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Cattle herding in desert, India

Cattle herding in desert, India

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Science at Rio+20 by iStock/RapidEye

Latest on Rio+20

We track the news on science, technology and the Rio+20 Earth Summit
Well drilling in South Sudan - Flickr/Water for South Sudan

Under the surface

More tech and collaboration is needed before Africa's huge groundwater resources can quench its thirst

From GM crops to forestry

Learn more about the challenges of feeding our growing population versus caring for our planet