Today’s TED blog: Greg Asner about ecology from the air

Asner is giving various examples for the use of aerial photos and laser scanning data (LiDAR) in ecology, e.g. about the hunting behavior of lions, mapping the loss of forest, airborne taxonomic mapping, carbon mapping and many more. For a text version, please see

A rare peek on how Google build maps

An exclusive look inside Ground Truth, the secretive program to build the world's best accurate maps by Alexis C. Madrigal, enior editor at The Atlantic.

(Thank you Maning Sambale for sharing)