Recommendation

At Marginal Revolution, Tyler Cowen defends the concept of limited resources. His Philosophical Observations are pointed and accurate. For example:

Conservatives, liberals, and libertarians all exhibit different attitudes toward death. Conservatives are obsessed with death; look at their emphasis on abortion, capital punishment, and the need to kill people in our foreign policy. In their view death is everywhere, and we must make hard decisions to limit it (banning abortion and invading other countries, for a start).

Worth a read.