There's a little group of people centred around the
project/products doing some very good work related to reducing
carbon emissions over a wide range of scales from monitoring and control
equipment that people can use in their own homes to supporting studies
Zero Carbon Britain
However, they do seem to me to have too much interest in the
realtime carbon intensity of the UK grid (measured in kilograms of CO₂
emitted for each kilowatt hour of electricity generated).
While looking at these figures can be educational, I think it's too
easy for people to be mislead in a way which would actually increase
emissions in the short term.