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Elon Musk’s Mars Settlement Plan Faces Reality Check in New Book

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While Elon Musk’s goal of settling Mars within the next 30 years has sparked excitement about humanity’s future as a multiplanetary species, a new book casts serious doubts on the feasibility of such a vision. In A City on Mars: Can We Settle Space, Should We Settle Space, and Have We Really Thought This Through?, authors Kelly and Zach Weinersmith argue that settling the red planet is far more challenging—and dangerous—than many realize.

The Weinersmiths, a biologist and a cartoonist, explore the myriad obstacles humans would face in establishing a sustainable presence on Mars, from environmental dangers to the complexities of human reproduction. Their research, which led to their skepticism about space colonization, earned their book the 2024 Royal Society Trivedi Science Book Prize.

Initially intrigued by the possibility of space settlements, the authors delved into the harsh realities of Martian living. Kelly Weinersmith explains, “We were pretty excited about space settlement happening… but the more we got into it, we realized there’s a lot we don’t know—and doing this too soon could lead to an ethical catastrophe.”

The Harsh Reality of Mars

The book argues that the idea of leaving Earth for Mars is akin to escaping a messy room only to end up in a toxic waste dump. The Martian environment, with its weak gravity, extreme radiation, thin atmosphere, and toxic soil, poses significant threats to human life. “Mars just lacks a lot of the stuff that we have on Earth,” says Zach Weinersmith, noting the planet’s hostile conditions, including a 40% gravity compared to Earth, high radiation levels, and perchlorate-laden soil, which could disrupt human health and development.

The authors are particularly concerned about human reproduction on Mars. With limited data on how humans will respond to Mars’ conditions, the risks for pregnant women and babies could be catastrophic. Studies from space stations suggest that microgravity weakens bones and muscles, which would worsen on Mars, where gravity is only 38% of Earth’s. Kelly Weinersmith points out that even a slight bone loss could prove fatal during childbirth, emphasizing the need for more research into reproduction in space.

Slow, Steady Progress for Research

While the Weinersmiths are not dismissive of space exploration, they argue that short-term colonization is impractical. Instead, they see potential for incremental progress, such as setting up research stations on the Moon and conducting experiments on animal life in space. The authors predict that in the near term, humans may land on Mars, conduct scientific exploration, and return to Earth, but permanent settlements and reproduction will remain out of reach for now.

The biggest challenges lie in sustaining life on Mars. Technologies to build space farms, establish safe habitats, and produce oxygen in closed-loop systems are still underdeveloped. “We don’t really know how to do that,” says Zach Weinersmith, highlighting the immense research needed for survival in such a sealed, extreme environment.

Ethical and Geopolitical Concerns

The Weinersmiths also raise significant ethical and geopolitical issues. The Outer Space Treaty of 1967, which governs activities in space, provides little guidance on issues like resource extraction and territorial claims on Mars. This ambiguity could lead to international tensions, particularly between space powers like the United States and China, as they race to control valuable sites on Mars and other celestial bodies.

A Reality Check on Space Settlements

Ultimately, A City on Mars presents a cautionary tale about the complexities of interplanetary settlement. While space exploration holds tremendous potential for scientific advancement, the authors argue that the dream of colonizing Mars in the immediate future is a dangerous and unrealistic venture. Their book calls for a more measured approach, emphasizing research, ethical considerations, and long-term planning over the rush to claim Mars as humanity’s second home.

 

The Evolving Role of Defense Stocks in ESG Portfolios Amidst Geopolitical Shifts

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The ongoing conflict between Russia and Ukraine has sparked a significant transformation in the way defense stocks are regarded within the realm of environmental, social, and governance (ESG) investing. Traditionally, defense stocks have been excluded from ESG portfolios due to their connection with military activities and warfare, which raised ethical concerns among mission-driven investors. However, in recent months, there has been a growing willingness among ESG fund managers to incorporate defense companies, especially as the geopolitical landscape intensifies and military spending soars.

This shift, though still contentious, represents a profound change in ESG investing dynamics. The CEO of Saab, a Swedish defense and security company, highlighted this evolving trend, noting a remarkable increase in shareholders since the war began. While some institutional investors, such as pension funds, remain hesitant to include defense companies in their portfolios, others are recognizing the importance of national security and the deterrent capabilities provided by such firms. This has led to a reevaluation of whether defense companies, which contribute to societal resilience, should be considered within the scope of ESG.

Saab, which produces advanced military equipment such as missiles and fighter jets, has seen its stock price surge by around 330% since the onset of the war in Ukraine. This performance underscores the growing interest in the defense sector, even among investors traditionally focused on ethical concerns. Yet, skepticism persists, particularly from retail investors and fund managers wary of aligning with companies associated with warfare. For many, the ethical implications of investing in companies that manufacture weapons remain a critical issue.

The debate extends beyond Europe, with ESG investments becoming a politically charged topic in the U.S. In recent years, Republican lawmakers have criticized ESG investing as a form of “woke capitalism,” accusing it of prioritizing social goals over financial returns. On the other hand, Democrats have defended ESG principles, framing them as part of a broader effort to promote responsible business practices. This divide is likely to be further shaped by the outcome of the upcoming U.S. presidential election, which could have significant implications for the future of ESG investing in the defense sector.

Despite the controversies, some industry leaders believe that the role of defense companies in protecting free societies is gaining broader acceptance. Brad Greve, CFO of BAE Systems, remarked that discussions about the positive role of defense firms were almost impossible before the war in Ukraine. The conflict has reshaped public perception, allowing for more open conversations about how defense companies contribute to societal stability and security. BAE Systems, another major defense player, has also seen its stock rise significantly, driven by increased demand for its military products.

As geopolitical tensions remain high and military spending continues to grow, the inclusion of defense stocks in ESG portfolios is likely to be an ongoing topic of debate. Fund managers are divided on whether these companies should be classified as villains or essential components of national security. Ultimately, the future of defense stocks within ESG portfolios will depend on how investors reconcile the need for security with the ethical considerations that have long defined sustainable investing.