Golf courses seem like a luxury we don't need in the current economic climate. Huge tracts of land just sitting there for wealthy pensioners to amble around. Pave some of those over for a start (you can keep the sandpits for the kids).
Wouldn't object to that as long as wildlife habitats were protected.
Also public access is needed to the sport so keep municipal courses and lose the private. That's where the difficulties arise I fear.
Despite the arguments linked by @Bruce Wayne to the contrary I feel that more houses equals more loss of green land. I'm not arguing that this needn't be the case if our housing was better managed. I'm saying the short term and instant gain people in power would probably rather pave over a park than look at how to equalise a system.