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Sydney’s community outbreak of COVID-19 has been dominated by the delta variant. Bai Xuefei/Xinhua via Getty Images

Why New Zealand is more vulnerable to a new COVID-19 outbreak than ever before

New Zealand’s capital is on high alert after an Australian visitor tested positive on their return home. With less than 10% vaccinated, New Zealanders remain vulnerable to new outbreaks.
Shutterstock/Longjourneys

Power from the ocean: can we use bio-fouling organisms to help extract energy from waves?

Ocean waves are a massive source of energy, but it’s challenging to design power generators for the harsh environment. Allowing marine organisms to grow on engineered structures could help.

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