Q. “Tundra regions are ecologically fragile but economically important.” Examine this statement critically.

Model Answer: 

Tundra biomes, defined by continuous permafrost and low thermal energy, present an acute paradox between severe biophysical fragility and escalating global resource exploitation.

1. Drivers of Extreme Ecological Fragility

• Cryospheric Sensitivity: Permafrost degradation triggers thermokarst formation, ground subsidence, and methane release under Arctic Amplification.
• Slow Biotic Regeneration: Extremely short growing seasons impede vegetation recovery following physical disturbances (e.g., slow-growing Cladonia lichens).
• Truncated Food Webs: Low species diversity creates hyper-vulnerable trophic chains susceptible to systemic collapse (e.g., caribou, lemmings).
• Nutrient-Poor Pedology: Thin, acidic, waterlogged soils limit soil-microbial buffering capacity against chemical pollutants.

2. Economic Potential vs. Ecological Risks

• Hydrocarbon Wealth: Houses vast untapped fossil fuels (e.g., Yamal LNG, Prudhoe Bay); extraction risks catastrophic, non-degradable oil spills.
• Critical Minerals: High concentrations of nickel, copper, and rare earths (e.g., Norilsk mining) cause extensive acid drainage and heavy metal pollution.
• Commercial Navigation: Melting sea ice opens the Northern Sea Route (NSR), reducing shipping distances while increasing black carbon deposition.
• Geostrategic Infrastructure: Linear infrastructure (pipelines, roads) fragments migratory corridors and destabilizes permafrost foundations.

Sustainable utilization requires shifting from reckless extraction to conservation, governed by the Arctic Council protocols and indigenous-led ecological co-management frameworks.