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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
Mrs. Chabayanzara follows podcast instructions to draw cattle vaccine, Zimbabwe - Lawrence Gudza

No local input, no impact

Pushing technology won't work without engaging poor communities, says Lawrence Gudza

From GM crops to forestry

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