How serious a problem is population growth and control in the twenty-first century?

There are various opinions about this question since it involves predicting the future.

What do YOU think?

My opinion is :

The world is already at about twice it's carrying capacity, according to most experts. The estimate is that the sustainable population of the planet is around 4 billion. (We are over 7 billion.) There are three major problems with this: Disease, poverty, food and water insecurity

That is very sketchy.

I'd require that you provide some back-up data, including complete citations regarding these experts, for both of these:

"according to most experts" (Who are they? What makes them experts?)
and
"The estimate is that the sustainable population of the planet is around 4 billion." (Whose estimate? On what data is this estimate based?)

https://owl.purdue.edu/owl/research_and_citation/mla_style/mla_formatting_and_style_guide/mla_formatting_and_style_guide.html

To understand the seriousness of population growth and control in the twenty-first century, we need to examine some key factors. Here is an explanation of how you can approach understanding this issue:

1. Gathering data: Start by gathering information about current global population trends. You can access data from reliable sources like the United Nations, World Bank, or other reputable institutions. Look for statistics on population growth rates, projections, and regional variations.

2. Analyzing impacts: Population growth can have both positive and negative impacts on various aspects of society and the environment. Consider the following areas:

a. Resources and environment: Explore how population growth strains finite resources like water, energy, and food. Look for information on the increased demand for natural resources, deforestation, climate change, and pollution.

b. Social and economic factors: Examine how population growth affects access to healthcare, education, employment, poverty rates, and urbanization. Study case studies and research that highlight the social and economic consequences of population growth.

c. Regional variations: Analyze how different regions experience population growth differently. Consider factors such as population density, urbanization rates, fertility rates, and migration patterns.

3. Solutions and debates: Explore the measures that governments and organizations have taken to address population growth and control. Investigate the efficacy and ethical concerns associated with different approaches, such as family planning programs, educational initiatives, economic incentives, or immigration policies.

4. Expert opinions: Seek out the perspectives of experts in demography, sociology, and environmental studies. Read scholarly articles, reports, and books from respected researchers to gain a comprehensive understanding of the topic.

5. Critical thinking: Lastly, form your own perspective by critically evaluating the information you have gathered. Consider arguments from different sides of the debate, weigh the impacts, and consider the long-term implications of various population control strategies.

By following these steps, you can gain a deeper understanding of the seriousness of population growth and control in the twenty-first century. Remember to rely on well-sourced data and diverse viewpoints to form an informed opinion.