Energy & Green Tech

California startup to 'sponge' CO2 from the atmosphere

Scrubbing carbon dioxide from the air is imperative if humanity is to limit global warming, experts say, and a California startup says it can do just that, using limestone as a carbon-sucking sponge.

Engineering

Smart irrigation technology covers 'more crop per drop'

In agriculture today, robots and drones can monitor fields, temperature and moisture sensors can be automated to meet crop needs, and a host of other systems and devices make farms more efficient, resource-conscious, and ...

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