This graph shows the population of the U.S. by race and ethnic group from 2000 to 2023. In 2023, there were around 21.39 million people of Asian origin living in the United States. A ranking of the most spoken languages across the world can be accessed here. U.S. populationCurrently, the white population makes up the vast majority of the United States’ population, accounting for some 252.07 million people in 2023. This ethnicity group contributes to the highest share of the population in every region, but is especially noticeable in the Midwestern region. The Black or African American resident population totaled 45.76 million people in the same year. The overall population in the United States is expected to increase annually from 2022, with the 320.92 million people in 2015 expected to rise to 341.69 million people by 2027. Thus, population densities have also increased, totaling 36.3 inhabitants per square kilometer as of 2021. Despite being one of the most populous countries in the world, following China and India, the United States is not even among the top 150 most densely populated countries due to its large land mass. Monaco is the most densely populated country in the world and has a population density of 24,621.5 inhabitants per square kilometer as of 2021. As population numbers in the U.S. continues to grow, the Hispanic population has also seen a similar trend from 35.7 million inhabitants in the country in 2000 to some 62.65 million inhabitants in 2021. This growing population group is a significant source of population growth in the country due to both high immigration and birth rates. The United States is one of the most racially diverse countries in the world.

The long-term use of cropland and cropland reclamation from natural ecosystems led to soil degradation. This study investigated the effect of the long-term use of cropland and cropland reclamation from natural ecosystems on soil organic carbon (SOC) content and density over the past 35 years. Altogether, 2140 topsoil samples (0–20 cm) were collected across Northeast China. Landsat images were acquired from 1985 to 2020 through Google Earth Engine, and the reflectance of each soil sample was extracted from the Landsat image that its time was consistent with sampling. The hybrid model that included two individual SOC prediction models for two clustering regions was built for accurate estimation after k-means clustering. The probability hybrid model, a combination between the hybrid model and classification probabilities of pixels, was introduced to enhance the accuracy of SOC mapping. Cropland reclamation results were extracted from the land cover time series dataset at a 5-year interval. Our study indicated that: (1) Long-term use of cropland led to a 3.07 g kg-1 and 6.71 Mg C ha-1 decrease in SOC content and density, respectively, and the decrease of SOC stock was 0.32 Pg over the past 35 years; (2) Nearly 64% of cropland had a negative change in terms of SOC content from 1985 to 2020; (3) Cropland reclamation track changed from high to low SOC content, and almost no cropland was reclaimed on the ‘Black soils’ after 2005; (4) Cropland reclamation from wetlands resulted in the highest decrease, and reclamation period of years 31–35 decreased when SOC density and SOC stock were 16.05 Mg C ha-1 and 0.005 Pg, respectively, while reclamation period of years 26–30 from forest witnessed SOC density and stock decreases of 8.33 Mg C ha-1 and 0.01 Pg, respectively. Our research results provide a reference for SOC change in the black soil region of Northeast China and can attract more attention to the area of the protection of ‘Black soils’ and natural ecosystems.

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Carbon Black In Lead-Acid Battery Market Size and Trends

The carbon black in lead-acid battery market size is forecast to increase by USD 113.4 million, at a CAGR of 4.3% between 2023 and 2028. The Carbon Black in Lead-Acid Battery market is experiencing significant growth due to the increasing demand from the automotive industry. The automotive sector's shift towards electrification and hybrid vehicles is driving the market's expansion. Additionally, the adoption of carbon black batteries in telecom towers for power backup systems is another growing trend.

However, the market faces challenges from the increasing competition posed by carbon black lithium-ion batteries, which offer higher energy density and longer cycle life. Despite this, the lead-acid battery market continues to grow, fueled by its cost-effectiveness, reliability, and widespread availability. The market is expected to witness steady growth in the coming years, with key applications in the automotive, telecommunications, and renewable energy sectors.

Carbon Black In Lead-Acid Battery Market Growth Analysis

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Carbon black, a conductive additive, plays a crucial role in enhancing the electrical conductivity of negative electrodes in lead-acid batteries. This property contributes significantly to the battery's performance and life cycle extension by suppressing lead sulphate formation. Lead-acid batteries are widely used in various applications, including telecom towers, fast charging systems, and the automotive sector, such as e-bikes, motive power, and forklift trucks. In the automotive industry, carbon black is used in both flooded and valve regulated lead-acid batteries, available in speciality grade and conductive grade. Carbon black also finds applications in electric motors, submarines, power backup systems like UPS and inverters. With the increasing focus on decarbonisation goals, carbon black in lead-acid battery market forecast significant growth. Additionally, carbon black's role extends to coating systems and polymers, further expanding its application scope in the battery industry.

