How to Use Stinging Nettles (With Nettle Pesto Recipe)
Today I weeded my very overgrown flower garden, and learned (the hard way) that stinging nettles are the most common weed there. But despite the fire in my hands that lasted for several minutes, I was so grateful to find them! Here’s why…
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Biodiesel one slick solution, but more to come
By turning waste fryer oil into biodiesel, Harvard undergraduates turned a chemistry class into a living lab for understanding the multifaceted problems posed by global climate change and sustainable development.