New Delhi: State-owned CIL is looking at green mining options by leveraging a slew of eco-friendly technologies in both underground and opencast mines, a move that would help in augmenting the production and reduce the adverse impact on environment. With land turning out to be a major pain point for expansion of coal mining operations, these technologies bypass land acquisition and avoid its degradation. "Coal India Ltd (CIL) is taking a close look on green mining options in a bid to minimize adverse environmental impact by leveraging a slew of eco-friendly technologies in its underground and opencast mines," the maharatna firm said.