O'Sullivan made a flying start by knocking in a magnificent 140 total clearance in the opening frame.

BBC: O'Sullivan triumphs in Torquay

At the moment, standing forest is of little commercial value, and much of it continues to exist only because of laws intended to prevent total clearance of the land.

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The left-hander managed two breaks of 70 and one of 80 to lead 5-1 before Bond, finalist here back in 1995, reduced the gap in style with a 125 total clearance.

BBC: Higgins books spot in round two

Opinion was divided over whether the peak of his game was the 1982 world championship semi-final, when he rescued a deficit of 59-0 with a break of 69 to reverse the match entirely, or the final, when he made a total clearance of 135 in the final frame (his opponent, Ray Reardon, sitting pale with disbelief) and then, in tears, called his wife and baby daughter out of the crowd to hug them.

ECONOMIST: Alex Higgins

Today, small patches of forest clearance account for more than half the total.

ECONOMIST: Brazil