![]() The rest is returned to the environment as heat. While the black surfaces of solar panels absorb most of the sunlight that reaches them, only a fraction ( around 15%) of that incoming energy gets converted to electricity. Blueprints have been drawn up for projects in Tunisia and Morocco that would supply electricity for millions of households in Europe. Researchers imagine it might be possible to transform the world’s largest desert, the Sahara, into a giant solar farm, capable of meeting four times the world’s current energy demand. In fact, the ten largest solar plants around the world are all located in deserts or dry regions. Deserts are spacious, relatively flat, rich in silicon – the raw material for the semiconductors from which solar cells are made - and never short of sunlight. The world’s most forbidding deserts could be the best places on Earth for harvesting solar power – the most abundant and clean source of energy we have. ![]() Zhengyao Lu, Lund University and Benjamin Smith, Western Sydney University Extreme conditions created a ‘perfect storm’ for catastrophic fires. ![]() ![]()
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