Market Segmentation

The market research report provides comprehensive data (region-wise segment analysis), with forecasts and estimates in 'USD million ' for the period 2024-2028, as well as historical data from 2018 - 2022 for the following segments.

Battery Type Outlook

  Flooded lead-acid battery
  Valve regulated lead-acid (VRLA) battery





Region Outlook

  North America

    The U.S.
    Canada





  Europe

    U.K.
    Germany
    France
    Rest of Europe





  APAC

    China
    India


  South America

    Chile
    Brazil
    Argentina





  Middle East & Africa

    Saudi Arabia
    South Africa
    Rest of the Middle East & Africa

By Battery Type Insights

The flooded lead-acid battery segment is estimated to witness significant growth during the forecast period. Lead-acid batteries, a dominant player in the energy storage market, are essential for various applications due to their reliability and cost-effectiveness. The negative electrodes, a critical component of these batteries, significantly impact their electrical conductivity and electrochemical performance. Lead sulphate suppression is a key factor in extending the life cycle of lead-acid batteries, which is crucial for telecom towers, fast charging applications, and electric vehicles like e-bikes and motive power systems.

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The flooded lead-acid battery segment accounted for USD 298.70 million in 2018 and showed a gradual increase during the forecast period. Flooded lead-acid batteries and valve regulated lead-acid (VRLA) batteries, two popular types, employ specialty grade and conductive grade lead for enhanced performance. Forklift trucks, electric motors, submarines, power backup systems, UPS, inverters, and automotive batteries all benefit from lead-acid technology. Decarbonisation goals drive the market for lead-acid batteries as cost-efficient energy storage solutions, with specialty chemicals and performance materials playing a vital role in improving battery efficiency. Nickel-based batteries, current requirements, and UPS systems also necessitate the use of lead-acid batteries. Recycling and sustainability are essential considerations, with coating systems and polymers employed to ensure safety and minimize chemical hazards. Data centers, energy density, and the growing demand for renewable energy storage further boost the market's growth.

Regional Analysis

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APAC is estimated to contribute 47% to the growth of the global market during the forecast period. Technavio's analysts have elaborately explained the regional trends and drivers that shape the market during the forecast per

Nigeria has the largest population in Africa. As of 2025, the country counted over 237.5 million individuals, whereas Ethiopia, which ranked second, has around 135.5 million inhabitants. Egypt registered the largest population in North Africa, reaching nearly 118.4 million people. In terms of inhabitants per square kilometer, Nigeria only ranked seventh, while Mauritius had the highest population density on the whole African continent in 2023. The fastest-growing world region Africa is the second most populous continent in the world, after Asia. Nevertheless, Africa records the highest growth rate worldwide, with figures rising by over two percent every year. In some countries, such as Chad, South Sudan, Somalia, and the Central African Republic, the population increase peaks at over 3.4 percent. With so many births, Africa is also the youngest continent in the world. However, this coincides with a low life expectancy. African cities on the rise The last decades have seen high urbanization rates in Asia, mainly in China and India. African cities are also growing at large rates. Indeed, the continent has three megacities and is expected to add four more by 2050. Furthermore, Africa's fastest-growing cities are forecast to be Bujumbura, in Burundi, and Zinder, Nigeria, by 2035.

Characteristics of spatial correlation network for high-quality development of China’s animal husbandry industry.

Regression results of factors influencing the high-quality development of China’s animal husbandry industry.

In the middle of 2023, about 60 percent of the global population was living in Asia.The total world population amounted to 8.1 billion people on the planet. In other words 4.7 billion people were living in Asia as of 2023. Global populationDue to medical advances, better living conditions and the increase of agricultural productivity, the world population increased rapidly over the past century, and is expected to continue to grow. After reaching eight billion in 2023, the global population is estimated to pass 10 billion by 2060. Africa expected to drive population increase Most of the future population increase is expected to happen in Africa. The countries with the highest population growth rate in 2024 were mostly African countries. While around 1.47 billion people live on the continent as of 2024, this is forecast to grow to 3.9 billion by 2100. This is underlined by the fact that most of the countries wit the highest population growth rate are found in Africa. The growing population, in combination with climate change, puts increasing pressure on the world's resources.

Heterogeneity regression results of factors influencing the high quality development of China’s animal husbandry industry.

Regional differences in high-quality development of China’s animal husbandry industry and sources of differences, 2010–2022.

Descriptive statistics of SOC content and SOC density.

Classification of 30 provinces in China into categories of high quality development level of animal husbandry industry, 2010–2022.

Indicator system for evaluating the level of high-quality development of the animal husbandry industry.