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Cement is one of those common building materials that you can find just about anywhere. When the cement starts to get cracked, fixing it is generally an easy task that involves widening the crack slightly before filling it with more cement. Now, imagine having to fix cracking cement that is buried 1 kilometer (3281…

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Should we geoengineer larger ice caps to reflect radiation away from the Earth to cool the climate? Is this a good idea? This article briefly explores these questions, based on the work of Jacob Haqq-Misra of Blue Marble Space Institute of Science.

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Imagine a kitchen in a busy household — dirty dishes piled in the sink, leftovers cold on the counter, and utensils strewn about. It’s hard to cook dinner in this situation. In a shared space like a kitchen, it is everyone’s responsibility to keep it clean. And when it is everyone’s…

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A new study unequivocally points to humans as the cause of the mass extinction of large animals all over the world during the course of the last 100,000 years. Was it mankind or climate change that caused the extinction of a considerable number of large mammals about the time of the last Ice Age? Researchers at Aarhus…