On the issue of the removal of the capital gains tax and all appreciated capital property, I think at the end of the day it really comes down to the donor: what is the donor's interest?
If the donor is interested in the ecologically sensitive land, that's where they'll make the donation. If they have an interest in health care or education, they'll make the donation there. I think that's really the donor's decision.
I wouldn't be particularly concerned if we had the same tax treatment for those gifts as for gifts to other charities.