Read More: New Scientist
THIS year has seen renewable records smashed in the UK. On 21 April, the country went a whole day without using coal to generate electricity – the first such day for 135 years. Then on 7 June, particularly sunny and windy conditions meant that renewable sources supplied more than half the UK’s electricity. Achievements like these make it sound like the green revolution is well under way. Many think the growth of renewables is now unstoppable, and that clean energy will entirely replace fossil fuels in the not-too-distant future. They may need to think again.