Speaker
Description
We are considering the use of existing Martian resources to recreate the planet's past environment. It is worth noting that such a reconstruction could serve as a prelude to terraforming Mars without the need to import material from the Kuiper Belt—a requirement of the radical terraforming scenario proposed by Czechowski (2025, LPSC 2025, #1858). The Martian environment of billions of years ago resembled the target state of the terraforming. The main difference lies in oxygen, which is abundant in Earth's atmosphere but was virtually absent billions of years ago. Of course, if any organisms had emerged and survived on Mars, the reconstruction would entail restoring their lost environment—including the vast bodies of water characteristic of both early Earth and early Mars. Currently, significant part of Martian water may exist in the form of hydrated minerals. With sufficient energy, this water could be recovered from minerals and other sources. The energy cost would likely be lower than that of transporting water from the Kuiper Belt. However, these resources would yield only a limited amount of water. This water might prove unstable; instead of participating in the hydrological cycle, it could be lost in so-called traps. Such instability could trigger a "Sisyphus effect," characterized by the rapid reversal of previously implemented changes. Sisyphean effect could necessitate the delivery of additional, quantities of water— which in practice would mean implementing (at least partially) a radical terraforming scenario—in order to stabilize conditions on the planet. It should be noted that various processes can also trigger the Sisyphean effect for oxygen, nitrogen, or other substances introduced into the environment.