So when the state turned over 187 hectares (460 acres) of forest for a planned refinery near Badama, a plot the same size had to be found for the Forest Department.

ECONOMIST: Poverty in India

The narrator becomes a young boy (alternately played by Noah Radcliffe and Jack Broderick) who wanders into a nearby forest to escape a family argument and gets swept up in the fast-unfolding plot, in which Cinderella, Little Red Riding Hood, Rapunzel and Jack (the one who brought down the beanstalk) run collectively afoul of a witch, a wolf and a giant.

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And that, in turn, can be used to estimate the amount of carbon stored in the plot examined, and extrapolated to calculate the carbon stored in larger areas of forest that have been scanned by lidar, but not measured with tapes.

ECONOMIST: Forest conservation