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Why did the experience of consciousness evolve from our underlying brain physiology? Despite being a vibrant area of neuroscience, current research on consciousness is characterised by disagreement and controversy – with several rival theories in contention. A recent scoping review of over 1,000 articles identified over 20 different theoretical accounts. Philosophers like David Chalmers argue
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Scientists have uncovered a new source of hazardous “forever chemical” pollution: the rechargeable lithium-ion batteries found in most electric vehicles. Some lithium-ion battery technologies use a class of PFAS chemicals, or per-and polyfluoroalkyl substances, that helps make batteries less flammable and conduct electricity. Scientists found high levels of these PFAS in air, water, snow, soil,