UN warns 25 pct of world land highly degraded

(AP) -- The United Nations has completed the first-ever global assessment of the state of the planet's land resources, finding in a report Monday that a quarter of all land is highly degraded and warning the trend must be ...

Climate change threatens cereal crop yields: Study

The effects of climate change pose a major challenge for cereal production in many regions. In a study published in Nature Reviews Earth & Environment, ZALF scientists have investigated how warmer temperatures, increased ...

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