Guardian: Ed Miliband has used his first speech as climate change and energy secretary to call on prisons, schools and hospitals to generate more renewable energy. Speaking to the Environment Agency yesterday, Miliband said the public sector, which accounts for 10% of land in the UK, should be contributing more than the 1% of renewable energy it now generates. Miliband also called on the environment movement to put more pressure on his department in the run-up to international climate …