There are a number of reasons that world population growth continues to be taboo or at least sidestepped by international bodies addressing climate change and population matters.
First, actions to tackle rapid population growth are highly contentious, involving sensitive, personal matters of contraception, abortion, reproductive and sexual health and rights. While most women in more developed countries use contraception, an estimated 200 million women worldwide say that want to delay or prevent pregnancy and are asking for access to modern family planning methods. Making methods of birth control available in principle to couples is one thing; promoting, facilitating and subsidizing their access and use among individuals and couples by governmental authorities are another matter.
Second, many of those concerned about climate change, including environmentalists, climate scientists, leaders of nongovernmental organizations, politicians and journalists, are reluctant to become embroiled in controversial population issues, especially those relating to birth control and immigration. Rather than address world demographic growth and perhaps offend or, worse, alienate many of their donors and supporters, these “leaders” prefer to focus on technological fixes, which are viewed as the only appropriate and workable solutions to global climate change.
Third, a stabilized or declining population is feared by many people, especially those in finance, construction, manufacturing, farming, food processing and the military, thinking it will sap a nation’s economy and strength, inducing recession and eventually a depression. Low birth rates, especially below replacement level, are deemed a matter of national concern. For them, population growth — through natural increase and immigration — translates into more people and higher demand for goods and services, greater material consumption, additional workers and military recruits and thus higher profits. Consequently, environmental concerns, in particular human-induced climate change, are minimized as unproven and exaggerated.