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photo credit: bkuslerPhotovoltaic cells—those black squares an array of which comprises a solar panel—are getting more efficient, and gradually less expensive, all the time, thanks to ever-better designs which all them to focus the gathered sunlight on a more and more concentrated point. The size of the cells is decreasing as their efficiency rises, [...]

If you’re not sure how global warming and the climate crisis are affecting the part of the world you live in, all you have to do is look around. Factors like smog, landfills, and even litter can tell you a lot about global warming, and what you can do in order to save the planet [...]