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Related Concept Videos

Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
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Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
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Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
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The characteristics that enable us to distinguish one substance from another are called properties.
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Related Experiment Video

Updated: Jan 21, 2026

The Use of an Automated System GreenFeed to Monitor Enteric Methane and Carbon Dioxide Emissions from Ruminant Animals
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Reducing carbon dioxide emissions; Does renewable energy matter?

Samuel Adams1, Christian Nsiah2

  • 1School of Public Service and Governance, Ghana Institute of Management and Public Administration, AH 50, Achimota, Accra, Ghana.

The Science of the Total Environment
|July 30, 2019
PubMed
Summary
This summary is machine-generated.

Nonrenewable energy significantly increases carbon dioxide (CO2) emissions in Sub-Saharan Africa, both short and long term. Economic growth also drives emissions, while urbanization and democracy may mitigate them.

Keywords:
Carbon dioxide emissionsEnvironmental degradationNonrenewable energyPollutionRenewable energyUrbanization

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Area of Science:

  • Environmental Science
  • Economics
  • Energy Policy

Background:

  • Understanding the drivers of carbon dioxide (CO2) emissions is crucial for environmental sustainability in developing regions.
  • Sub-Saharan Africa faces unique challenges in balancing energy needs, economic development, and environmental protection.
  • The interplay between energy consumption, economic growth, urbanization, and CO2 emissions requires nuanced investigation.

Purpose of the Study:

  • To investigate the long-run and short-run relationships between renewable energy, nonrenewable energy, and carbon dioxide (CO2) emissions in 28 Sub-Saharan African countries.
  • To analyze the impact of economic growth, urbanization, and democracy on CO2 emissions within the study region.
  • To provide empirical evidence for policymakers addressing climate change mitigation and sustainable energy strategies.

Main Methods:

  • Panel cointegration techniques were employed to analyze data from 1980-2014.
  • Estimation was performed using Fully Modified OLS (FMOLS) and Generalized Method of Moments (GMM) for robust results.
  • The study examined the effects of renewable energy, nonrenewable energy, GDP, urbanization, and democracy index on CO2 emissions.

Main Results:

  • Both renewable and nonrenewable energy consumption contribute to long-run CO2 emissions. However, only nonrenewable energy significantly increases emissions in the short run.
  • A percentage increase in nonrenewable energy consumption leads to 1.07% (short-run) and 1.9% (long-run) increases in CO2 emissions.
  • Economic growth (GDP) positively impacts CO2 emissions (1.3% short-run, 1.82% long-run), while urbanization shows a negative effect. Less democratic states exhibit higher pollution levels.

Conclusions:

  • Nonrenewable energy consumption is a primary driver of CO2 emissions in Sub-Saharan Africa, necessitating a shift towards sustainable energy sources.
  • Economic development strategies must incorporate environmental considerations to mitigate the adverse effects of growth on emissions.
  • Promoting democracy and sustainable urbanization could play a role in reducing the environmental footprint in the region.