请将以下英文短文的主旨概述成一句话："Despite efforts to reduce its environmental impact, the coal mining industry continues to face significant challenges in balancing economic growth with environmental protection. The industry has implemented various measures, such as reclaiming mined land and reducing emissions, but these efforts are often hampered by economic pressures and regulatory obstacles. Consequently, achieving sustainable development in the coal mining sector remains a complex and contentious issue."
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尽管采取了减少环境影响的措施，煤炭开采业在平衡经济增长与环境保护方面仍面临重大挑战。
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