To turn human waste into a usable fuel, Firefly uses a method called hydrothermal liquefaction, which is good for wet waste. By combining high pressure and heat, it converts the sewage into ...
The government is committing billions of pounds to an "unproven" green technology for reducing planet-warming gases without considering the impact on consumers' bills, MPs have warned.
It comes against a backdrop of new US president Donald Trump vowing to end previous leader Joe Biden’s policies of “climate extremism”. This is despite 2024 being registered as the world's hottest on ...