Control of the environment has increased the lifespan of billions of people. Summer air conditioning helps people especially older people who are affected more by hot weather than younger people and poor people who need air conditioning to keep a proper body temperature during the hot days of summer. Winter heating helps billions of people cope with cold weather and cold weather kills people. Home heating with oil or natural gas in the winter actually keeps people alive during cold weather. Oil and natural gas work by feeding a fire in a home heater. Fire literally keeps people alive.
Views: 1
