Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Carbon Cycle01:14

The Carbon Cycle

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.
Carbon Dioxide Transport in the Blood01:19

Carbon Dioxide Transport in the Blood

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.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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...
The Sulfur Cycle01:22

The Sulfur Cycle

Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...
Microbes and the Carbon Cycle01:24

Microbes and the Carbon Cycle

The carbon cycle is a fundamental Earth process involving the transfer of carbon among the biosphere, lithosphere, atmosphere, and hydrosphere. It plays a critical role in regulating the planet’s climate and supporting life by cycling carbon through various chemical forms and reservoirs. Carbon primarily circulates as carbon dioxide (CO₂), representing its oxidized form, while reduced forms such as methane (CH₄) and organic compounds also play essential roles.Microbial activity is central to...
The Calvin Benson Cycle01:46

The Calvin Benson Cycle

Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Photophoretic flight of perforated structures in near-space conditions.

Nature·2025
Same author

Impact of solar geoengineering on temperature-attributable mortality.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Toward constructive disagreement about geoengineering.

Science (New York, N.Y.)·2021
Same author

Solar geoengineering as part of an overall strategy for meeting the 1.5°C Paris target.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2018
Same author

Unmask temporal trade-offs in climate policy debates.

Science (New York, N.Y.)·2017
Same author

Stratospheric solar geoengineering without ozone loss.

Proceedings of the National Academy of Sciences of the United States of America·2016

Related Experiment Video

Updated: Jun 20, 2026

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
07:32

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

Why capture CO2 from the atmosphere?

David W Keith1

  • 1Energy and Environment System Group, Institute for Sustainable Energy Environment and Economy, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.

Science (New York, N.Y.)
|September 26, 2009
PubMed
Summary

Air capture technologies remove carbon dioxide (CO2) from ambient air. While costly, this method offers scalable solutions for diverse emission sources, partially independent of energy infrastructure.

Area of Science:

  • Environmental science
  • Chemical engineering

Background:

  • Carbon dioxide removal is crucial for climate change mitigation.
  • Air capture is an emerging technology alongside geological storage and geochemical weathering.
  • Current carbon capture methods are often tied to large power plants.

Purpose of the Study:

  • To evaluate the potential and challenges of air capture technologies.
  • To compare air capture with other carbon removal strategies.
  • To explore the economic and infrastructural implications of air capture.

Main Methods:

  • Analysis of industrial economies of scale applied to air capture.
  • Assessment of air capture's ability to address small and mobile emission sources.
  • Evaluation of air capture's partial decoupling from energy infrastructure.

More Related Videos

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
08:00

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture

Published on: September 29, 2023

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
08:17

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

Related Experiment Videos

Last Updated: Jun 20, 2026

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.
07:32

Monitoring Pedogenic Inorganic Carbon Accumulation Due to Weathering of Amended Silicate Minerals in Agricultural Soils.

Published on: June 4, 2021

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
08:00

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture

Published on: September 29, 2023

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation
08:17

Coupling Carbon Capture from a Power Plant with Semi-automated Open Raceway Ponds for Microalgae Cultivation

Published on: August 14, 2020

Main Results:

  • Air capture is intrinsically more difficult than capturing CO2 from power plants.
  • Air capture can leverage industrial economies of scale.
  • This technology can address decentralized and mobile emission sources.
  • Air capture offers partial independence from existing energy infrastructure.

Conclusions:

  • Air capture presents unique advantages despite higher costs.
  • Scalability and flexibility are key benefits of air capture.
  • This technology is a valuable addition to the portfolio of carbon dioxide removal solutions.