What are Gas Hydrates? (Briefly)
Gas hydrates are ice-like crystalline structures in which methane gas is trapped within water molecules. They are mostly found:
- In deep ocean sediments, and
- In permafrost regions (very cold land areas).
Importance of Gas Hydrates
1) Huge Future Energy Source
- Gas hydrates contain enormous amounts of methane.
- The total energy stored in gas hydrates is estimated to be more than all known coal, oil, and natural gas combined.
- They are considered a potential future fuel when conventional fossil fuels decline.
2) Alternative to Conventional Natural Gas
- Methane from gas hydrates can be used similarly to natural gas for:
- Electricity generation
- Cooking and heating
- Industrial fuel
This could reduce dependence on oil and imported gas for many countries.
3) Energy Security for Countries (Especially India, Japan, etc.)
- Countries with limited fossil fuel reserves but large offshore gas hydrate deposits (like India and Japan) see this as a strategic resource.
- India has discovered gas hydrate zones in:
- Krishna-Godavari Basin
- Andaman Sea
- Mahanadi Basin
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