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18th September 2024 (10 Topics)

Rethinking Rapa Nui

Context

Recent studies have challenged long-held beliefs about the population dynamics and environmental impact of the early inhabitants of Rapa Nui (Easter Island). The findings suggest that the island's population was never as large as previously thought and that the alleged ecological collapse leading to the island's demise may be an oversimplification.

What are Rapa Nui?

  • Rapa Nui, commonly known as Easter Island, is a remote volcanic island in the southeastern Pacific Ocean, famous for its hundreds of large stone statues called Moai.
  • It is one of the most isolated inhabited places on Earth, located about 1,900 kilometers from the nearest inhabited island and nearly 3,800 kilometers from the Chilean mainland.
  • The island was first settled around 1210 AD by ancestors of contemporary Polynesians.

Previous Theory

  • The previous theory posited that Rapa Nui's population experienced rapid growth, leading to environmental degradation. It was believed that the inhabitants deforested the island to construct the Moai and to use wood for fuel, leading to a collapse of the ecosystem.
  • This theory painted the island as a cautionary tale of "ecocide," where human actions irrevocably destroyed the environment, resulting in the population's decline.

What Has Been Found Now?

Recent research indicates that the population of Rapa Nui may never have exceeded sustainable levels. Instead of a significant population collapse, it appears that early inhabitants maintained a stable population by adapting to the island's challenging conditions. Key findings include:

  • Rock Gardens: Early settlers constructed rock gardens to cultivate sweet potatoes, which allowed them to secure a food supply despite the island's limited agricultural potential. This technique involved scattering stones over low-lying areas to create favorable microclimates for crop growth.
  • Population Estimates: The area covered by these rock gardens is much smaller than previously assumed—less than 188 hectares, or less than 0.5% of the island. This could only sustain a population of about 2,000, contradicting earlier estimates that suggested larger numbers.
  • Diet and Adaptation: Isotope analysis of bones and teeth indicates that early inhabitants derived a significant portion of their diet from the sea (35-45%) and supplemented it with less nutritious plants. This adaptability suggests resilience in managing limited resources.
  • Stable Population at European Contact: When Europeans first arrived in 1722, the population of Rapa Nui was around 3,000, aligning with the findings that the island's inhabitants successfully adapted to its environmental constraints.

These discoveries challenge the narrative of a catastrophic collapse, suggesting instead that the islanders demonstrated resilience and ingenuity in the face of ecological limitations.

Fact Box: Ecocide
  • Ecocide refers to ‘killing one’s home’ or ‘environment’. Such ‘killing’ could include port expansion projects that destroy fragile marine life and local livelihoods; deforestation; illegal sandmining; polluting rivers with untreated sewage.
  • There is no accepted legal definition of ecocide.
  • Ecocide is a crime in 11 countries, with 27 other nations mulling laws around criminalising environmental damage that is wilfully caused and harms humans, animals and plant species. 
  • India’s stance: Some Indian judgments have used the term ‘ecocide’ in passing, but the concept hasn’t fully materialised in law.
  • In Chandra CFS and Terminal Operators Pvt. Ltd. v. The Commissioner of Customs and Ors, the Madras High Court noted, “... the prohibitory activities of ecocide has been continuing unbridledly by certain section of people by removing the valuable and precious timbers...”
  • The ongoing T.N. Godavarman Thirumulpad vs Union Of India & Ors case in Supreme Court called attention to an “anthropogenic bias” and argued that “environmental justice could be achieved only if we drift away from the principle of anthropocentric to ecocentric.”
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