world population growth

World population growth refers to the increase in the number of people living on Earth over time. It results from births exceeding deaths and improved healthcare, which extends life expectancy. Since the 20th century, the global population has grown rapidly, reaching over 8 billion by 2023. However, growth rates vary by region; some countries experience high birth rates, while others face declining populations due to lower fertility and aging. Factors influencing growth include economic development, access to education and healthcare, cultural values, and policies. Managing population growth is important for sustainable resource use and environmental impact.