At the end of the day money is just a proxy for votes. That is what makes politics so vulnerable to social media.
Urban conservationists may feel entitled to be unconcerned about food production because they are not farmers. But they can't be let off so easily for they are all farming by proxy.
It's not a matter of if economies around the world becoming low-carbon but when and how: through struggle and strife or through advancement and progressive leadership. Larry Elliot described it today as the 'Green New Deal.' It's a leadership we in Britain can provide and from which our economy can benefit.