"With this new technology, sandy soil has the potential to lead a new green revolution," said George Nyamadzawo, a professor at Bindura University in Zimbabwe.

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Many farmers across sub-Saharan Africa try to coax crops out of sandy soils that are not ideal for holding water and nutrients.


Carbon dioxide has been regulating Earth’s climate for hundreds of millions of years – new study

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Around 370 million years ago, Earth gradually descended into the longest lived and probably the most intense ice age witnessed by complex life: the Late Palaeozoic ice age. At its peak, huge continental ice sheets spread across much of the globe and the sea level fell by more than 100 metres. In all, this ice age lasted around 100 million years.