Counting marmots…
Harnessing the power of algae: new, greener fuel cells move step closer to reality A new design of algae-powered fuel cells that is five times more efficient than existing plant and algal models, as well as being potentially more cost-effective to produce and practical to use, has been developed by researchers at the University of Cambridge. As the global population increases, so too does energy This a big step forward demand. The threat of climate change means that there in the search for is an urgent need to find cleaner, renewable alternatives alternative, greener to fossil fuels that do not contribute extensive amounts fuels of greenhouse gases with potentially devastating — Paolo Bombelli consequences on our ecosystem. Solar power is considered to be a particularly attractive source as on average the Earth receives around 10,000 times more energy from the sun in a given time than is required by human consumption. In recent years, in addition to synthetic photovoltaic devices, biophotovoltaics (BPVs, also known as biological solar-cells) have emerged as an environmentally-friendly and low-cost approach to harvesting solar energy and converting it into electrical current. These solar cells utilise the photosynthetic properties of microorganisms such as algae to convert light into electric current that can be used to provide electricity.
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