Quoted in "Should We Be Having Kids In The Age Of Climate Change?" at NPR.
ADDED: I think Nancy Nolan is being a drama queen. If anybody really cares about carbon emissions, stop your crying and be hard-headed about what emits carbon. It's not the person per se, but what the person does. Back in 2010, I made a list of changes you could make to your behavior. No air conditioning isn't on the list, because that is already a given. If you haven't done that yet, Nancy and the Weepers, you are crying crocodile tears. So get up and switch that off. Forever. And now, read my list:
1. Your weight should be at the low end of normal, indicating that you are not overconsuming the products of agriculture.
2. You should not engage in vigorous physical exercise, as this will increase your caloric requirements. You may do simple weight-lifting or calisthenics to keep in shape. Check how many calories per hour are burned and choose a form of exercise that burns as few calories as possible.
3. Free time should be spent sitting or lying still without using electricity. Don't run the television or music playing device. Reading, done by sunlight is the best way to pass free time. After dark, why not have a pleasant conversation with friends or family? Word games or board games should replace sports or video games.
4. Get up at sunrise. Don't waste the natural light. Try never to turn on the electric lights in your house or workplace. Put compact fluorescent bulbs in all your light fixtures. The glow is so ugly that it will reduce the temptation to turn them on.
5. Restrict your use of transportation. Do not assume that walking or biking is less productive of carbon emissions than using a highly efficient small car. Do not go anywhere you don't have to go. When there is no food in the house to make dinner, instead of hopping in the car to go to the grocery store or a restaurant, take it as a cue to fast. As noted above, your weight should be at the low end of normal, and opportunities to reach or stay there should be greeted with a happy spirit.
6. If you have free time, such as a vacation from work, spend it in your home town. Read library books, redo old jigsaw puzzles, meditate, tell stories to your children — the list of activities is endless. Just thinking up more items to put on that list is an activity that could be on the list. Really embrace this new way of life. A deep satisfaction and mental peace can be achieved knowing that you are saving the earth.