market is going _ alternatives to gas boilers. tue: market is going green, alternatives to gas boilers. tte: market is going green, and people know that we have the technological solutions to these problems, and they want to go green, and they know that we will be able one day to bring down the prices of green technology, evs and heat pumps and solar panels, in a way that we so rapidly made microwaves and mobile phones affordable. and they can see that we can do it, and when i was a kid, 80% of our energy came from coal. when i was mayor of london it was down to 40%. today, it is less than i%. and at the same time, we are turning this green industrial revolution into sustained economic growth, because we've cut c02 revolution into sustained economic growth, because we've cut co2 by 44% on 1990 levels in this country, and yet the uk economy has grown over that period by 78%. to adapt gordon gecko, who may or may not be a hero of anybody in this room, green is good, green is right, green works.