these risks are significant. Companies that fail to prepare for climate change may suffer from damaged infrastructure, lost productivity, and increased operational costs. In some cases, the financial impact can be devastating, leading to significant losses in revenue and long-term damage to a company’s bottom line.

Legal Responsibilities for Directors in Japan

Corporate directors in Japan have a legal duty to manage the risks their companies face, including climate-related risks. According to Japanese corporate law, directors must act in the best interests of the company and ensure the company complies with all applicable laws and regulations. This includes climate-related risks.

Under Japan’s Corporate Governance Code, directors are required to oversee the company’s efforts to identify, assess, and manage climate risks. Failure to do so could result in personal liability. In particular, if a director neglects to integrate climate change into their governance strategy, they could face lawsuits from shareholders or be found in breach of their fiduciary duties.

The Role of Climate Governance in Business Success

Proper climate governance is crucial for businesses to remain competitive in a world that is increasingly focused on sustainability. Companies that integrate climate risks into their strategy are better positioned to succeed in the long term. Effective climate governance allows businesses to anticipate regulatory changes, innovate with cleaner technologies, and align with consumer preferences for environmentally friendly products.

In the long run, companies that take climate action seriously can build resilience, improve their reputation, and reduce risks associated with physical and transition challenges. On the other hand, companies that ignore climate risks may find themselves falling behind their competitors or even facing financial ruin.

The Growing Importance of Sustainability

As global investors push for more sustainable business practices, companies that fail to disclose their climate risks or take action to address them are likely to see a loss of investor confidence. Investors are increasingly looking for companies that are committed to reducing their carbon footprint and addressing climate-related risks in their business strategies.

Failure to meet these expectations could not only damage a company’s reputation but also increase the cost of capital and make it more difficult to attract investment in the future. Companies that adopt sustainability practices now will likely enjoy a competitive advantage in attracting responsible investors and staying ahead of regulatory trends.

What Should Directors Do?

Directors of Japanese companies must act now to integrate climate risk management into their governance structures. They should:

  • Assess and disclose climate risks transparently.

  • Seek expert advice to ensure they are making informed decisions about climate change.

  • Ensure that the company’s strategy includes clear goals for reducing greenhouse gas emissions and adapting to climate impacts.

By taking these steps, directors can help safeguard their companies from the financial and legal risks associated with climate change and position them for long-term success in a decarbonized economy.

Call to Action

Japan is taking significant steps to address climate change, with its corporate sector increasingly aware of the legal and financial risks posed by climate impacts. As one of the countries leading the way in climate governance, Japan is setting a strong example for others to follow. However, the fight against climate change requires a global effort. The United States and other countries must step up their efforts to integrate climate risk into corporate governance, adopt stricter environmental regulations, and encourage businesses to embrace sustainability.

As individuals, we can support companies and governments that are prioritizing climate action. We can demand greater transparency and accountability from businesses on their climate-related actions and encourage them to follow Japan’s lead in addressing climate risks head-on. We need to act now—climate change is a challenge that requires bold leadership across the globe. Let’s work together to make sure that countries, especially those with significant global influence, do not fall behind in this critical fight for our planet’s future.


Yamada, Y., Sarra, J., & Nakahigashi, M. (2025). Directors’ Duties Regarding Climate Change in Japan: 2025. Commonwealth Climate and Law Initiative.