A small, dark plume along the edge of the slick, not far from the original location of the Deepwater Horizon rig, indicates a possible controlled burn of oil on the ocean surface.
距离深海钻塔的原始位置不远处，一缕小而黑的油膜痕迹，显示海面上石油有可能被控制燃烧。
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Many of them burn wood, waste and dung indoors for heating and cooking. The soot released into the air as a consequence is also a climate-changer because, being dark, it absorbs heat.