Guardian: The world needs to reduce its carbon emissions by roughly half before 2050. But here’s a fact: it’s doing the exact opposite at the moment and increasing them. Our government, meanwhile, has stalwartly set this country the target of reducing its carbon emissions by 80% by the same date. But that figure isn’t some distant, long-term objective. It’s a point on a sliding scale of carbon-saving that we need to start now. By way of a kickstart, the government is launching its low-carbon …