What is the issue?
- A coal mine in Meghalaya’s East Jaintia Hills collapsed recently, trapping at least 15 workers who are feared dead.
- It has thrown light on a dangerous procedure known as “rat-hole mining”.
What is rat-hole mining?
- It involves digging of very small tunnels, usually only 3-4 feet high, which workers (often children) enter and extract coal.
- The rat-hole mining is broadly of two types - side-cutting and box-cutting.
- In side-cutting procedure, narrow tunnels are dug on the hill slopes and workers go inside until they find the coal seam.
- The coal seam in hills of Meghalaya is very thin, less than 2 m in most cases.
- In the box-cutting type, a rectangular opening is made, varying from 10 to 100 sq m.
- Through this, a vertical pit, 100 to 400 feet deep, is dug.
- Once the coal seam is found, rat-hole-sized tunnels are dug horizontally through which workers can extract the coal.
Why is it very prevalent?
- In Jharkhand, the coal layer is extremely thick, where open-cast mining can be done.
- But no other method would be economically viable in Meghalaya, where the coal seam is extremely thin.
- Removal of rocks from the hilly terrain and putting up pillars inside the mine to prevent collapse would be costlier.
- So despite a ban, rat-hole mining remains the prevalent procedure for coal mining in Meghalaya.
- Rat-hole mining is the locally developed technique and the most commonly used one.
- It is not regulated by any law, and coal extraction has been made by unscrupulous elements in a most illegal and unscientific manner.
- Meghalaya’s annual coal production of nearly 6 million tonnes is mostly said to have come through rat-hole mining.
What are the impacts?
- Ecology - Rat-hole mining in Meghalaya had caused the water in the Kopili river (flows through Meghalaya and Assam) to turn acidic.
- The entire roadsides in and around mining areas are used for piling of coal.
- This is getting to be a major source of air, water and soil pollution.
- Off road movement of trucks and other vehicles in the area causes further damage to the ecology of the area.
- Risk to lives - Due to rat-hole mining, during the rainy season, water flood into the mining areas resulting in death of many.
- If water has seeped into the cave, the worker can enter only after the water is pumped out.
What are the shortcomings?
- Ban - The National Green Tribunal (NGT) has banned rat-hole mining in 2014, and retained the ban in 2015.
- The ban was on grounds of the practice being unscientific and unsafe for workers.
- The NGT order bans not only rat-hole mining but all “unscientific and illegal mining”.
- But orders of the Tribunal have been violated without exception.
- The State Government has failed to check illegal mining effectively.
- It has also not framed the mining policy, mining plan and the guidelines as directed under the orders of the Tribunal.
- The state has in place the Meghalaya Mines and Mineral Policy, 2012; but the NGT finds it inadequate.
- Protection - Constitution's 6th Schedule intends to protect the community’s ownership over its land and autonomy and consent over its nature of use.
- Coal mining currently underway in Meghalaya was a corruption of this Constitutional Provision.
- Private individuals with interests in earning monetary benefits from minerals vested under the land are engaging in coal mining.
- They are attempting to legitimize this act by claiming immunity through tribal autonomy over land ownership.
Source: Indian Express
