The success of the test means project leaders are considering scrapping plans to flood 900 acres (364 hectares) of farmland in Gloucestershire, which was initially proposed to provide a compensating habitat for fish.
7 January 2026ShareSave
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"There was a big step – jump – that people have questioned," Jackson says. "But now the world is awash with oil and it's not clear that the same calculations still apply."
The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.