<span style="color: #222222;">National Green Tribunal, NGT has asked states of Punjab, Haryana and Uttar Pradesh as to how they intend to tackle the problem of crop burning, a major contributor to air pollution in Delhi, this year.</span><br />'' <span style="color: #222222;"><br />'' A bench headed by NGT Chairperson Justice AK Goel asked the three states to file progress reports indicating the strategies and proposed action plan to tackle the problem.</span><br />'' <span style="color: #222222;"><br />'' The direction by the tribunal came following news reports on deaths caused in the national capital due to air pollution, and crop burning being one of the reasons for the poor air quality.<br />'' The bench said the issue for consideration before it was the remedial action needed to tackle air pollution caused by crop burning.</span><br />'' <span style="color: #222222;"><br />'' It said that according to news reports, 25-30 per cent of the air pollution in the national capital region was caused due to crop burning in Punjab, Haryana, UP and Delhi.</span><br />'' <span style="color: #222222;"><br />''<br />''The tribunal referred to the news reports while hearing a plea by Ganga Lalwani seeking direction to provide machinery to poor and marginal farmers to avoid crop residue burning.</span><br />