This day, celebrated since 1989 at the initiative of the Governing Council of the United Nations Development Programme, aims to ask us who is left behind and why, what the cost is to people and communities, and what we must do globally to leave no one behind.
Its primary objective is to raise awareness regarding all the problems currently affecting the world’s population, especially in matters relating to the growth and development of people.
According to experts, over the past 30 years, societies around the world have made great strides in improving the collection, analysis and use of demographic data.
The new population figures, broken down by age, ethnicity, gender and other factors, now more accurately reflect the diversity of our communities.
These developments have led to significant improvements in health care delivery, leading to significant improvements in sexual and reproductive health and the ability to exercise rights and choice.
The increasing use of new technologies allows for more detailed and timely measurement of people’s experiences than ever before.
However, the most marginalized communities remain underrepresented in the data, which has a profound impact on their lives and well-being.
It took hundreds of thousands of years for the world’s population to reach one billion, and it only increased sevenfold in about another 200 years.
In 2011, the world’s population reached seven billion people, and in 2021 the number rose to nearly 7.9 billion people.
The human population is expected to reach 8.5 billion by 2030, 9.7 billion in 2050, and 10.9 billion in 2100.
This spectacular growth was driven by an increasing number of people reaching reproductive age, and was accompanied by major changes in fertility rates, increasing urbanization, and accelerating migration.
Experts warn that these trends will have far-reaching consequences, as they affect economic development, employment, income distribution, poverty and social protection.
It also affects efforts to ensure that everyone has access to health care, education, housing, sanitation, water, food and energy.
According to experts, in order to meet people’s needs more sustainably, policymakers must know how many people live on the planet, where they live, how old they are, and how many people there will be in the future.
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