Sorry, I'll have a go at that.
The way I see it regarding gas and oil extraction is that the energy market is driven by economic factors. If we are extracting gas and oil to make it cheaper for our domestic market, we're not helping our economy move away from the dependence on oil and gas.
But you're right there needs to be an alternative...
We had a lot of wind in the UK, so that will be part of the mix. I agree nuclear should also be increased. People demonise nuclear power, but fossil fuel burning is killing lots of people early through respiratory conditions.
And (whoever already said it), I agree that making our homes, offices and factories more energy efficient should be a big focus.