"I don’t know why politicians can’t think in colour. Especially the colour green. We can build enough homes. We don’t need to lose our fields for that."

We can green the grey:
Futures Forum: Greening Grey Britain

And we can try and halt the greying of the green:
Futures Forum: Greenfield vs brownfield >>> "There are enough suitable brownfield sites for at least 1 million new homes."

As highlighted by the EDW blog today, back in September 2013, the Campaign to Protect Rural England enlisted the support of artists and writers to promote its latest campaign:

Jeanette Winterson said:
‘Concreting the countryside isn’t the answer to Britain’s housing problems. This government is out of touch with real life and tries to cover up its privilege by making what it thinks are popular decisions. We need imaginative people, not policy wonks or developers with vested interests, to re-draw the UK housing strategy. I don’t know why politicians can’t think in colour. Especially the colour green. We can build enough homes. We don’t need to lose our fields for that.’

“Literary Landscape Loss Lament” | East Devon Watch
Literary landscape loss lament - Campaign to Protect Rural England

The Express hosted a debate between the CPRE and the Adam Smith Institute on the issue:
The Express Debate - Green Belt Housing - YouTube
Green Belts under threat - Campaign to Protect Rural England
Press Release: Free up 3.7 percent of London’s Green Belt to build one million new homes, says new report — Adam Smith Institute

Last month, the CPRE reviewed the NPPF:
Number of homes built on undeveloped land reached 275,000 last year | Daily Mail Online
Green Belt under siege: the NPPF three years on - Campaign to Protect Rural England

275,000 proposed Green Belt homes break Conservative manifesto pledge
25th April 2016

The Campaign to Protect Rural England explains that new figures - showing there are now more than a quarter of a million houses planned for the Green Belt - make ‘a mockery of Government commitments to protect it.’
A year ago the Campaign to Protect Rural England (CPRE) published Green Belt under siege. This analysis showed that, despite five years of Government rhetoric that it would protect the Green Belt better than the previous Labour Government, local plan proposals in 2015 to release Green Belt land for housing already exceeded Labour’s unpopular 2009 regional plans.
The rhetoric keeps coming. In the past 12 months, the Conservative manifesto for the 2015 election committed the incoming Government to protecting the Green Belt, and Prime Minister David Cameron told CPRE: “Green belt land is extremely precious. Protecting the lungs around our cities is paramount for me.”
CPRE makes three conclusions from its findings. 

Firstly, houses planned on Green Belt land are at the highest point since the advent of the Government’s flagship planning policy – at 275,000.
Secondly, Green Belt policy is gradually being weakened, and new proposals would mean that it is weakened further.
And thirdly, the Government must strengthen national planning and land use policy in line with its commitments.
Green Belt Under Siege: 2016 - Campaign to Protect Rural England

And today, it's not just housing on green belt which concerns the CPRE:

Sidford Industrial estate (22,800sqm) – awaiting decision 16/0669/MOUT
Outline application accompanied by an Environmental Statement (with all matters reserved except access) for the development of up to 22,800sqm of floor space for use classes B1 (Office Light Industry), B2 (General Industry) and B8 (Storage and Distribution) with details of, and associated strategic landscaping for, the access, linking cycleway and footway, and flood improvements/attenuation.
Land Adjacent To Two Bridges Two Bridges Road Sidford
Sidford Industrial estate (22,800sqm) – awaiting decision « CPRE Devon

Or building on green space:

Council Offices, Sidmouth (115 extra care units) – awaiting decision
16/0872/MFUL The construction of an assisted living community for older people comprising extra care units, staff accommodation and communal facilities, including a kitchen, restaurant/bar/cafe, a well-being suite comprising gym, treatment rooms and pool, a communal lounge and storage facilities; car parking for residents, visitors and staff of the assisted living community; comprehensive landscaping comprising communal and private spaces; and associated groundworks.
Council Offices Knowle Sidmouth EX10 8HL
Council Offices, Sidmouth (115 extra care units) – awaiting decision « CPRE Devon

The CPRE has also been behind the campaign to strengthen Neighbourhood Planning:
Futures Forum: Neighbourhood Planning and Infrastructure Bill >>> >>> "putting neighbourhood plans at the heart of planning"

See also:
Futures Forum: Greenfield vs Brownfield
Futures Forum: Greenfield and Brownfield
Futures Forum: Greenfield vs Brownfield: part two
Futures Forum: Greenfield vs Brownfield .......... which is 'more expensive' ........... and for whom?
Futures Forum: Garden cities and greenfield sites
Futures Forum: Persimmon, Sidmouth and greenfield sites
Futures Forum: Garden cities and greenfield sites
Futures Forum: Recipe for disaster? "Greenfield sites, pretty locations in the countryside = high prices and little chance of affordable homes... Brownfield sites in urban areas = lower prices and greater chance of affordable homes... Developers prefer greenfield, bigger profits... No incentive to build on brownfield sites.
Futures Forum: CPRE: 'Getting Houses Built' >>> supporting small builders and improving the viability of brownfield development
Futures Forum: Greenfield vs brownfield >>> "There are enough suitable brownfield sites for at least 1 million new homes."
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