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"It has been known for more than 150 years that light can have an effect on the electrical properties of some materials. This is called the photoelectric effect. In 1921, Einstein received the Nobel Prize for his work explaining this. Photovoltaic cells are based on a related phenomenon called the photovoltaic effect, and they convert light directly into electricity. Let's look at how."

"Climate science is a complicated beast, and making solid predictions about the future is never easy. Forecasting exactly how our agricultural systems will cope with changing climate conditions is not straightforward, but it is clear that we can't take bountiful harvests for granted. We will need innovative adaptive measures to ensure that our agricultural systems cope with feeding the future generations."