[Note: This is a version of post I wrote last year. I've restructured the argument to address the useful criticisms provided by my commenters. I should note that this post is addressed to Christians because non-believers may not share my understanding of the role and nature of sex. While there may be some overlap of agreement, the presuppositional attitude of most non-Christians would be so foreign to my view (that God created sexual relations with a specific form and for a particular range of purposes) it would be impossible to offer suggestions for a general audience, though I believe this post is as relevant and true for non-believers as it is for Christians.]
Each week my neighbors and I engage in a curious ethical ritual. On Wednesday morning before we leave for work we set outside our doors an artifact which expresses our obligation to the welfare of future generations. We call these objects “recycling bins.”
Recycling is one example of an action that we take in the present to benefit a group in the future. The earth has enough space and resources that all current generations could be extremely wasteful without having a detrimental effect on the global population. Future generations, however, would likely suffer if we are wantonly careless in our use of resources. For this reason the recycling of waste products is viewed as an important, albeit minor, act of virtue.
Although most people probably do not need to be persuaded that we have moral obligations to future generations, it would be useful to examine what form the argument would take. Philosopher Jim Nolt outlines the argument as follows:
1. We have obligations to all currently living people.
2. Future people are in no morally relevant respect different from currently living people.
3. We have obligations to all future people.
Nolt believes the argument is sound and adds:
The moral irrelevance of time of birth is perhaps best understood by the realization that we are future people-to our predecessors. The distinction between past and future is, after all, not ultimate and absolute, but relative to temporal perspective. In that respect, it is like the designation, "foreigner," which is relative to geographical perspective. Who counts as a foreigner depends on the country we inhabit. Likewise, who counts as a future person depends on the time we inhabit. All people are foreigners to people of countries other than their own. Likewise, all people belong to the future generations of their predecessors. [emphasis in original]
If this argument is true then we have generic obligations (i.e., don’t despoil the planet) to future generic groups (e.g., people living in 2056 A.D.). However, I contend that we also have specific obligations to specific individuals in the future. For example, I believe that Christian men and women who are unmarried (and are not called to a life of chastity) have certain present obligations to their future spouse.
The Marital Obligations of Single Christians.
