How Can We Save Humanity?
- An Integrated Design of Technology, Finance, and Action for a 2°C Path
Criticism of Technological Optimism
Klein criticizes the optimism held by some that "technology alone can solve the problem."
He argues that while technologies such as Carbon Capture, U.S. (CCUS), geoengineering, and AI-based optimization are important, they cannot solve the problem in themselves. Klein warns that if technology is used as a tool to maintain the existing system, it could actually delay the problem.
The core solution proposed by Klein is called the Green New Deal. U.S. President Franklin Roosevelt implemented the New Deal policy to overcome the Great Depression of the 20th century. The Green New Deal is not merely an environmental policy, but a comprehensive strategy to redesign economic and social structures.
Key elements include large-scale investment in renewable energy, expansion of public infrastructure, job creation, alleviation of inequality, and strengthening of social safety nets. Thus, the Green New Deal is a project that aims to realize social justice while simultaneously addressing the climate crisis.
Klein emphasizes that the climate crisis exacerbates existing inequalities. It is known that low-income groups are more vulnerable to climate disasters, and while developing countries bear less historical responsibility for the climate crisis resulting from the carbon footprints left by the United States and major developed nations, they are ironically suffering greater damage than the responsible parties. From a sociostructural perspective, the working class is also more likely to be exposed to job risks during the transition process.
Therefore, it is argued that climate response must include a Just Transition, a concept that has come to be discussed as a core agenda item at the COP meetings held annually to encourage global efforts and voluntary reductions to address climate change.
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Evaluation: The Limitation of the ‘Depth’ of Transition
Klein's analysis is powerful, but it certainly has limitations. Klein's discussion still focuses on the "sustainability of human society." However, from an ecological perspective, the balance of the entire life system, including humans, is viewed as more fundamental and sustainable. In other words, the issue is not simply whether humans survive, but how the entire ecosystem achieves harmony.
The Green New Deal can be seen as a strategy to "greenize" existing growth models. However, the following question is also possible:
"Should we continue to grow at any cost?"
Ideal international cooperation or technological innovation can only adequately address the climate crisis when other conditions are right. In reality, these conditions are very frequently swayed by national selfishness, lobbying by oil companies, and politicians seeking victory for their own parties. Let me give another example. While Klein emphasizes collective action and social movements, his specific analysis of changes in individual lifestyles is relatively limited.
Editor
Daniel Chung
(2026)
Behavioral Change and Collective Imagination
Klein believes that while individual behavioral change is important, a change in collective imagination is even more crucial. In other words, we must ask the following questions:
“Is infinite growth possible?”
“Is a consumption-driven society sustainable?”
“Should the way we use energy change?”
The climate crisis can be viewed as both a “crisis” and an opportunity to design a new society. However, as will be discussed later, climate policy continues to lag behind and is leaning toward failure rather than facing a major turning point. Klein points to powerful interest groups as the reason for the failure of climate policy. Specifically, fossil fuel corporations that dominate the global economy, political lobbyists, and career politicians—including election specialists pandering to their own short-term political interests—consistently act as obstacles to climate policy; their powerful political influence and behind-the-scenes control delay significant structural changes.
Although it is difficult to bring about policy change, Klein emphasizes the possibility of change through bottom-up pressure utilizing soft power, such as youth climate movements, pressure from civil society, and expanded international cooperation.
Klein's core message is clear: the climate crisis is not merely an environmental issue, but a question of what kind of society we choose.
We must choose one of two paths: maintaining the existing system and responding gradually, or building a new system through a fundamental transformation. She argues that only the second path can resolve the climate crisis.
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