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Urban Harvest

Confronting climate change and poverty, a new crop of city farmers comes of age in Africa. Table of Contents | Digital Edition
Guardian Environmental Network

Department: the synthesist

December 16, 2011: Scientists are finding that the high-resolution panoramic photos known as GigaPan images can open up strange new worlds. (1) Comments
September 1, 2011: When freshwater meets salt water, a power dynamic ensues. Blue Energy aims to harness it. (0) Comments
May 25, 2011: Artificial illumination at night takes its toll on the natural world. We need to find a way to curb its effects. (3) Comments
April 6, 2011: Forget fish farming. How about fish ranching? The Synthesist explores how "ranchers" could use sound to make raising fish more sustainable. (0) Comments
February 23, 2011: Nanotechnology shines a light on zooplankton and what may be the world’s largest migration -- one that unfolds every day around the globe. (0) Comments
January 27, 2011: Who needs Google Earth? Grassroots Mapping teaches you to generate high-resolution satellite imagery and track pollution or natural disasters for less than $100. It's as simple as tying a camera to a balloon. (1) Comments
December 20, 2010: Will the coming boom in space tourism unleash a new wave of climate problems? Our resident futurist wonders if the act of leaving the planet might change it for the worse. (0) Comments
November 23, 2010: Infrared light, invisible to the human eye, may be an untapped source of solar energy. (0) Comments
September 27, 2010: Human influence on nature is undeniable and enormous. Looking at nature as if we aren't here simply doesn't work. (0) Comments
August 25, 2010: Lately the moon has started to look like both a natural marvel and a tantalizing morsel, rich with subsurface resources -- if only we could easily extract them. Let's protect it before it's too late. (2) Comments